NASA INTEXB Project

Description

INTEX-NA is a two phase experiment that aims to understand the transport and transformation of gases and aerosols on transcontinental/intercontinental scales and assess their impact on air quality and climate. The primary constituents of interest are ozone and precursors, aerosols and precursors, and the long-lived greenhouse gases. The first phase (INTEX-A) was completed in the summer of 2004 and the second phase (INTEX-B) is to be performed in the spring of 2006. This document is intended to provide an update on the goals of INTEX-B and define its implementation strategy. The scientific goals envisioned here are based on the joint implementation of INTEX-B, MIRAGE-Mex and DLR/IMPACT studies and their coordination with satellite observations. In collaboration with these partners, the main goals of INTEX-B are to:- Quantify the transpacific transport and evolution of Asian pollution to North America and assess its implications for regional air quality and climate; - Quantify the outflow and evolution of gases and aerosols from the Mexico City Megaplex; - Investigate the transport of Asian and North America pollution to the eastern Atlantic and assess its implications for European air quality; - Validate and refine satellite observations of tropospheric composition; - Map emissions of trace gases and aerosols and relate atmospheric composition to sources and sinks.The INTEX-B field study is to be performed during an approximate 8-week period from March 1 to April 30, 2006.

IXBMIGEO

IXBMIGEO_2 is the Multi-angle Imaging SpectroRadiometer (MISR) Geometric Parameters subset for the INTEX-B region version 2. It contains the Geometric Parameters that measure the sun and view angles at the reference ellipsoid for the region covered by the INTEXB_2006 theme. MISR is designed to view Earth with cameras in 9 different directions. As the instrument flies overhead, all nine cameras successfully imaged each piece of Earth's surface below in 4 wavelengths (blue, green, red, and near-infrared). MISR aims to improve our understanding of the effects of sunlight on Earth and distinguish different types of clouds, particles, and surfaces. Specifically, MISR monitors the monthly, seasonal, and long-term trends in three areas: 1) amount and type of atmospheric particles (aerosols), including those formed by natural sources and by human activities; 2) amounts, types, and heights of clouds, and 3) distribution of land surface cover, including vegetation canopy structure.

IXBMIB2E

IXBMIB2E_3 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 1B2 Ellipsoid Product subset for the INTEX-B region V003. It contains Ellipsoid-projected TOA Radiance, resampled at the surface and topographically corrected and geometrically corrected by PGE22 for the region covered by the INTEXB_2006 theme. MISR is designed to view Earth with cameras in 9 different directions. As the instrument flies overhead, all nine cameras successfully imaged each piece of Earth's surface below in 4 wavelengths (blue, green, red, and near-infrared). MISR aims to improve our understanding of the effects of sunlight on Earth and distinguish different types of clouds, particles, and surfaces. Specifically, MISR monitors the monthly, seasonal, and long-term trends in three areas: 1) amount and type of atmospheric particles (aerosols), including those formed by natural sources and by human activities; 2) amounts, types, and heights of clouds, and 3) distribution of land surface cover, including vegetation canopy structure.

IXBMIB2T

IXBMIB2T_3 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 1B2 Terrain Product subset for the INTEX-B region version 3. It contains Terrain-projected TOA Radiance, resampled at the surface and topographically corrected, and geometrically corrected by PGE22 for the region covered by the INTEXB_2006 theme. MISR is designed to view Earth with cameras in 9 different directions. As the instrument flies overhead, all nine cameras successfully imaged each piece of Earth's surface below in 4 wavelengths (blue, green, red, and near-infrared). MISR aims to improve our understanding of the effects of sunlight on Earth and distinguish different types of clouds, particles, and surfaces. Specifically, MISR monitors the monthly, seasonal, and long-term trends in three areas: 1) amount and type of atmospheric particles (aerosols), including those formed by natural sources and by human activities; 2) amounts, types, and heights of clouds, and 3) distribution of land surface cover, including vegetation canopy structure.

IXBMI2AE

MISR Level 2 Aerosol Product containing aerosol optical depth and particle type, with associated atmospheric data for the INTEXB_2006 theme.

IXBMI2LS

IXBMI2LS_002 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 2 Land Surface Product subset for the INTEX-B region. It contains information on land directional reflectance properties, albedos(spectral and PAR integrated), FPAR, associated radiation parameters, and terrain-referenced geometric parameters for the region covered by the INTEXB_2006 theme. The MISR instrument consists of nine push-broom cameras that measure radiance in four spectral bands. Global coverage is achieved in nine days. The cameras are arranged with one camera pointing toward the nadir, four forward, and four aftward. It takes seven minutes for all nine cameras to view the same surface location. The view angles relative to the surface reference ellipsoid are 0, 26.1, 45.6, 60.0, and 70.5 degrees. The spectral band shapes are nominally Gaussian, centered at 443, 555, 670, and 865 nm.

IXBMI2ST

IXBMI2ST_2 is the Multi-angle Imaging SpectroRadiometer (MISR) L2 TOA/Cloud Stereo Product subset for the INTEX-B region V002. It contains the Stereoscopically Derived Cloud Mask (SDCM), cloud winds, and Reflecting Level Reference Altitude (RLRA), with associated data for the region covered by the INTEXB_2006 theme. MISR is designed to view Earth with cameras in 9 different directions. As the instrument flies overhead, all nine cameras successfully imaged each piece of Earth's surface below in 4 wavelengths (blue, green, red, and near-infrared). MISR aims to improve our understanding of the effects of sunlight on Earth and distinguish different types of clouds, particles, and surfaces. Specifically, MISR monitors the monthly, seasonal, and long-term trends in three areas: 1) amount and type of atmospheric particles (aerosols), including those formed by natural sources and by human activities; 2) amounts, types, and heights of clouds, and 3) distribution of land surface cover, including vegetation canopy structure.

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License

Creative Commons BY 4.0

Documentation

https://cloud1.arc.nasa.gov/intex-b/

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Contact

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How to Cite

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