Array · collection · 2026
VIIRS/JPSS2 Surface Reflectance Daily L2G Global 1km and 500m SIN Grid NRT
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/viirs/vj209ga_nrt.002
The VJ209GA_NRT is a Near Real Time (NRT) VIIRS/JPSS2 Surface Reflectance Daily L2G Global 1km and 500m SIN Grid product.
Description
The VIIRS surface reflectance products are estimates of surface reflectance in each of the VIIRS reflective bands I1-I3, M1-M5, M7, M8, M10, and M11. The VJ209GA is a Level-2G surface reflectance product produced on a 10km x 10km grid and is composed of all available surface reflectance observations for a given day over a set of tiles with global coverage.
The tile numbering scheme and boundaries are the same as for MODIS. The first set of observations for each data set and grid cell are projected onto a two-dimensional grid and stored as 10km square tiles at 500m and 1 km resolution. Surface reflectance is obtained by adjusting top-of-atmosphere reflectance to compensate for atmospheric effects.
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Corrections are made for the effects of molecular gases, including ozone and water vapor, and for the effects of atmospheric aerosols. The inputs to the surface reflectance algorithm include top-of-atmosphere reflectance for the VIIRS visible bands (VJ202MOD, VJ202IMG), the VIIRS cloud mask and aerosol product , aerosol optical thickness, and atmospheric data obtained from a reanalysis (surface pressure, atmospheric precipitable water, and ozone concentration).
All surface reflectance products are produced for daytime conditions only. The product is produced under all atmospheric conditions except for night and oceans. Pixels when not produced are replaced by fill values in the Level-2 and Level-2G products.
For more information read Suomi-NPP VIIRS Surface Reflectance User's Guide and visit VIIRS Land website
Links
Get the data
- Surface Reflectance Products' User Guide viirsland.gsfc.nasa.gov/PDF/VIIRS_Surf_Refl_UserGuide_v2.0.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C4247026004-LANCEMODIS.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C4247026004-LANCEMODIS ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- nrt3.modaps.eosdis.nasa.gov /archive/allData/5200/VJ209GA_NRT ↗
Direct access to the download site and directory hosting the VJ209GA_NRT data set.
download · from NASA CMR
- Resource earthdata.nasa.gov/data/instruments/viirs/land-near-real-time-data ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/viirs-jpss2-surface-reflectance-daily-l2g-global-1km-a… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/viirs/vj209ga_nrt.002 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4247026004-LANCEMODIS.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=5379a503-3c9c-4a2f-9394-79a59a7b6… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4247026004-LANCEMODIS.html ↗
catalogue entry · from NASA CMR
Topics
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4247026004-LANCEMODIS | 9 d ago | JSON v1 |
| NASA Data Portal | 5379a503-3c9c-4a2f-9394-79a59a7b6adb | 7 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| 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[instrument].gcmd_instrument:viirs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/surface-radiative-properties | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/surface-thermal-properties/land-surface-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:noaa-21 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |