Description
The MYD09GA Version 6.1 product provides an estimate of the surface spectral reflectance of Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Bands 1 through 7, corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Provided along with the 500 meter (m) surface reflectance, observation, and quality bands are a set of ten 1 kilometer observation bands and geolocation flags. The reflectance layers from the MYD09GA are used as the source data for many of the MODIS land products. Known Issues
- Prior to the Aqua MODIS launch, Band 6 exhibited several anomalous detectors. Band 6 performance degraded seriously after launch and presently a majority of the Band 6 detectors are non-functional. Science users should read and use the non-functional detector flags and decide for themselves the optimum manner to handle non-functional detector "gaps" for their products. For complete information please refer to the MODIS Characterization Support Team (MCST) website.
- For complete information about known issues please refer to the MODIS/VIIRS Land Quality Assessment website.
Improvments/Changes from Previous Version
- The Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 - 2017.
- A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).
Read our doc on how to get AWS Credentials to retrieve this data: https://data.lpdaac.earthdatacloud.nasa.gov/s3credentialsREADME
Update Frequency
From 2002-07-04 to Ongoing (Daily - < Weekly)
License
Creative Commons BY 4.0
Documentation
https://doi.org/10.5067/MODIS/MYD09GA.061
Managed By
See all datasets managed by NASA.
Contact
User Services: lpdaac@usgs.gov
How to Cite
MODIS/Aqua Surface Reflectance Daily L2G Global 1km and 500m SIN Grid V061 was accessed on DATE from https://registry.opendata.aws/nasa-myd09ga.
Usage Examples
Tutorials
