MODIS/Terra Surface Reflectance 8-Day L3 Global 500m SIN Grid V061

The Moderate Resolution Imaging Spectroradiometer (MODIS) Terra MOD09A1 Version 6.1 product provides an estimate of the surface spectral reflectance of Terra MODIS Bands 1 through 7 corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the seven 500 meter (m) reflectance bands are two quality layers and four observation bands. For each pixel, a value is selected from all the acquisitions within the 8-day composite period. The criteria for the pixel choice include cloud and solar zenith. When several acquisitions meet the criteria the pixel with the minimum channel 3 (blue) value is used. Known Issues * For complete information about known issues please refer to the MODIS/VIIRS Land Quality Assessment website. Improvements/Changes from Previous Versions * 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).

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 6, 2026, 20:43 (UTC)
Created April 1, 2025, 17:44 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id d2ca0373-ba89-4821-9077-c2c10244a17e
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/MODIS/MOD09A1.061
license https://www.usa.gov/government-works
modified 2026-03-30T22:16:01Z
programCode {026:000}
publisher LP DAAC;NASA/GSFC/SED/ESD/TISL/MODAPS
resource-type Dataset
source_datajson_identifier true
source_hash 6466e1fad035572401fa05d5625a0e4b3fbf1d4435d191149322264b482a3d6e
source_schema_version 1.1
spatial ["CARTESIAN",[{"NorthBoundingCoordinate":90,"WestBoundingCoordinate":-180,"EastBoundingCoordinate":180,"SouthBoundingCoordinate":-90}]]
temporal 2000-02-18/2026-03-30
theme {"Earth Science"}