NASA SnowEx Project - Registry of Open Data on AWS

Description

This data set provides 3 m gridded, bare-earth elevations (excluding trees) that are used as the baseline for the Airborne Snow Observatory (ASO) snow-on products. The data were collected during snow-free conditions as part of the NASA/JPL ASO aircraft survey campaigns.

ASO_3M_SD

This data set contains 3 m gridded snow depths derived from airborne light detection and ranging, or lidar, measurements of surface elevations. The data were collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns.

ASO_50M_SD

This data set contains 50 m gridded snow depths derived from airborne light detection and ranging, or lidar, measurements of surface elevations. The data were collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns.

ASO_50M_SWE

This data set contains 50 m gridded snow water equivalent (SWE) values collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns. The data were derived from the ASO L4 Lidar Snow Depth 50m UTM Grid data product and from modeled snow density.

WV_LCC_SC_FSCA

This data set includes: (1) fine-scale snow and land cover maps from two mountainous study sites in the Western U.S., produced using machine-learning models trained to extract land cover data from WorldView-2 and WorldView-3 stereo panchromatic and multispectral images; (2) binary snow maps derived from the land cover maps; and (3) 30 m and 465 m fractional snow-covered area (fSCA) maps, produced via downsampling of the binary snow maps. The land cover classification maps feature between three and six classes common to mountainous regions and integral for accurate stereo snow depth mapping: illuminated snow, shaded snow, vegetation, exposed surfaces, surface water, and clouds. Also included are Landsat and MODSCAG fSCA map products. The source imagery for these data are the Maxar WorldView-2 and Maxar WorldView-3 Level-1B 8-band multispectral images, orthorectified and converted to top-of-atmosphere reflectance. These Level-1B images are available under the NGA NextView/EnhancedView license.

SNEX_HRSI_SD_DEM_CO

This data set contains a time series of snow depth maps and related intermediary snow-on and snow-off DEMs for Grand Mesa and the Banded Peak Ranch areas of Colorado derived from very-high-resolution (VHR) satellite stereo images and lidar point cloud data. Two of the snow depth maps coincide temporally with the 2017 NASA SnowEx Grand Mesa field campaign, providing a comparison between the satellite derived snow depth and in-situ snow depth measurements. The VHR stereo images were acquired each year between 2016 and 2022 during the approximate timing of peak snow depth by the Maxar WorldView-2, WorldView-3, and CNES/Airbus Pléiades-HR 1A and 1B satellites, while lidar data was sourced from the USGS 3D Elevation Program.

SNEX_MCS_Lidar_Raw

The data set described here provides raw lidar data collected as part of a multi-year effort to monitor monthly snow distribution over a 35 km² region of the Mores Creek Headwaters in the Boise Mountains of central Idaho between 2021 and 2025. Data acquisition in 2021 overlapped temporally with the NASA SnowEx 2021 field campaign. Digital terrain models (DTM), digital surface models (DSM) snow depth models, and canopy height models (CHM) derived from these point cloud data are available as SnowEx Mores Creek Summit (MCS) Airborne LiDAR Survey, Version 1.

SNEX_MCS_Lidar

The data set provides digital terrain models (DTM), digital surface models (DSM) snow depth models, and canopy height models (CHM), derived from point cloud data (available as SnowEx Mores Creek Summit (MCS) Airborne LiDAR Survey Raw, Version 1) acquired by airborne lidar scanning. Data were collected as part of a multi-year effort to monitor monthly snow distribution over a 35 km² region of the Mores Creek Headwaters in the Boise Mountains of central Idaho between 2021 and 2025. Data acquisition in 2021 overlapped temporally with the NASA SnowEx 2021 field campaign.

In October 2025, corrupted data files were updated for the following acquisition dates: 8 December 2022 and 9 February 2023.

SNEX17_SD_Perm

This data set contains snowpack relative permittivities and densities derived from Ground Penetrating Radar (GPR) surveys and airborne lidar observations of snow depths. The results of the original GPR surveys are published in the SnowEx17 Ground Penetrating Radar, Version 2 data set, while the lidar snow depths were sourced from ASO L4 Lidar Snow Depth 3m UTM Grid, Version 1. Data are available between 08 Feb 2017 to 25 Feb 2017 from Grand Mesa, a snow-covered, forested area about 40 miles east of Grand Junction. Parameters include two-way travel (TWT) time, lidar-measured snow depth, calculated snow water equivalent (SWE), calculated snow density, and calculated relative permittivity.

SNEX17_KT15_TB

This data set contains brightness temperature readings. Brightness temperatures were measured using a KT-15 pyrometer flown on a P-3 aircraft over 2017 SnowEx campaign study areas in Colorado, USA: Grand Mesa, a snow-covered, forested study site about 40 miles east of Grand Junction; and Senator Beck Basin, approximately 80 miles to the SSE of Grand Mesa. Data represents the nadir brightness temperature below the aircraft.

SNEX17_SD_TLI

The dataset comprises snow depth measurements extracted from snow poles in time-lapse images near Grand Mesa, CO during the SnowEx 2016-2017 field campaign. Snow poles were 3.048 m (10 ft) vertical poles painted orange. Collection occurred at 18 sites. At each site, five snow depth measurements were extracted every two hours, beginning at 8:00 AM daily. The time-lapse images are archived separately at NSIDC (SNEX17_TLI).

SNEX20_SWESARR_TB

This data set contains airborne microwave brightness temperature observations from the Goddard Space Flight Center SWESARR (Snow Water Equivalent Synthetic Aperture Radar and Radiometer) instrument during the winter (10-12 February 2020) NASA SnowEx 2020 campaign at Grand Mesa, CO. Observations were made at three frequencies (10.65, 18.7, and 36.5 GHz; referred to as X, K, and Ka bands, respectively), at horizontal polarization with a nominal 45-degree look angle.

SNEX20_CASIE_TIR

This data set contains long-wave infrared radiometer data, thermal infrared (TIR) imagery, and visible-band (RGB) imagery from the February 2020 NASA SnowEx field campaign flights over the Grand Mesa, CO. These data are from the center, nadir-viewing radiometer; center, nadir-viewing, TIR camera; or nadir-viewing, visible-band camera. Data were collected from the NASA SWESARR flights onboard the Navy CIRPAS Twin Otter. The measurements were to document the snow, forest, and land surface temperatures over targeted points of the mesa coincident with ground survey stations and can be used to study snow remote-sensing of signatures, small-scale temperature variability (sub-satellite resolution), diurnal snow temperature variability, effects of forest cover, and thermal snow budgets.

SNEX20_BR_BSU_SMP

This data set contains raw penetration force profiles from the SnowEx 2020 Time Series campaign in the Boise River Basin in Idaho. Measurements were taken using the SnowMicroPen (SMP), a digital snow penetrometer, from three snow pits. The data files contain force measurements of the snowpack from the top of the snow surface to the ground. Measurements took place approximately weekly between 18 December 2019 and 24 January 2020.

SNEX20_TLS_PC_BSU_RAW

This data set contains raw, unprocessed terrestrial laser scanner (TLS) point cloud data collected as part of the 2020 SnowEx campaign in Grand Mesa, Colorado. Data were collected under both snow-off (September 2019) and snow-on (February 2020) conditions, at both open and forested locations. Multiple scans were conducted at each site and registered together using common targets. Each point contains X, Y, and Z coordinates (Easting, Northing, and Elevation), as well as intensity (i). A processed version of this data set can be found here: https://doi.org/10.5067/F0M99WK7JW4X.

SNEX20_TLS_PC_BSU

This data set contains terrestrial laser scanner (TLS) point cloud data collected as part of the 2020 SnowEx campaign in Grand Mesa, Colorado. Data were collected under both snow-off (September 2019) and snow-on (February 2020) conditions, at both open and forested locations. Multiple scans were conducted at each site and registered together using common targets. Each point contains X, Y, and Z coordinates (Easting, Northing, and Elevation), as well as intensity (i). These TLS data can be used to determine snow depth and explore the interactions between snow and vegetation.

SNEX20_COCP_GPR_Raw

This data set contains the raw files from ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx20 campaign. Data were collected between 18 December 2019 and 12 March 2020.

SNEX20_COCP_GPR

This data set contains the results of ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx20 campaign. Data include two-way travel time, pit-measured snow density, calculated snow depth, and calculated snow water equivalent. Data were collected between 18 December 2019 and 12 March 2020

SNEX20_SD

This data set, collected during the SnowEx 2020 Intensive Operation Period (IOP) in Grand Mesa, Colorado, contains in situ snow depth measurements. Snow depth was measured using one of three instruments - Magnaprobe, Mesa 2, or pit ruler. Pit ruler data were collected from 150 snow pits identified for the Grand Mesa IOP. Magnaprobe and Mesa 2 data were collected along spiral tracks moving outwards from snow pit locations. This data set has a temporal coverage from 28 January to 12 February 2020.

SNEX20_CRSM

This data set contains the raw and processed data files from a COSMOS Rover soil moisture probe. The COSMOS Rover uses fast neutron counting to estimate soil moisture over a region up to 300m from the vehicle. Data were collected in one-minute intervals over four days (04 November to 07 November 2019) of driving around Grand Mesa, Colorado. Raw data parameters include atmospheric pressure, temperature, and relative humidity. These raw observations were converted to volumetric soil moisture in the processed data files.

SNEX20_CSSM

These data contain raw and processed hourly observations from a Hydroinnova COSMOS Stationary sensor probe. Parameters in the raw files include atmospheric pressure, temperature, and relative humidity. These observations were converted to volumetric soil moisture in the processed data files. Data were collected between 26 August 2019 and 31 May 2020 at Grand Mesa, Colorado and represent a 200 m to 300 m area around the instrument.

SNEX20_TLS_PC_CRREL

This data set contains terrestrial LIDAR survey (TLS) point cloud data collected at Grand Mesa, Colorado as part of the 2020 SnowEx campaign. Data were collected in fall 2019 (September) and winter 2020 (January and February). Each data file contains X, Y, and Z coordinates (Easting, Northing, and Elevation), along with ancillary information, such as intensity (i) and color (R,G,B), where available.

SNEX20_A19_GSM

Gravimetric soil moisture data measured from collected soil samples in autumn 2019 as part of the NASA SnowEx 2020 campaign at Grand Mesa, CO. A total of 77 soil samples were taken at snow pit locations, soil moisture stations, and other areas where both the mobile and stationary COsmic-ray Soil Moisture Observing Systems (COSMOS) operated.

SNEX20_A19_SD

Snow depth was measured in autumn 2019 as part of the NASA SnowEx 2020 campaign at Grand Mesa, CO. Measurements were taken in the vicinity of snow pit locations and between pit locations using a Magnaprobe or manual depth probes.

SNEX20_A19_SP

This data set contains snow pit measurements obtained as part of the SnowEx 2020 campaign at the Grand Mesa, Colorado, USA site in Autumn 2019. 21 locations were visited for snow pit observations. Some snow pit measurements are incomplete due to shallow or discontinuous snow cover.

SNEX20_A19_SWE

Snow water equivalent (SWE) measurements of the autumn shallow snow were obtained using SWE samplers (also referred to as SWE tubes) during the NASA SnowEx 2020 campaign (03-06 Nov. 2019) at Grand Mesa, CO. 221 measurements were taken in the vicinity of snow pit locations.

SNEX20_DSM

This data set consists of soil moisture and soil temperature measurements taken during the SnowEx 2020 field campaign. Soil moisture probes were deployed at 10 stations within the Colorado Grand Mesa study area and monitored soil properties at three different depths (5, 10, and 20 cm).

SNEX20_GM_SP

This data set contains snow pit observations from the SnowEx 2020 Grand Mesa Intensive Observation Period. Data were collected from 154 snow pits on Grand Mesa, Colorado between 27 January and 12 February 2020. The main parameters for this data set are snow temperature, snow depth, snow density, snow stratigraphy, snow grain size, liquid water content, and snow water equivalent. In addition to data files, this data set also contains site photos from each snow pit.

SNEX20_BSU_CMP_SWE

This data set was collected during the SnowEx 2020 Intensive Observation Period (IOP) in Grand Mesa, Colorado. These data contain snow water equivalent (SWE) estimates. SWE is derived from Sensors & Software pulseEKKO PRO 1 GHz multi-polarization ground penetrating radar (GPR) two-way travel times. Data were collected at three locations around Grand Mesa IOP snow pits 2N12 and 1S8 (see DOI: 10.5067/DUD2VZEVBJ7S for more details on Grand Mesa IOP snow pits). Data at snow pit 2N12 were acquired on the groomed snowmobile road (CMP1), in the fresh snow behind the snow pit wall (CMP2), and in the right rut of the SUSV track (CMP3). Data at snow pit 1S8 were acquired in the right rut of the SUSV track (CMP1), in the left rut of the SUSV track (CMP2), and in the fresh snow behind the snow pit wall (CMP3). The raw version of these data (DOI: 10.5067/CL5ZRBCEF8G3) are also archived at NSIDC.

SNEX20_BSU_GPR_Raw

This data set contains the geolocated, unprocessed results of a ground penetrating radar survey conducted as part of the 2020 SnowEx campaign. Data were collected at Grand Mesa, Colorado (a snow-covered, forested study site) between 28 January 2020 and 04 February 2020.

SNEX20_BSU_GPR

This data set contains snow water equivalent (SWE) and snow depth estimates derived from Ground Penetrating Radar (GPR) measurements. GPR measurements were collected during the SnowEx 2020 Grand Mesa Intensive Observation Period (IOP) between 28 January and 04 February 2020. Snow depth was estimated from GPR two-way travel times and average radar velocity; SWE was estimated from snow depth and snow density. These data are derived from the SnowEx20 Grand Mesa IOP BSU 1 GHz Multi-polarization GPR Raw, Version 1 data set (DOI: 10.5067/CJNEM8UDNXKA)

SNEX20_BSU_CMP_Raw

This data set was collected during the SnowEx 2020 Intensive Observation Period (IOP) in Grand Mesa, Colorado. These data contain the geolocated, unprocessed, common midpoint (CMP) gathers from a Sensors & Software pulseEKKO PRO 1 GHz multi-polarization ground penetrating radar (GPR). Multi-offset gathers were collected by placing antennas on the snow surface and expanding the antenna separation about a fixed midpoint out to a 2 m offset. CMP gathers were collected in HH and HV polarizations. Data were collected at three locations around Grand Mesa IOP snow pits 2N12 and 1S8 (see DOI: 10.5067/DUD2VZEVBJ7S for more details on Grand Mesa IOP snow pits). Data at snow pit 2N12 were acquired on the groomed snowmobile road (CMP1), in the fresh snow behind the snow pit wall (CMP2), and in the right rut of the SUSV track (CMP3). Data at snow pit 1S8 were acquired in the right rut of the SUSV track (CMP1), in the left rut of the SUSV track (CMP2), and in the fresh snow behind the snow pit wall (CMP3). These data can be used to estimate snow depth, snow density, and snow water equivalent (SWE).

SNEX20_BSU_CMP_TT

This data set was collected during the SnowEx 2020 Intensive Observation Period (IOP) in Grand Mesa, Colorado. These data contain the radar two-way travel times from a Sensors & Software pulseEKKO PRO 1 GHz multi-polarization ground penetrating radar (GPR). Data were collected at three locations around Grand Mesa IOP snow pits 2N12 and 1S8 (see DOI: 10.5067/DUD2VZEVBJ7S for more details on Grand Mesa IOP snow pits). Data at snow pit 2N12 were acquired on the groomed snowmobile road (CMP1), in the fresh snow behind the snow pit wall (CMP2), and in the right rut of the SUSV track (CMP3). Data at snow pit 1S8 were acquired in the right rut of the SUSV track (CMP1), in the left rut of the SUSV track (CMP2), and in the fresh snow behind the snow pit wall (CMP3). The raw version of these data (DOI: 10.5067/CL5ZRBCEF8G3) are also archived at NSIDC.

SNEX20_GM_CTSM

This data set characterizes snow microstructure for 6 snow pits from the SnowEx 2020 Grand Mesa Intensive Observation Period (February 2020) using microcomputed tomography (micro-CT). Included with this data set are two- and three-dimensional microstructural analysis of DMP/DEP casted and un-casted snow samples, available as .xlsx and .txt file, and visual representations of the three-dimensional snow structure, available is .bmp image files. Containers of snow were collected at 6 snow pits in approximately 17 cm intervals. There were approximately 5-8 discrete containers per pit and each container had an ~2 cm overlap with the sample below. A 6-cm section of snow was dissected from each container of snow, which were analyzed in ~2 cm sub-sections. Each sub-section was scanned in three intervals using a micro-CT instrument. The three interval scans comprise multiple slices, and were combined into the reconstructed final scan used for calculating the snow microstructural data.

SNEX20_GM_CSU_GPR_RAW

This data set the raw files collected with a Sensors & Software 1GHz ground penetrating radar (GPR) as part of the SnowEx 2020 Intensive Observation Period (IOP) at Grand Mesa, Colorado between 06 February 2020 and 09 February 2020. The more processed data are published in SnowEx20 Grand Mesa IOP CSU 1GHz GPR, Version 1 (DOI: 10.5067/S5EGFLCIAB18)

SNEX20_GM_CSU_GPR

This data set contains two-way travel times, snow depth and snow water equivalent (SWE) collected with a Sensors & Software 1GHz ground penetrating radar (GPR) as part of the SnowEx 2020 Intensive Observation Period (IOP) at Grand Mesa, Colorado between 06 February 2020 and 09 February 2020. These data are derived from the SnowEx20 Grand Mesa IOP CSU 1GHz GPR Raw, Version 1 data set (DOI: 10.5067/CT6NS2LIASRS)

SNEX20_GM_GBPM

The dataset consists of passive microwave measurements collected between 4 February and 12 February 2020 as part of the NASA SnowEx 2020 field campaign at the Grand Mesa, Colorado IOP study site. The measurements were taken at v- and h-polarization at both 19 and 37 GHz using two radiometers mounted on a sled. The radiometers measure emission of passive microwave radiation and record voltage for each radiometer. The voltage is converted to microwave brightness temperature using calibrations based on measurements of absorbers of known brightness temperature.

SNEX20_GM_SWE_SD

This data set contains snow water equivalent (SWE) and snow density raster data derived from a lidar-based snow depth data set (SnowEx20 Grand Mesa IOP QSI Lidar Snow Depth Data, Version 1), a lidar-based digital terrain model (ASO L4 Lidar Point Cloud Digital Terrain Model 3m UTM Grid, Version 1), and two GPR data sets (SnowEx20 Grand Mesa IOP BSU 1 GHz Multi-polarization GPR, Version 1 and Mesa IOP UNM 800 and 1600 MHz MALA GPR, Version 1). Data was collected during the NASA SnowEx 2020 field campaign in Grand Mesa, Colorado.

SNEX20_GM_Lidar

This data set contains rasterized snow depth maps derived from lidar point cloud data collected from Grand Mesa, Colorado during the SnowEx20 campaign. The subset data file was used as input data to derive SWE and snow density data, which is available as SnowEx20 Grand Mesa IOP Lidar and GPR-Derived Snow Water Equivalent and Snow Density, Version 1.

SNEX20_UNM_GPR

This data set contains two-way travel times, snow depth and now water equivalent from a ground penetrating radar survey conducted at Grand Mesa, Colorado. Data were collected between 28 January 2020 and 06 February 2020 as part of the SnowEx 2020 campaign.

SNEX20_GIS_REF

This data set contains geolocation information of the infrastructure locations for the SnowEx20 Intensive Observation Period (IOP) and Time Series (TS) campaigns. Available scientific infrastructure locations in this data set are tower and sensor locations, aircraft flight lines, planned and actual snow pit locations, and time-lapse camera locations. Additionally, this data set contains areal snow depth and tree density classification matrix over the Grand Mesa, CO study area.

SNEX20_SD_TLI

This data contains snow depth measurements derived from time-lapse images collected by cameras placed around Grand Mesa, CO at 29 sites coincident with other SnowEx 2020 measurements. The field view of all cameras includes a 3.049 m, (10 ft) vertical pole that was painted red with a yellow top to serve as a reference for quantifying snow depth. The time-lapse images are archived separately at NSIDC (SNEX20_TLI).

SNEX20_J_UNM_GPR

This data set contains two-way travel times from a ground penetrating radar survey conducted at Jemez, New Mexico. Data were collected between 12 February 2020 and 04 March 2020 as part of the SnowEx 2020 campaign.

SNEX20_SSA

This data set contains vertical profiles of snow reflectance, specific surface area (SSA), and spherical equivalent snow grain diameter. Data were collected during the SnowEx 2020 Grand Mesa, Colorado Intensive Observation Period between 27 January and 12 February 2020. Reflectance was measured at snow pits using one of two integrating sphere laser devices, IRIS (InfraRed IntegraXng Sphere) or IceCube. SSA and spherical equivalent diameter were then derived from reflectance.

SNEX20_VPTS_Raw

This data set contains an eight-day time series of vertical temperature profile measurements. Measurements were collected using a thermoprobe to a depth of 30 cm at two site locations. These data were collected as part of the SnowEx 2020 Intensive Observation Period in Grand Mesa, Colorado. Alongside temperature profiles, this data set contains snow depth measurements, manual temperature measurements, and thermal infrared camera images. These data are published without QA/QC or calibration with manual measurements.

SNEX20_SB_GST

This data set contains hourly ground surface temperature measurements collected between 20 October 2019 and 18 July 2020. Data were collected at 7 points along two plant monitoring transects in the Upper Basin of the Senator Beck Study Basin. Temperatures were measured using iButton temperature sensors.

SNEX20_SMP

This data set contains raw penetration force profiles from the SnowEx 2020 Intensive Observation Period in Grand Mesa, Colorado. Measurements were taken using the SnowMicroPen (SMP), a digital snow penetrometer. The data files contain force measurements (in Newtons) at various snow depths. Data are available from 28 January 2020 through 12 February 2020.

SNEX20_TS_IB

This data set contains snow change measurements from interval boards collected as part of the NASA SnowEx20 time series field campaign. Surveys were conducted at field sites across the Western United States 9 December 2019 and 22 April 2020. Snow change measurements from interval boards record the height of new snow (HN) and snow water equivalent (SWE) over weekly, and in some cases biweekly, intervals. Measurements were taken using a 30 cm Snowmetrics Snow Tube and spring scale. Interval boards were positioned nearby snow pit study areas and were checked during the collection of the SNEX20 Time Series Snow Pit data. During each visit, if new snow had accumulated on the board, three samples were collected before the board was cleared and placed at the top of the snow surface. Height of new snow was measured to the nearest 0.5 cm and SWE to the nearest mm. Observers also recorded a qualitative Yes/No regarding evidence of melt on the board. These data were collected to provide ground validation for the airborne UAVSAR L-band flights. Although the variable is referred to as "height of new snow", it represents the change in snow height and SWE depth over a given interval and is therefore subject to snow settlement and/or melt between visits.

SNEX20_TS_SP

The data set is a time-series of snow pit measurements obtained by the SnowEx community during the 2020 campaign. Between October 2019 and May 2020, data were collected from 454 snow pits at 12 regional locations throughout California, Colorado, Idaho, New Mexico, and Utah, USA. At each of the locations, between 1 and 11 sites covering a range of conditions (terrains, snow depths, etc.) were chosen for weekly snow pit observations. Also available are photos of the field notes and snow pit sites.

SNEX20_TLI

This data set contains sub-daily time-lapse images collected by cameras placed around Grand Mesa, CO at 29 sites coincident with other SnowEx 2020 measurements. The field view of all cameras includes a 3.049 m, (10 ft) vertical pole that was painted red with a yellow top to serve as a reference for quantifying snow depth. Snow depth data derived from these time-lapse images will be published separately at NSIDC.

SNEX20_COCP_SPD

This data set contains the results of ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx20 campaign. Data include two-way travel time, lidar-measured snow depth, derived snow water equivalent, derived snow density, and derived relative permittivity. Ground-penetrating radar two-way travel times were sourced from two previously published data sets: SnowEx20 Cameron Pass Ground Penetrating Radar, Version 1 and SnowEx21 Cameron Pass Ground Penetrating Radar, Version 1. The new data presented here represents a recalculation of the snow water equivalent (SWE), snow density, and relative permittivity using terrestrial lidar scan (TLS) data.

SNEX20_QSI_DEM

This data set is part of the SnowEx 2021 campaign and provides bare Earth digital elevation models (DEM) acquired by a scanning lidar system at a 0.5 m spatial resolution, and derived from point cloud digital terrain models. DEMs are available for September 2021 and from multiple areas in Colorado, Idaho, and Utah. These data were produced alongside Vegetation Height and Snow Depth data sets.

SNEX20_QSI_DEM_3m

This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides bare Earth digital elevation models (DEM) acquired by a scanning lidar system at a 3.0 m spatial resolution, and derived from point cloud digital terrain models. DEMs are available for September 2021 and from multiple areas in Colorado, Idaho, and Utah. These data were produced alongside Vegetation Height and Snow Depth data sets.

SNEX20_QSI_SD

This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides snow depth values at a 0.5 m spatial resolution, derived from point cloud digital terrain models. Snow depths are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah. These data were produced alongside DEM and Vegetation Height data sets.

SNEX20_QSI_SD_3m

This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides snow depth values at a 3.0 m spatial resolution, derived from point cloud digital terrain models. Snow depths are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah. These data were produced alongside DEM and Vegetation Height data sets.

SNEX20_QSI_VH

This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides vegetation height values at a 0.5 m spatial resolution, derived from point cloud digital terrain models. Vegetation heights are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah. These data were produced alongside DEM and Snow Depth data sets.

SNEX20_QSI_VH_3m

This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides vegetation height values at a 3.0 m spatial resolution, derived from point cloud digital terrain models. Vegetation heights are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah. These data were produced alongside DEM and Snow Depth data sets.

SNEX21_BR_GPR

This data set contains two-way travel time data calculated using the results of 1 GHz ground-penetrating radar surveys conducted at Banner Summit, as part of the SNEX21 Time Series campaign in the Boise River Basin, Idaho.

SNEX21_COCP_GPR_Raw

This data set contains the raw files from ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx21 campaign. Data were collected between 13 January 2021 and 27 May 2021.

SNEX21_COCP_GPR

This data set contains the results of 1 GHz ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx21 campaign. Data include two-way travel time, pit-measured snow density, calculated snow depth, and calculated snow water equivalent. Data were collected between 13 January 2021 and 27 May 2021.

SNEX21_CRNS_SWE

These data contain raw and processed hourly observations from a stationary Hydroinnova cosmic ray neutron sensor (CRNS). Data were collected between 22 November 2020 and 08 May 2021 at the SnowEx Prairie site at the Central Agricultural Research Center (CARC) in Moccasin, Montana and represent a footprint area of approximately 171 meters radius around the instrument. Observations in the raw files include neutron counts, atmospheric pressure, temperature, and relative humidity and related correction factors. These observations were converted to snow water equivalent (SWE) and soil moisture in the processed data files using Desilets, 2017, methodology from Schrön et al., 2017, and in-situ soil moisture samples collected on 06 May 2021 (available as SnowEx21 Prairie Station in Situ Dielectric Soil Moisture and Soil Temperature, Version 1).

SNEX21_PS_DSM

This dataset includes Digital Surface Models (DSMs) derived from UAV-LiDAR imagery acquired during the SnowEx 2021 field campaign at the Central Agricultural Research Center in central Montana (USA). The DSMs are at 0.3 m resolution and consist of one snow-off and seven snow-on flights. Also available is a 0.25 m resolution orthomosaic of the study area collected via UAV on 21 January 2021.

SNEX21_PS_MET

This data set contains observations from a meteorological station installed at the Central Agricultural Research Center in Moccasin Montana as part of the NASA SnowEx 2021 Prairie Snow field campaign. Parameters include: air temperature, wind speed and direction, and barometric pressure. Data are available from 12 November 2020 through 2 March 2021.

SNEX21_DSM

This data set consists of soil moisture and soil temperature measurements taken during the SnowEx 2021 field campaign. Soil moisture probes were deployed at 9 locations within the Montana Prairie Station study area and monitored soil properties at four different depths (5, 10, 20 and 50 cm).

SNEX21_SSR

This data set provides apparent surface spectral reflectance imagery which demonstrates snow albedo and snow optical property evolution across two distinct snow-covered environments in Colorado. Data collection occurred in the spring of 2021 as part of the NASA SnowEx mission. The two study sites (Senator Beck Basin and Grand Mesa) were chosen for their contrasting terrain and vegetation characteristics. Data collection occurred over three days (19 March, 1 April, and 29 April) to produce a time series data set across varying snow conditions.

SNEX21_TS_IB

This data set contains snow change measurements from interval boards collected as part of the NASA SnowEx21 time series field campaign. Surveys were conducted at field sites across the Western United States 18 November 2020 and 12 May 2021. Snow change measurements from interval boards record the height of new snow (HN) and snow water equivalent (SWE) over weekly, and in some cases biweekly, intervals. Measurements were taken using a 30 cm Snowmetrics Snow Tube and spring scale. The interval board network was expanded from the 2020 Time Series campaign to capture a broader spatial domain than previously done. A network of 4-6 interval boards accompanied a single snow pit study area varying in elevation and other physiographic characteristics. During each visit, if new snow had accumulated on the board, three samples were collected before the board was cleared and placed at the top of the snow surface. Height of new snow was measured to the nearest 0.5 cm and SWE to the nearest mm. Observers also recorded a qualitative Yes/No regarding evidence of melt on the board. These data were collected to provide ground validation for the airborne UAVSAR L-band flights. Although the variable is referred to as "height of new snow", it represents the change in snow height and SWE depth over a given interval and is therefore subject to snow settlement and/or melt between visits.

SNEX21_TS_SD

The data set contains manual snow depth measurements collected as part of the NASA SnowEx 2021 Time Series campaign. Data were collected at five out of seven Time Series study sites: Cameron Pass, Fraser Experimental Forest, and Senator Beck, Colorado; Boise River Basin, Idaho; and the Central Agriculture Research Center (CARC), Montana. Snow depth measurements were collected with either an avalanche probe or a SnowMetrics depth probe, with location data recorded using either a Mesa2 tablet with a geode GPS or handheld Garmin GPS unit.

SNEX23_Lidar_Raw

This data set provides raw lidar data from two regions of Alaska, USA collected as part of the NASA SnowEx 2023 field campaign. The study sites include a boreal forest environment in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and a coastal tundra environment in the North Slope region of the northern Alaska coastal plain (Arctic coastal plain and Upper Kuparuk Toolik). Processed data, including digital terrain models, snow depth, and canopy height derived from Point Cloud Digital Terrain Models (PCDTMs) are available as SnowEx23 Airborne Lidar-Derived 0.5M Snow Depth and Canopy Height, Version 1.

SNEX23_Lidar

This data set provides digital terrain models, snow depth, and canopy height, acquired by a scanning lidar system and derived from Point Cloud Digital Terrain Models (PCDTMs) from two regions of Alaska, USA collected as part of the NASA SnowEx 2023 field campaign. The study sites include a boreal forest environment in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and a coastal tundra environment in the North Slope region of the northern Alaska coastal plain (Arctic coastal plain and Upper Kuparuk Toolik). The raw data from which these data are derived are available as SnowEx23 Airborne Lidar Scans Raw, Version 1.

SNEX23_Apr23_AVIRISNG

This data set contains surface reflectance data collected from three boreal forest study sites (Delta Junction, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) around Fairbanks, Alaska as part of the NASA SnowEx 2023 field campaign. Data was acquired using the NASA Jet Propulsion Laboratory (JPL) Airborne Visible/Infrared Imaging Spectrometer – Next Generation (AVIRIS-NG) sensor mounted on a King Air B-200 aircraft. Data collection occurred during April and May 2023.

SNEX23_Apr_HyLab

This dataset provides surface spectral reflectance imagery which demonstrates snow albedo and snow optical properties during the NASA SnowEx 2023 field campaign that took place in Alaska between 7 April 2023 and 5 May 2023. Imagery was collected across several snow-covered boreal forest environments on April 20th, 2023, near Fairbanks, Alaska, including Farmers Loop Creamers Field (FLCF), and Caribou Poker Creek Research Watershed (CPCRW).

SNEX23_APR_SP

This data set contains snow pit data collected from 13 snow pits excavated during the NASA SnowEx23 field campaign near Fairbanks, Alaska. The snow pits were located across three field sites: the Caribou/Poker Creek Research Watershed, Farmer’s Loop/Creamers Field, and Delta Junction. The data was collected during April 2023 concurrent with the data published as SnowEx23 Apr23 IOP Snow Surface Imagery, Version 1, and coincident with hyperspectral measurements from NEON towers, drone, NASA's AVIRIS-NG instrument aboard an aerial platform, and other satellite-based hyperspectral measurements. Snow pit measurements were collected adjacent to spectrometer transects established throughout boreal forests, burned forests, and open meadows, with the goal of supporting features of snow spectra such as snow microstructure and water and ice content. Snow pit data was collected, processed, and formatted in accordance with standard NASA SnowEx methodology featured in other SnowEx 2023 snow pit datasets.

SNEX23_SSI

This data set contains 54 photographs of snow surfaces collected during the NASA SnowEx23 field campaign near Fairbanks, Alaska. Photos were acquired in April and May 2023 at three study sites that represent a range of landcover conditions, including intact boreal forest, recently and historically burned forest, and open meadows. Snow surface photographs were collected concurrently with ground-based hyperspectral spectrometer measurements, snow surface samples, and alongside coincident observations from NEON towers, uncrewed aerial vehicles (UAVs), NASA’s AVIRIS-NG airborne sensor, and hyperspectral satellite instruments. Each photo was taken at the same location as field snow surface reflectance and albedo measurements and snow surface samples, providing visual context for interpreting spectral variability.

SNEX23_Albedo

This data set contains a comprehensive set of field-based measurements of snow surface reflectance and broadband snow albedo collected during the NASA SnowEx 2023 field campaign in interior Alaska. Data were acquired in April and May 2023 across three study sites near Fairbanks, Alaska, selected to represent the dominant boreal landcover types: closed-canopy forests, recently and historically burned forests, and open meadows. Together, these environments capture the heterogeneity of snow–vegetation interactions that influence snow albedo in high-latitude ecosystems.

SNEX23_BCEF_TLS_Raw

This data set contains unprocessed point cloud data created from terrestrial lidar scans (TLS) collected during the SnowEx 2023 campaign from the Bonanza Creek Experimental Forest near Fairbanks, Alaska. Data were collected in October 2022 (snow-off) and March 2023 (snow-on). Digital terrain models (DTMs) derived from the raw point cloud data are available as the SnowEx23 Bonanza Creek Experimental Forest Terrestrial Lidar Scans, Version 1 (SNEX23_BCEF_TLS) data set

SNEX23_BCEF_TLS

This data set contains digital terrain models (DTMs) derived from terrestrial lidar scans (TLS) collected as part of the SnowEx 2023 campaign. Data were collected at the Bonanza Creek Experimental Forest near Fairbanks, Alaska in October 2022 (snow-off conditions) and March 2023 (snow-on conditions). The DTMs are provided as Geographic Tagged Image (GeoTIFF) files, where each file corresponds to a unique survey site. Unprocessed point cloud data from which these DTMs were derived are available as the SnowEx23 Bonanza Creek Experimental Forest Terrestrial Lidar Scans Raw, Version 1 (SNEX23_BCEF_TLS_Raw) data set

SNEX23_CSU_GPR_Raw

This data set contains the raw results of 1 GHz ground-penetrating radar surveys conducted as part of the NASA SnowEx23 field campaign in Alaska, USA. Surveys were conducted at three different field sites between 07 March 2023 and 16 March 2023: 1) Farmers Loop/Creamers Field, 2) the Bonanza Creek Experimental Forest, and 3) the Caribou/Poker Creek Research Watershed.

SNEX23_CR

This data set contains an inventory of corner reflectors installed in Northern Alaska, USA, as part of the NASA SnowEx 2023 field campaign (Vuyovich et al., 2024). Corner Reflectors (CRs) are objects with known response characteristics used to calibrate or study radar returns from airborne and spaceborne imagery. The SnowEx Alaska CRs were installed in situ between October 2022 and October 2023 for the following SnowEx Alaska intensive observation periods (IOPs): October 2022, March 2023, and October 2023. During the SnowEx Alaska field campaigns, CRs served two primary purposes. First, “engineering corner reflectors” were deployed to calibrate radar imagery and ensure precise backscatter measurements. Second, an array of “science corner reflectors” was installed to investigate the interaction between radar and forests. CRs were deployed at 32 locations across two SnowEx Alaska study areas: 9 in the Arctic tundra at the Upper Kuparuk Toolik (UKT) study area and 23 in the boreal forest at the Bonanza Creek Experimental Forest (BCEF) study area.

SNEX23_CRREL_GPR_Raw

This data set contains the results of 1 GHz ground-penetrating radar surveys conducted at the Upper Kuparuk/Toolik (UKT) site in northern Alaska, USA as part of the NASA SnowEx 2023 field campaign. Data were collected between 08 Mar 2023 to 15 Mar 2023, spatially coinciding with snow pit locations and along transects between snow pits. Data include georeferenced multichannel ground-penetrating radargrams stored within .nc files. PRocessed GPR data are available as SnowEx23 CRREL Ground Penetrating Radar, Version 1.

SNEX23_GIS_Ref

This dataset contains geolocation information for ground-based and airborne measurements collected in Alaska, USA as part of the NASA SnowEx 2023 campaign (Vuyovich et al., 2024). The purpose of this compilation is to facilitate the use of SnowEx 2023 Alaska data by providing Geographical Information System (GIS) files in one location.

SNEX23_SSA

This data set contains vertical profiles of snow reflectance and specific surface area (SSA) from the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, the Caribou Poker Creek watershed and Farmers Loop/Creamer’s Field), and a coastal tundra environment in the North Slope region of northern Alaska (the Arctic coastal plain and Upper Kuparuk Toolik), collected as part of the NASA SnowEx 2023 field campaign in March 2023. Reflectance was measured in snow pits using three different integrating sphere laser devices: an A2 Photonic Sensor IceCube (1310 nm), an IRIS (InfraRed Integrating Sphere) system (1310 nm), and an InfraSnow SSA sensor (945 nm). Measured reflectance values were converted to SSA during data processing. It is recommended that data users work with either the IceCube or IRIS data, as the InfraSnow data was collected primarily for testing of the instrument’s capabilities. Snow-off SSA data from these same study sites are available as SnowEx23 Laser Snow Microstructure Specific Surface Area Snow-off Data, Version 1.

SNEX23_SSA_SO

This data set reports vertical profiles of snow reflectance and specific surface area (SSA) from two study sites in Alaska, USA collected as part of the NASA SnowEx 2023 field campaign. The study sites include a boreal forest environment in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, the Caribou Poker Creek watershed and Farmers Loop/Creamer’s Field), and a coastal tundra environment in the North Slope region of northern Alaska (the Arctic coastal plain and Upper Kuparuk Toolik). Reflectance was measured in situ using an A2 Photonic Sensor IceCube (1310 nm). Measured reflectance values were converted to SSA during data processing following the methods of Gallet et al., (2009). Snow-on SSA data from these same study sites were collected in March 2023 and are available as SnowEx23 Laser Snow Microstructure Specific Surface Area Data, Version 1.

SNEX23_MAR22_SD

The data set contains snow depth measurements from two regions of Alaska, USA collected during the March 2022 intensive observation period (IOP) as part of the NASA SnowEx 2023 field campaign. The study sites include three boreal forest sites in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and a coastal tundra site in the North Slope region (Arctic coastal plain). Snow depth measurements collected from the study sampling sites during the subsequent field season are available as SnowEx23 Mar23 IOP Snow Depth Measurements, Version 1.

SNEX23_MAR23_SD

The data set contains snow depth measurements from five study sites in Alaska, USA; data were collected during the March 2023 intensive observation period (IOP) as part of the NASA SnowEx 2023 field campaign. The study sites include three boreal forest sites in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and two coastal tundra sites in the North Slope region (Arctic coastal plain and Upper Kuparuk Toolik). Snow depth measurements collected from the study sampling sites during the previous field season are available as SnowEx23 Mar22 IOP Snow Depth Measurements, Version 1.

SNEX23_CSU_GPR

This data set contains the results of 1 GHz ground-penetrating radar surveys conducted as part of the NASA SnowEx23 field campaign in Alaska, USA. Surveys were conducted at three different field sites between 07 March 2023 and 16 March 2023: 1) Farmers Loop/Creamers Field (FLCF), 2) the Bonanza Creek Experimental Forest (BCEF), and 3) the Caribou/Poker Creek Research Watershed (CPCW). Parameters in this data set include: two-way travel (TWT) time, snow density, calculated snow depth, and calculated snow water equivalent (SWE).

SNEX23_MAR23_Profiles

Snow depth profiles were measured from 7-16 March 2023 as part of the NASA SnowEx 2023 March 2023 Intensive Observation Period. Ground-based snow depth profile measurements were taken in the vicinity of 170 snow pits distributed across five study areas in Northern Alaska. Three study areas represented boreal forest snow conditions near Fairbanks, AK: Farmers Loop Creamers Field (FLCF), Caribou Poker Creeks Research Watershed (CPCRW), and Bonanza Creek Experimental Forest (BCEF). Two study areas represented Arctic tundra snow conditions: Arctic Coastal Plain (ACP) and Upper Kuparuk Toolik (UKT).

SNEX23_CBand

This data set contains C-band radar data collected during the NASA SnowEx 2023 Alaska field campaign between 08 March 2023 to 15 March 2023. Data was acquired from two study areas near Fairbanks, Alaska using a multi-polarization radar affixed to sled-mounted tower. The study sites (Caribou Poker Creek watershed and Farmer’s Loop/Creamer’s Field) are boreal forest and wetland environments. Data was also collected from a school adjacent to Farmer’s Loop, to record data from man-made surfaces (i.e., concrete and cultivated grass.)

SNEX23_MAR23_SP

The data set presents snow pit measurements collected during the NASA SnowEx March 2023 Intensive Observation Period (IOP) in Alaska, USA to use for calibration and validation with coincident airborne SWESARR and lidar measurements as part of the strategy focused on snow water equivalence (SWE) and snow depth (HS). In total, 170 snow pits were excavated between the five sites at locations representing a range of snow depth, vegetation, and topographic conditions. Three study areas represented boreal forest snow near Fairbanks, AK: Farmers Loop Creamers Field (FLCF), Caribou Poker Creek Research Watershed (CPCRW), and Bonanza Creek Experimental Forest (BCEF). Two study areas represented Arctic tundra snow: Arctic Coastal Plain (ACP) and Upper Kuparuk Toolik (UKT).

SNEX23_OCT22_GSR_Raw

This data set presents photographs of snow pit ground surface collected using a digital camera during the NASA SnowEx 2023 field campaign between 23 and 25 October 2022. The images were collected from 13 snow pits located at the Upper Kuparuk and Toolik (UKT) study site, an arctic tundra environment in Northern Alaska. These photographs were used to derive point cloud data representative of ground surface roughness, which are available as SnowEx23 Oct22 Ground Surface Roughness Reconstruction, Version 1.

SNEX23_OCT22_GSR

This data set presents ground surface roughness data collected during the NASA SnowEx 2023 field campaign between 23 and 25 October 2022. The data are formatted as point clouds, compiled from images acquired using a digital camera. Images were collected from 13 snow pits located at the Upper Kuparuk and Toolik (UKT) study site, an arctic tundra environment in Northern Alaska. The raw imagery from which these data are derived are available as SnowEx23 Oct22 Ground Surface Roughness Imagery, Version 1.

SNEX23_Oct22_SP

The data set presents snow pit measurements collected during the NASA SnowEx October 2022 Intensive Observation Period (IOP) in Alaska, USA. In total, 186 snow pits were excavated between the five sites at locations representing a range of snow depth, vegetation, and topographic conditions. Three study areas represented boreal forest snow near Fairbanks, AK: Farmers Loop Creamers Field (FLCF), Caribou Poker Creek Research Watershed (CPCRW), and Bonanza Creek Experimental Forest (BCEF). Two study areas represented Arctic tundra snow: Arctic Coastal Plain (ACP) and Upper Kuparuk Toolik (UKT).

SNEX23_OCT22_SSA

This data set reports vertical profiles of snow reflectance and specific surface area (SSA) collected in October 2022 as part of the NASA SnowEx 2023 Alaska field campaign. Measurements were taken from three snow pits located within the Upper Kuparuk Toolik (UKT) field site, a coastal tundra environment in the North Slope region of the northern Alaska coastal plain. Reflectance was measured in situ using a 1310 nm integrating sphere laser device (IceCube) and converted to SSA during data processing (Gallet et al., 2009). SSA data collected from the same study sites in October 2023 and March 2023 are available as SnowEx23 Laser Snow Microstructure Specific Surface Area Data, Version 1 and SnowEx23 Laser Snow Microstructure Specific Surface Area Snow-off Data, Version 1.

SNEX23_OCT23_GSR_Raw

This data set presents photographs of snow pit ground surface collected using a digital camera during the NASA SnowEx 2023 field campaign between 17 and 28 October 2023. The images were collected from 22 snow pits located across three study sites: Upper Kuparuk and Toolik (UKT), an arctic tundra environment in Northern Alaska, and Caribou Poker Creek watershed (CPCW) and Farmers Loop Creamers Field (FLCF), two boreal forest sites near Fairbanks, Alaska. These photographs were used to derive point cloud data representative of ground surface roughness, which are available as SnowEx23 Oct23 Ground Surface Roughness Reconstruction, Version 1.

SNEX23_OCT23_GSR

This data set presents ground surface roughness data collected during the NASA SnowEx 2023 field campaign between 17 and 28 October 2023. The data are formatted as point clouds, compiled from images acquired using a digital camera. Images were collected from 22 snow pits located across three study sites: Upper Kuparuk and Toolik (UKT), an arctic tundra environment in Northern Alaska, and Caribou Poker Creek watershed (CPCW) and Farmers Loop Creamers Field (FLCF), two boreal forest sites near Fairbanks, Alaska. The raw imagery from which these data are derived are available as SnowEx23 Oct23 Ground Surface Roughness Imagery, Version 1.

SNEX23_SD_TLI

The dataset comprises snow depth measurements extracted from snow poles in time-lapse images near Fairbanks, AK during the SnowEx 2022-2023 field campaign. Snow poles were 1.52 m (5 ft) vertical poles painted red with a 10.16-cm (4 in) yellow top. Collection occurred at 18 sites: 9 at the Bonanza Creek LTER and 9 at the Caribou-Poker Creeks Research Watershed. At each site, three snow depth measurements were extracted, beginning at 11:00 AM daily. The time-lapse images are archived separately at NSIDC (SNEX23_TLI).

SNEX23_SWE

This data set presents snow depth, snow water equivalent (SWE), and bulk snow density data collected during the NASA SnowEx 2023 field campaign between March 13-16 2023. Samples were collected using an Adirondack snow sampler (SWE tube) from two study sites: Upper Kuparuk and Toolik (UKT), an arctic tundra environment in Northern Alaska, and Farmers Loop Creamers Field (FLCF), a boreal forest near Fairbanks, Alaska.

SNEX23_Tree_SM

This dataset contains soil sensor measurements collected as part of the SnowEx Alaska 2023 field campaign. Time series measurements occurred at two locations within the Bonanza Creek Experimental Forest (BCEF), Alaska, from sensors inserted into the soil and into a tree. Variables measured include soil volumetric water content, soil and tree temperature, soil electrical conductivity, and tree apparent dielectric permittivity. Soil measurements were obtained using a Campbell Scientific CS650 water content reflectometer, and tree-mounted measurements were obtained using a METER Group TEROS 12 sensor.

SNEX23_TLI

The dataset comprises time-lapse images captured by cameras placed near Fairbanks, AK as part of the NASA SnowEx 2022-2023 field campaign. Nine cameras were installed in the Bonanza Creek Experimental Forest (BCEF) and eight cameras were installed in the Caribou-Poker Creek Research Watershed (CPCW). The time-lapse images were collected using a WingscapesTimeLapsePro camera in conjunction with a custom-made snow pole. The camera captured one image per hour between 1100 and 1300 local standard time for a total of three images a day, documenting the fluctuations in snow levels throughout the observation period.

SNEX23_UW_GPR

This data set contains the results of 1 GHz ground-penetrating radar surveys conducted at the Arctic Coastal Plain (ACP) site and the Upper Kuparuk/Toolik (UKT) site in northern Alaska during the SnowEx23 field campaign. Data include two-way travel time, derived snow depth, and derived snow water equivalent. Data were collected between 8 - 14 March 2023.

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Update Frequency

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License

Creative Commons BY 4.0

Documentation

https://nsidc.org/data/aso_3m_pcdtm/versions/1

Managed By

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Contact

https://earthdata.nasa.gov/contact

How to Cite

NASA SnowEx Project was accessed on DATE from https://registry.opendata.aws/nasa-snowex.

Resources on AWS

Description

ASO_3M_PCDTM v1 - This data set provides 3 m gridded, bare-earth elevations (excluding trees) that are used as the baseline for the Airborne Snow Observatory (ASO) snow-on products. The data were collected during snow-free conditions as part of the NASA/JPL ASO aircraft survey campaigns.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/ASO/ASO_3M_PCDTM/1

AWS Region

us-west-2
Description

ASO_3M_SD v1 - This data set contains 3 m gridded snow depths derived from airborne light detection and ranging, or lidar, measurements of surface elevations. The data were collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/ASO/ASO_3M_SD/1

AWS Region

us-west-2
Description

ASO_50M_SD v1 - This data set contains 50 m gridded snow depths derived from airborne light detection and ranging, or lidar, measurements of surface elevations. The data were collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/ASO/ASO_50M_SD/1

AWS Region

us-west-2
Description

ASO_50M_SWE v1 - This data set contains 50 m gridded snow water equivalent (SWE) values collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns. The data were derived from the ASO L4 Lidar Snow Depth 50m UTM Grid data product and from modeled snow density.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/ASO/ASO_50M_SWE/1

AWS Region

us-west-2
Description

WV_LCC_SC_FSCA v1 - This data set includes: (1) fine-scale snow and land cover maps from two mountainous study sites in the Western U.S., produced using machine-learning models trained to extract land cover data from WorldView-2 and WorldView-3 stereo panchromatic and multispectral images; (2) binary snow maps derived from the land cover maps; and (3) 30 m and 465 m fractional snow-covered area (fSCA) maps, produced via downsampling of the binary snow maps. The land cover classification maps feature between three and six classes common to mountainous regions and integral for accurate stereo snow depth mapping:...

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/WV_LCC_SC_FSCA/1

AWS Region

us-west-2
Description

SNEX_HRSI_SD_DEM_CO v1 - This data set contains a time series of snow depth maps and related intermediary snow-on and snow-off DEMs for Grand Mesa and the Banded Peak Ranch areas of Colorado derived from very-high-resolution (VHR) satellite stereo images and lidar point cloud data. Two of the snow depth maps coincide temporally with the 2017 NASA SnowEx Grand Mesa field campaign, providing a comparison between the satellite derived snow depth and in-situ snow depth measurements.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX_HRSI_SD_DEM_CO/1

AWS Region

us-west-2
Description

SNEX_MCS_Lidar_Raw v1 - The data set described here provides raw lidar data collected as part of a multi-year effort to monitor monthly snow distribution over a 35 km² region of the Mores Creek Headwaters in the Boise Mountains of central Idaho between 2021 and 2025. Data acquisition in 2021 overlapped temporally with the NASA SnowEx 2021 field campaign.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX_MCS_Lidar_Raw/1

AWS Region

us-west-2
Description

SNEX_MCS_Lidar v1 - The data set provides digital terrain models (DTM), digital surface models (DSM) snow depth models, and canopy height models (CHM), derived from point cloud data (available as SnowEx Mores Creek Summit (MCS) Airborne LiDAR Survey Raw, Version 1) acquired by airborne lidar scanning. Data were collected as part of a multi-year effort to monitor monthly snow distribution over a 35 km² region of the Mores Creek Headwaters in the Boise Mountains of central Idaho between 2021 and 2025.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX_MCS_Lidar/1

AWS Region

us-west-2
Description

SNEX17_SD_Perm v1 - This data set contains snowpack relative permittivities and densities derived from Ground Penetrating Radar (GPR) surveys and airborne lidar observations of snow depths. The results of the original GPR surveys are published in the SnowEx17 Ground Penetrating Radar, Version 2 data set, while the lidar snow depths were sourced from ASO L4 Lidar Snow Depth 3m UTM Grid, Version 1.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX17_SD_Perm/1

AWS Region

us-west-2
Description

SNEX17_KT15_TB v1 - This data set contains brightness temperature readings. Brightness temperatures were measured using a KT-15 pyrometer flown on a P-3 aircraft over 2017 SnowEx campaign study areas in Colorado, USA: Grand Mesa, a snow-covered, forested study site about 40 miles east of Grand Junction; and Senator Beck Basin, approximately 80 miles to the SSE of Grand Mesa.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX17_KT15_TB/1

AWS Region

us-west-2
Description

SNEX17_SD_TLI v1 - The dataset comprises snow depth measurements extracted from snow poles in time-lapse images near Grand Mesa, CO during the SnowEx 2016-2017 field campaign. Snow poles were 3.048 m (10 ft) vertical poles painted orange.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX17_SD_TLI/1

AWS Region

us-west-2
Description

SNEX20_SWESARR_TB v1 - This data set contains airborne microwave brightness temperature observations from the Goddard Space Flight Center SWESARR (Snow Water Equivalent Synthetic Aperture Radar and Radiometer) instrument during the winter (10-12 February 2020) NASA SnowEx 2020 campaign at Grand Mesa, CO. Observations were made at three frequencies (10.65, 18.7, and 36.5 GHz; referred to as X, K, and Ka bands, respectively), at horizontal polarization with a nominal 45-degree look angle.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_SWESARR_TB/1

AWS Region

us-west-2
Description

SNEX20_CASIE_TIR v1 - This data set contains long-wave infrared radiometer data, thermal infrared (TIR) imagery, and visible-band (RGB) imagery from the February 2020 NASA SnowEx field campaign flights over the Grand Mesa, CO. These data are from the center, nadir-viewing radiometer; center, nadir-viewing, TIR camera; or nadir-viewing, visible-band camera.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_CASIE_TIR/1

AWS Region

us-west-2
Description

SNEX20_BR_BSU_SMP v1 - This data set contains raw penetration force profiles from the SnowEx 2020 Time Series campaign in the Boise River Basin in Idaho. Measurements were taken using the SnowMicroPen (SMP), a digital snow penetrometer, from three snow pits.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_BR_BSU_SMP/1

AWS Region

us-west-2
Description

SNEX20_TLS_PC_BSU_RAW v1 - This data set contains raw, unprocessed terrestrial laser scanner (TLS) point cloud data collected as part of the 2020 SnowEx campaign in Grand Mesa, Colorado. Data were collected under both snow-off (September 2019) and snow-on (February 2020) conditions, at both open and forested locations.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_TLS_PC_BSU_RAW/1

AWS Region

us-west-2
Description

SNEX20_TLS_PC_BSU v1 - This data set contains terrestrial laser scanner (TLS) point cloud data collected as part of the 2020 SnowEx campaign in Grand Mesa, Colorado. Data were collected under both snow-off (September 2019) and snow-on (February 2020) conditions, at both open and forested locations.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_TLS_PC_BSU/1

AWS Region

us-west-2
Description

SNEX20_COCP_GPR_Raw v1 - This data set contains the raw files from ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx20 campaign. Data were collected between 18 December 2019 and 12 March 2020.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_COCP_GPR_Raw/1

AWS Region

us-west-2
Description

SNEX20_COCP_GPR v1 - This data set contains the results of ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx20 campaign. Data include two-way travel time, pit-measured snow density, calculated snow depth, and calculated snow water equivalent.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_COCP_GPR/1

AWS Region

us-west-2
Description

SNEX20_SD v1 - This data set, collected during the SnowEx 2020 Intensive Operation Period (IOP) in Grand Mesa, Colorado, contains in situ snow depth measurements. Snow depth was measured using one of three instruments - Magnaprobe, Mesa 2, or pit ruler.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_SD/1

AWS Region

us-west-2
Description

SNEX20_CRSM v1 - This data set contains the raw and processed data files from a COSMOS Rover soil moisture probe. The COSMOS Rover uses fast neutron counting to estimate soil moisture over a region up to 300m from the vehicle.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_CRSM/1

AWS Region

us-west-2
Description

SNEX20_CSSM v1 - These data contain raw and processed hourly observations from a Hydroinnova COSMOS Stationary sensor probe. Parameters in the raw files include atmospheric pressure, temperature, and relative humidity.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_CSSM/1

AWS Region

us-west-2
Description

SNEX20_TLS_PC_CRREL v1 - This data set contains terrestrial LIDAR survey (TLS) point cloud data collected at Grand Mesa, Colorado as part of the 2020 SnowEx campaign. Data were collected in fall 2019 (September) and winter 2020 (January and February).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_TLS_PC_CRREL/1

AWS Region

us-west-2
Description

SNEX20_A19_GSM v1 - Gravimetric soil moisture data measured from collected soil samples in autumn 2019 as part of the NASA SnowEx 2020 campaign at Grand Mesa, CO. A total of 77 soil samples were taken at snow pit locations, soil moisture stations, and other areas where both the mobile and stationary COsmic-ray Soil Moisture Observing Systems (COSMOS) operated.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_A19_GSM/1

AWS Region

us-west-2
Description

SNEX20_A19_SD v1 - Snow depth was measured in autumn 2019 as part of the NASA SnowEx 2020 campaign at Grand Mesa, CO. Measurements were taken in the vicinity of snow pit locations and between pit locations using a Magnaprobe or manual depth probes.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_A19_SD/1

AWS Region

us-west-2
Description

SNEX20_A19_SP v1 - This data set contains snow pit measurements obtained as part of the SnowEx 2020 campaign at the Grand Mesa, Colorado, USA site in Autumn 2019. 21 locations were visited for snow pit observations.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_A19_SP/1

AWS Region

us-west-2
Description

SNEX20_A19_SWE v1 - Snow water equivalent (SWE) measurements of the autumn shallow snow were obtained using SWE samplers (also referred to as SWE tubes) during the NASA SnowEx 2020 campaign (03-06 Nov. 2019) at Grand Mesa, CO.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_A19_SWE/1

AWS Region

us-west-2
Description

SNEX20_DSM v1 - This data set consists of soil moisture and soil temperature measurements taken during the SnowEx 2020 field campaign. Soil moisture probes were deployed at 10 stations within the Colorado Grand Mesa study area and monitored soil properties at three different depths (5, 10, and 20 cm).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_DSM/1

AWS Region

us-west-2
Description

SNEX20_GM_SP v1 - This data set contains snow pit observations from the SnowEx 2020 Grand Mesa Intensive Observation Period. Data were collected from 154 snow pits on Grand Mesa, Colorado between 27 January and 12 February 2020.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GM_SP/1

AWS Region

us-west-2
Description

SNEX20_BSU_CMP_SWE v1 - This data set was collected during the SnowEx 2020 Intensive Observation Period (IOP) in Grand Mesa, Colorado. These data contain snow water equivalent (SWE) estimates.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_BSU_CMP_SWE/1

AWS Region

us-west-2
Description

SNEX20_BSU_GPR_Raw v1 - This data set contains the geolocated, unprocessed results of a ground penetrating radar survey conducted as part of the 2020 SnowEx campaign. Data were collected at Grand Mesa, Colorado (a snow-covered, forested study site) between 28 January 2020 and 04 February 2020.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_BSU_GPR_Raw/1

AWS Region

us-west-2
Description

SNEX20_BSU_GPR v1 - This data set contains snow water equivalent (SWE) and snow depth estimates derived from Ground Penetrating Radar (GPR) measurements. GPR measurements were collected during the SnowEx 2020 Grand Mesa Intensive Observation Period (IOP) between 28 January and 04 February 2020.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_BSU_GPR/1

AWS Region

us-west-2
Description

SNEX20_BSU_CMP_Raw v1 - This data set was collected during the SnowEx 2020 Intensive Observation Period (IOP) in Grand Mesa, Colorado. These data contain the geolocated, unprocessed, common midpoint (CMP) gathers from a Sensors & Software pulseEKKO PRO 1 GHz multi-polarization ground penetrating radar (GPR).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_BSU_CMP_Raw/1

AWS Region

us-west-2
Description

SNEX20_BSU_CMP_TT v1 - This data set was collected during the SnowEx 2020 Intensive Observation Period (IOP) in Grand Mesa, Colorado. These data contain the radar two-way travel times from a Sensors & Software pulseEKKO PRO 1 GHz multi-polarization ground penetrating radar (GPR).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_BSU_CMP_TT/1

AWS Region

us-west-2
Description

SNEX20_GM_CTSM v1 - This data set characterizes snow microstructure for 6 snow pits from the SnowEx 2020 Grand Mesa Intensive Observation Period (February 2020) using microcomputed tomography (micro-CT). Included with this data set are two- and three-dimensional microstructural analysis of DMP/DEP casted and un-casted snow samples, available as .xlsx and .txt file, and visual representations of the three-dimensional snow structure, available is .bmp image files.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GM_CTSM/1

AWS Region

us-west-2
Description

SNEX20_GM_CSU_GPR_RAW v1 - This data set the raw files collected with a Sensors & Software 1GHz ground penetrating radar (GPR) as part of the SnowEx 2020 Intensive Observation Period (IOP) at Grand Mesa, Colorado between 06 February 2020 and 09 February 2020. The more processed data are published in SnowEx20 Grand Mesa IOP CSU 1GHz GPR, Version 1 (DOI: 10.5067/S5EGFLCIAB18).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GM_CSU_GPR_RAW/1

AWS Region

us-west-2
Description

SNEX20_GM_CSU_GPR v1 - This data set contains two-way travel times, snow depth and snow water equivalent (SWE) collected with a Sensors & Software 1GHz ground penetrating radar (GPR) as part of the SnowEx 2020 Intensive Observation Period (IOP) at Grand Mesa, Colorado between 06 February 2020 and 09 February 2020. These data are derived from the SnowEx20 Grand Mesa IOP CSU 1GHz GPR Raw, Version 1 data set (DOI: 10.5067/CT6NS2LIASRS).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GM_CSU_GPR/1

AWS Region

us-west-2
Description

SNEX20_GM_GBPM v1 - The dataset consists of passive microwave measurements collected between 4 February and 12 February 2020 as part of the NASA SnowEx 2020 field campaign at the Grand Mesa, Colorado IOP study site. The measurements were taken at v- and h-polarization at both 19 and 37 GHz using two radiometers mounted on a sled.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GM_GBPM/1

AWS Region

us-west-2
Description

SNEX20_GM_SWE_SD v1 - This data set contains snow water equivalent (SWE) and snow density raster data derived from a lidar-based snow depth data set (SnowEx20 Grand Mesa IOP QSI Lidar Snow Depth Data, Version 1), a lidar-based digital terrain model (ASO L4 Lidar Point Cloud Digital Terrain Model 3m UTM Grid, Version 1), and two GPR data sets (SnowEx20 Grand Mesa IOP BSU 1 GHz Multi-polarization GPR, Version 1 and Me...

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GM_SWE_SD/1

AWS Region

us-west-2
Description

SNEX20_GM_Lidar v1 - This data set contains rasterized snow depth maps derived from lidar point cloud data collected from Grand Mesa, Colorado during the SnowEx20 campaign. The subset data file was used as input data to derive SWE and snow density data, which is available as SnowEx20 Grand Mesa IOP Lidar and GPR-Derived Snow Water Equivalent and Snow Density, Version 1.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GM_Lidar/1

AWS Region

us-west-2
Description

SNEX20_UNM_GPR v1 - This data set contains two-way travel times, snow depth and now water equivalent from a ground penetrating radar survey conducted at Grand Mesa, Colorado. Data were collected between 28 January 2020 and 06 February 2020 as part of the SnowEx 2020 campaign.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_UNM_GPR/1

AWS Region

us-west-2
Description

SNEX20_GIS_REF v1 - This data set contains geolocation information of the infrastructure locations for the SnowEx20 Intensive Observation Period (IOP) and Time Series (TS) campaigns. Available scientific infrastructure locations in this data set are tower and sensor locations, aircraft flight lines, planned and actual snow pit locations, and time-lapse camera locations.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_GIS_REF/1

AWS Region

us-west-2
Description

SNEX20_SD_TLI v1 - This data contains snow depth measurements derived from time-lapse images collected by cameras placed around Grand Mesa, CO at 29 sites coincident with other SnowEx 2020 measurements. The field view of all cameras includes a 3.049 m, (10 ft) vertical pole that was painted red with a yellow top to serve as a reference for quantifying snow depth.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_SD_TLI/1

AWS Region

us-west-2
Description

SNEX20_J_UNM_GPR v1 - This data set contains two-way travel times from a ground penetrating radar survey conducted at Jemez, New Mexico. Data were collected between 12 February 2020 and 04 March 2020 as part of the SnowEx 2020 campaign.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_J_UNM_GPR/1

AWS Region

us-west-2
Description

SNEX20_SSA v1 - This data set contains vertical profiles of snow reflectance, specific surface area (SSA), and spherical equivalent snow grain diameter. Data were collected during the SnowEx 2020 Grand Mesa, Colorado Intensive Observation Period between 27 January and 12 February 2020.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_SSA/1

AWS Region

us-west-2
Description

SNEX20_VPTS_Raw v1 - This data set contains an eight-day time series of vertical temperature profile measurements. Measurements were collected using a thermoprobe to a depth of 30 cm at two site locations.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_VPTS_Raw/1

AWS Region

us-west-2
Description

SNEX20_SB_GST v1 - This data set contains hourly ground surface temperature measurements collected between 20 October 2019 and 18 July 2020. Data were collected at 7 points along two plant monitoring transects in the Upper Basin of the Senator Beck Study Basin.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_SB_GST/1

AWS Region

us-west-2
Description

SNEX20_SMP v1 - This data set contains raw penetration force profiles from the SnowEx 2020 Intensive Observation Period in Grand Mesa, Colorado. Measurements were taken using the SnowMicroPen (SMP), a digital snow penetrometer.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_SMP/1

AWS Region

us-west-2
Description

SNEX20_TS_IB v1 - This data set contains snow change measurements from interval boards collected as part of the NASA SnowEx20 time series field campaign. Surveys were conducted at field sites across the Western United States 9 December 2019 and 22 April 2020.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_TS_IB/1

AWS Region

us-west-2
Description

SNEX20_TS_SP v2 - The data set is a time-series of snow pit measurements obtained by the SnowEx community during the 2020 campaign. Between October 2019 and May 2020, data were collected from 454 snow pits at 12 regional locations throughout California, Colorado, Idaho, New Mexico, and Utah, USA.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_TS_SP/2

AWS Region

us-west-2
Description

SNEX20_TLI v1 - This data set contains sub-daily time-lapse images collected by cameras placed around Grand Mesa, CO at 29 sites coincident with other SnowEx 2020 measurements. The field view of all cameras includes a 3.049 m, (10 ft) vertical pole that was painted red with a yellow top to serve as a reference for quantifying snow depth.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_TLI/1

AWS Region

us-west-2
Description

SNEX20_COCP_SPD v1 - This data set contains the results of ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx20 campaign. Data include two-way travel time, lidar-measured snow depth, derived snow water equivalent, derived snow density, and derived relative permittivity.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_COCP_SPD/1

AWS Region

us-west-2
Description

SNEX20_QSI_DEM v1 - This data set is part of the SnowEx 2021 campaign and provides bare Earth digital elevation models (DEM) acquired by a scanning lidar system at a 0.5 m spatial resolution, and derived from point cloud digital terrain models. DEMs are available for September 2021 and from multiple areas in Colorado, Idaho, and Utah.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_QSI_DEM/1

AWS Region

us-west-2
Description

SNEX20_QSI_DEM_3m v1 - This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides bare Earth digital elevation models (DEM) acquired by a scanning lidar system at a 3.0 m spatial resolution, and derived from point cloud digital terrain models. DEMs are available for September 2021 and from multiple areas in Colorado, Idaho, and Utah.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_QSI_DEM_3m/1

AWS Region

us-west-2
Description

SNEX20_QSI_SD v1 - This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides snow depth values at a 0.5 m spatial resolution, derived from point cloud digital terrain models. Snow depths are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_QSI_SD/1

AWS Region

us-west-2
Description

SNEX20_QSI_SD_3m v1 - This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides snow depth values at a 3.0 m spatial resolution, derived from point cloud digital terrain models. Snow depths are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_QSI_SD_3m/1

AWS Region

us-west-2
Description

SNEX20_QSI_VH v1 - This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides vegetation height values at a 0.5 m spatial resolution, derived from point cloud digital terrain models. Vegetation heights are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_QSI_VH/1

AWS Region

us-west-2
Description

SNEX20_QSI_VH_3m v1 - This data set is part of the SnowEx 2020 and SnowEx 2021 campaigns and provides vegetation height values at a 3.0 m spatial resolution, derived from point cloud digital terrain models. Vegetation heights are available for February 2020 and March 2021 for multiple areas in Colorado, Idaho, and Utah.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX20_QSI_VH_3m/1

AWS Region

us-west-2
Description

SNEX21_BR_GPR v1 - This data set contains two-way travel time data calculated using the results of 1 GHz ground-penetrating radar surveys conducted at Banner Summit, as part of the SNEX21 Time Series campaign in the Boise River Basin, Idaho.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_BR_GPR/1

AWS Region

us-west-2
Description

SNEX21_COCP_GPR_Raw v1 - This data set contains the raw files from ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx21 campaign. Data were collected between 13 January 2021 and 27 May 2021.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_COCP_GPR_Raw/1

AWS Region

us-west-2
Description

SNEX21_COCP_GPR v1 - This data set contains the results of 1 GHz ground-penetrating radar surveys conducted at Cameron Pass, Colorado during the SnowEx21 campaign. Data include two-way travel time, pit-measured snow density, calculated snow depth, and calculated snow water equivalent.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_COCP_GPR/1

AWS Region

us-west-2
Description

SNEX21_CRNS_SWE v1 - These data contain raw and processed hourly observations from a stationary Hydroinnova cosmic ray neutron sensor (CRNS). Data were collected between 22 November 2020 and 08 May 2021 at the SnowEx Prairie site at the Central Agricultural Research Center (CARC) in Moccasin, Montana and represent a footprint area of approximately 171 meters radius around the instrument.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_CRNS_SWE/1

AWS Region

us-west-2
Description

SNEX21_PS_DSM v1 - This dataset includes Digital Surface Models (DSMs) derived from UAV-LiDAR imagery acquired during the SnowEx 2021 field campaign at the Central Agricultural Research Center in central Montana (USA). The DSMs are at 0.3 m resolution and consist of one snow-off and seven snow-on flights.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_PS_DSM/1

AWS Region

us-west-2
Description

SNEX21_PS_MET v1 - This data set contains observations from a meteorological station installed at the Central Agricultural Research Center in Moccasin Montana as part of the NASA SnowEx 2021 Prairie Snow field campaign. Parameters include: air temperature, wind speed and direction, and barometric pressure.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_PS_MET/1

AWS Region

us-west-2
Description

SNEX21_DSM v1 - This data set consists of soil moisture and soil temperature measurements taken during the SnowEx 2021 field campaign. Soil moisture probes were deployed at 9 locations within the Montana Prairie Station study area and monitored soil properties at four different depths (5, 10, 20 and 50 cm).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_DSM/1

AWS Region

us-west-2
Description

SNEX21_SSR v1 - This data set provides apparent surface spectral reflectance imagery which demonstrates snow albedo and snow optical property evolution across two distinct snow-covered environments in Colorado. Data collection occurred in the spring of 2021 as part of the NASA SnowEx mission.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_SSR/1

AWS Region

us-west-2
Description

SNEX21_TS_IB v1 - This data set contains snow change measurements from interval boards collected as part of the NASA SnowEx21 time series field campaign. Surveys were conducted at field sites across the Western United States 18 November 2020 and 12 May 2021.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_TS_IB/1

AWS Region

us-west-2
Description

SNEX21_TS_SD v1 - The data set contains manual snow depth measurements collected as part of the NASA SnowEx 2021 Time Series campaign. Data were collected at five out of seven Time Series study sites: Cameron Pass, Fraser Experimental Forest, and Senator Beck, Colorado; Boise River Basin, Idaho; and the Central Agriculture Research Center (CARC), Montana.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX21_TS_SD/1

AWS Region

us-west-2
Description

SNEX23_Lidar_Raw v1 - This data set provides raw lidar data from two regions of Alaska, USA collected as part of the NASA SnowEx 2023 field campaign. The study sites include a boreal forest environment in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and a coastal tundra environment in the North Slope region of the northern Alaska coastal plain (Arctic coastal plain and Upper Kuparuk Toolik).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_Lidar_Raw/1

AWS Region

us-west-2
Description

SNEX23_Lidar v1 - This data set provides digital terrain models, snow depth, and canopy height, acquired by a scanning lidar system and derived from Point Cloud Digital Terrain Models (PCDTMs) from two regions of Alaska, USA collected as part of the NASA SnowEx 2023 field campaign. The study sites include a boreal forest environment in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and a coastal tundra environment in the North Slope region of the northern Alaska coastal plain (Arctic coastal plain and Upper Kupa...

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_Lidar/1

AWS Region

us-west-2
Description

SNEX23_Apr23_AVIRISNG v1 - This data set contains surface reflectance data collected from three boreal forest study sites (Delta Junction, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) around Fairbanks, Alaska as part of the NASA SnowEx 2023 field campaign. Data was acquired using the NASA Jet Propulsion Laboratory (JPL) Airborne Visible/Infrared Imaging Spectrometer – Next Generation (AVIRIS-NG) sensor mounted on a King Air B-200 aircraft.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_Apr23_AVIRISNG/1

AWS Region

us-west-2
Description

SNEX23_Apr_HyLab v1 - This dataset provides surface spectral reflectance imagery which demonstrates snow albedo and snow optical properties during the NASA SnowEx 2023 field campaign that took place in Alaska between 7 April 2023 and 5 May 2023. Imagery was collected across several snow-covered boreal forest environments on April 20th, 2023, near Fairbanks, Alaska, including Farmers Loop Creamers Field (FLCF), and Caribou Poker Creek Research Watershed (CPCRW).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_Apr_HyLab/1

AWS Region

us-west-2
Description

SNEX23_APR_SP v1 - This data set contains snow pit data collected from 13 snow pits excavated during the NASA SnowEx23 field campaign near Fairbanks, Alaska. The snow pits were located across three field sites: the Caribou/Poker Creek Research Watershed, Farmer’s Loop/Creamers Field, and Delta Junction.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_APR_SP/1

AWS Region

us-west-2
Description

SNEX23_SSI v1 - This data set contains 54 photographs of snow surfaces collected during the NASA SnowEx23 field campaign near Fairbanks, Alaska. Photos were acquired in April and May 2023 at three study sites that represent a range of landcover conditions, including intact boreal forest, recently and historically burned forest, and open meadows.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_SSI/1

AWS Region

us-west-2
Description

SNEX23_Albedo v1 - This data set contains a comprehensive set of field-based measurements of snow surface reflectance and broadband snow albedo collected during the NASA SnowEx 2023 field campaign in interior Alaska. Data were acquired in April and May 2023 across three study sites near Fairbanks, Alaska, selected to represent the dominant boreal landcover types: closed-canopy forests, recently and historically burned forests, and open meadows.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_Albedo/1

AWS Region

us-west-2
Description

SNEX23_BCEF_TLS_Raw v1 - This data set contains unprocessed point cloud data created from terrestrial lidar scans (TLS) collected during the SnowEx 2023 campaign from the Bonanza Creek Experimental Forest near Fairbanks, Alaska. Data were collected in October 2022 (snow-off) and March 2023 (snow-on).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_BCEF_TLS_Raw/1

AWS Region

us-west-2
Description

SNEX23_BCEF_TLS v1 - This data set contains digital terrain models (DTMs) derived from terrestrial lidar scans (TLS) collected as part of the SnowEx 2023 campaign. Data were collected at the Bonanza Creek Experimental Forest near Fairbanks, Alaska in October 2022 (snow-off conditions) and March 2023 (snow-on conditions).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_BCEF_TLS/1

AWS Region

us-west-2
Description

SNEX23_CSU_GPR_Raw v1 - This data set contains the raw results of 1 GHz ground-penetrating radar surveys conducted as part of the NASA SnowEx23 field campaign in Alaska, USA. Surveys were conducted at three different field sites between 07 March 2023 and 16 March 2023: 1) Farmers Loop/Creamers Field, 2) the Bonanza Creek Experimental Forest, and 3) the Caribou/Poker Creek Research Watershed.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_CSU_GPR_Raw/1

AWS Region

us-west-2
Description

SNEX23_CR v1 - This data set contains an inventory of corner reflectors installed in Northern Alaska, USA, as part of the NASA SnowEx 2023 field campaign (Vuyovich et al., 2024). Corner Reflectors (CRs) are objects with known response characteristics used to calibrate or study radar returns from airborne and spaceborne imagery.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_CR/1

AWS Region

us-west-2
Description

SNEX23_CRREL_GPR_Raw v1 - This data set contains the results of 1 GHz ground-penetrating radar surveys conducted at the Upper Kuparuk/Toolik (UKT) site in northern Alaska, USA as part of the NASA SnowEx 2023 field campaign. Data were collected between 08 Mar 2023 to 15 Mar 2023, spatially coinciding with snow pit locations and along transects between snow pits.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_CRREL_GPR_Raw/1

AWS Region

us-west-2
Description

SNEX23_GIS_Ref v1 - This dataset contains geolocation information for ground-based and airborne measurements collected in Alaska, USA as part of the NASA SnowEx 2023 campaign (Vuyovich et al., 2024). The purpose of this compilation is to facilitate the use of SnowEx 2023 Alaska data by providing Geographical Information System (GIS) files in one location.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_GIS_Ref/1

AWS Region

us-west-2
Description

SNEX23_SSA v1 - This data set contains vertical profiles of snow reflectance and specific surface area (SSA) from the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, the Caribou Poker Creek watershed and Farmers Loop/Creamer’s Field), and a coastal tundra environment in the North Slope region of northern Alaska (the Arctic coastal plain and Upper Kuparuk Toolik), collected as part of the NASA SnowEx 2023 field campaign in March 2023. Reflectance was measured in snow pits using three different integrating sphere laser devices: an A2 Photonic Sensor IceCube (1310 nm), an IRIS (Infr...

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_SSA/1

AWS Region

us-west-2
Description

SNEX23_SSA_SO v1 - This data set reports vertical profiles of snow reflectance and specific surface area (SSA) from two study sites in Alaska, USA collected as part of the NASA SnowEx 2023 field campaign. The study sites include a boreal forest environment in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, the Caribou Poker Creek watershed and Farmers Loop/Creamer’s Field), and a coastal tundra environment in the North Slope region of northern Alaska (the Arctic coastal plain and Upper Kuparuk Toolik).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_SSA_SO/1

AWS Region

us-west-2
Description

SNEX23_MAR22_SD v1 - The data set contains snow depth measurements from two regions of Alaska, USA collected during the March 2022 intensive observation period (IOP) as part of the NASA SnowEx 2023 field campaign. The study sites include three boreal forest sites in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and a coastal tundra site in the North Slope region (Arctic coastal plain).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_MAR22_SD/1

AWS Region

us-west-2
Description

SNEX23_MAR23_SD v1 - The data set contains snow depth measurements from five study sites in Alaska, USA; data were collected during the March 2023 intensive observation period (IOP) as part of the NASA SnowEx 2023 field campaign. The study sites include three boreal forest sites in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and two coastal tundra sites in the North Slope region (Arctic coastal plain and Upper Kuparuk Toolik).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_MAR23_SD/1

AWS Region

us-west-2
Description

SNEX23_CSU_GPR v1 - This data set contains the results of 1 GHz ground-penetrating radar surveys conducted as part of the NASA SnowEx23 field campaign in Alaska, USA. Surveys were conducted at three different field sites between 07 March 2023 and 16 March 2023: 1) Farmers Loop/Creamers Field (FLCF), 2) the Bonanza Creek Experimental Forest (BCEF), and 3) the Caribou/Poker Creek Research Watershed (CPCW).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_CSU_GPR/1

AWS Region

us-west-2
Description

SNEX23_MAR23_Profiles v1 - Snow depth profiles were measured from 7-16 March 2023 as part of the NASA SnowEx 2023 March 2023 Intensive Observation Period. Ground-based snow depth profile measurements were taken in the vicinity of 170 snow pits distributed across five study areas in Northern Alaska.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_MAR23_Profiles/1

AWS Region

us-west-2
Description

SNEX23_CBand v1 - This data set contains C-band radar data collected during the NASA SnowEx 2023 Alaska field campaign between 08 March 2023 to 15 March 2023. Data was acquired from two study areas near Fairbanks, Alaska using a multi-polarization radar affixed to sled-mounted tower.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_CBand/1

AWS Region

us-west-2
Description

SNEX23_MAR23_SP v1 - The data set presents snow pit measurements collected during the NASA SnowEx March 2023 Intensive Observation Period (IOP) in Alaska, USA to use for calibration and validation with coincident airborne SWESARR and lidar measurements as part of the strategy focused on snow water equivalence (SWE) and snow depth (HS). In total, 170 snow pits were excavated between the five sites at locations representing a range of snow depth, vegetation, and topographic conditions.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_MAR23_SP/1

AWS Region

us-west-2
Description

SNEX23_OCT22_GSR_Raw v1 - This data set presents photographs of snow pit ground surface collected using a digital camera during the NASA SnowEx 2023 field campaign between 23 and 25 October 2022. The images were collected from 13 snow pits located at the Upper Kuparuk and Toolik (UKT) study site, an arctic tundra environment in Northern Alaska.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_OCT22_GSR_Raw/1

AWS Region

us-west-2
Description

SNEX23_OCT22_GSR v1 - This data set presents ground surface roughness data collected during the NASA SnowEx 2023 field campaign between 23 and 25 October 2022. The data are formatted as point clouds, compiled from images acquired using a digital camera.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_OCT22_GSR/1

AWS Region

us-west-2
Description

SNEX23_Oct22_SP v1 - The data set presents snow pit measurements collected during the NASA SnowEx October 2022 Intensive Observation Period (IOP) in Alaska, USA. In total, 186 snow pits were excavated between the five sites at locations representing a range of snow depth, vegetation, and topographic conditions.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_OCT22_SP/1

AWS Region

us-west-2
Description

SNEX23_OCT22_SSA v1 - This data set reports vertical profiles of snow reflectance and specific surface area (SSA) collected in October 2022 as part of the NASA SnowEx 2023 Alaska field campaign. Measurements were taken from three snow pits located within the Upper Kuparuk Toolik (UKT) field site, a coastal tundra environment in the North Slope region of the northern Alaska coastal plain.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_OCT22_SSA/1

AWS Region

us-west-2
Description

SNEX23_OCT23_GSR_Raw v1 - This data set presents photographs of snow pit ground surface collected using a digital camera during the NASA SnowEx 2023 field campaign between 17 and 28 October 2023. The images were collected from 22 snow pits located across three study sites: Upper Kuparuk and Toolik (UKT), an arctic tundra environment in Northern Alaska, and Caribou Poker Creek watershed (CPCW) and Farmers Loop Creamers Field (FLCF), two boreal forest sites near Fairbanks, Alaska.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_OCT23_GSR_Raw/1

AWS Region

us-west-2
Description

SNEX23_OCT23_GSR v1 - This data set presents ground surface roughness data collected during the NASA SnowEx 2023 field campaign between 17 and 28 October 2023. The data are formatted as point clouds, compiled from images acquired using a digital camera.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_OCT23_GSR/1

AWS Region

us-west-2
Description

SNEX23_SD_TLI v1 - The dataset comprises snow depth measurements extracted from snow poles in time-lapse images near Fairbanks, AK during the SnowEx 2022-2023 field campaign. Snow poles were 1.52 m (5 ft) vertical poles painted red with a 10.16-cm (4 in) yellow top.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_SD_TLI/1

AWS Region

us-west-2
Description

SNEX23_SWE v1 - This data set presents snow depth, snow water equivalent (SWE), and bulk snow density data collected during the NASA SnowEx 2023 field campaign between March 13-16 2023. Samples were collected using an Adirondack snow sampler (SWE tube) from two study sites: Upper Kuparuk and Toolik (UKT), an arctic tundra environment in Northern Alaska, and Farmers Loop Creamers Field (FLCF), a boreal forest near Fairbanks, Alaska.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_SWE/1

AWS Region

us-west-2
Description

SNEX23_Tree_SM v1 - This dataset contains soil sensor measurements collected as part of the SnowEx Alaska 2023 field campaign. Time series measurements occurred at two locations within the Bonanza Creek Experimental Forest (BCEF), Alaska, from sensors inserted into the soil and into a tree.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_Tree_SM/1

AWS Region

us-west-2
Description

SNEX23_TLI v1 - The dataset comprises time-lapse images captured by cameras placed near Fairbanks, AK as part of the NASA SnowEx 2022-2023 field campaign. Nine cameras were installed in the Bonanza Creek Experimental Forest (BCEF) and eight cameras were installed in the Caribou-Poker Creek Research Watershed (CPCW).

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_TLI/1

AWS Region

us-west-2
Description

SNEX23_UW_GPR v1 - This data set contains the results of 1 GHz ground-penetrating radar surveys conducted at the Arctic Coastal Plain (ACP) site and the Upper Kuparuk/Toolik (UKT) site in northern Alaska during the SnowEx23 field campaign. Data include two-way travel time, derived snow depth, and derived snow water equivalent.

Resource type

S3 Bucket Controlled Access

Amazon Resource Name (ARN)

arn:aws:s3:::nsidc-cumulus-prod-protected/SNOWEX/SNEX23_UW_GPR/1

AWS Region

us-west-2