Table · dataset · 2025
MODIS/Terra Surface Reflectance 8-Day L3 Global 250m SIN Grid V006
Listed in NASA Data Portal
Description
The MOD09Q1 Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the MOD09Q1 Version 6.1 data product. The MOD09Q1 Version 6 product provides an estimate of the surface spectral reflectance of Terra Moderate Resolution Imaging Spectroradiometer (MODIS) Bands 1 and 2, corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering.
Provided along with the 250 meter (m) surface reflectance bands are two quality layers. 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.
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When several acquisitions meet the criteria the pixel with the minimum channel 3 (blue) value is used.
Known Issues
* Striping due to a dead detector is noticeable for bands 5, 6, and 7 in scenes acquired February 24 through October 31, 2000. Corrections were implemented to reduce the striping in data acquired after November 1, 2000. Users should always check the band quality for dead detectors even though reflectance values may be in the valid range.
- The Collection 6 MODIS Land Surface Reflectance product (MOD09) may incorrectly flag retrievals as ‘High Aerosol’ over brighter surfaces and at higher view angles. This will impact the downstream MODIS BRDF/Albedo (MCD43) and Vegetation Index (MOD13 and MYD13) data products which use the aerosol quantity flag to screen out high aerosol values.
- Corrections were implemented in Collection 6.1 reprocessing.
- For complete information about known issues please refer to the MODIS/VIIRS Land Quality Assessment website.
Links
Get the data
- Resource doi.org/10.5067/modis/mod09q1.006 ↗
download · DOI / persistent id · from data nasa gov
- Resource earthdata.nasa.gov/centers/lp-daac ↗
download · from data nasa gov
- PDF lpdaac.usgs.gov/documents/306/MOD09_User_Guide_V6.pdf ↗
download · from data nasa gov
- PDF lpdaac.usgs.gov/documents/305/MOD09_ATBD.pdf ↗
download · from data nasa gov
- Resource ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/6/MOD09Q1 ↗
download · from data nasa gov
- Resource modis-land.gsfc.nasa.gov/MODLAND_val.html ↗
download · from data nasa gov
- Resource modis-land.gsfc.nasa.gov/ValStatus.php?ProductID=MOD09 ↗
download · from data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2763297198-LPCLOUD.iso19115 ↗
download · from data nasa gov
- Resource landweb.modaps.eosdis.nasa.gov ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/modis-terra-surface-reflectance-8-day-l3-global-250m-s… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=67f66c38-eff0-4b66-9962-91e04c51b… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Geophysics 69% · Imaging 75%
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 67f66c38-eff0-4b66-9962-91e04c51bb41 | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3706 | enrichment · data nasa gov | taxonomy-embedding@1.0.0 | title+keywords+description (69%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (75%) |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |