MODIS/Aqua Near Real Time (NRT) Surface Reflectance Daily L2G Global 500m SIN Grid

The MODIS Near Real Time (NRT) Surface Reflectance Daily L2G Global 500m SIN Grid product, MYD09GHK, is a seven-band product computed from the MODIS Level 1B land Bands 1-7. The product is an estimate of the surface spectral reflectance for each band as it would have been measured at ground level if there were no atmospheric scattering or absorption. The correction scheme includes corrections for the effect of atmospheric gases, aerosols, and thin cirrus clouds; it is applied to all Level 1B pixels that pass the Level 1B quality control. The correction uses Band 26 to detect cirrus clouds, the approach used in MYD04 and MYD05 for water vapor, aerosol correction, and NCEP for ozone; the best available climatology data are used if the MODIS water vapor, aerosol, or ozone products are unavailable.The Level 2G surface reflectance product is the input for the generation of several land products: 8-day Surface Reflectance, Vegetation Indices (VIs), Bidirectional Reflectance Distribution Function (BRDF), thermal anomaly, snow/ice, and Fraction of Photosynthetically Active Radiation/Leaf Area Index (FPAR/LAI).

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated May 11, 2026, 21:12 (UTC)
Created May 19, 2025, 04:06 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 8578e017-1283-4c72-83b8-ff91efcd3572
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/MODIS/MYD09GHK.NRT.006
license https://www.usa.gov/government-works
modified 2026-05-04T22:16:00Z
programCode {026:000}
publisher NASA/GSFC/EOS/ESDIS/LANCEMODIS
resource-type Dataset
source_datajson_identifier true
source_hash fc99015f349fe1e9a0598f437ba372ea62e57d309333ef7b044cc274db9e7af9
source_schema_version 1.1
spatial ["CARTESIAN",[{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":60.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-80.0}]]
temporal 2015-12-06/2026-05-04
theme {"Earth Science"}