Array · collection · 2026
VIIRS/JPSS2 Surface Reflectance Daily L3 Global 0.05 Deg CMG NRT
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/viirs/vj209cmg_nrt.002
The VJ209CMG_NRT is a Near Real Time (NRT) daily surface reflectance Climate Modeling Grid Version 2 product which provides an estimate of land surface reflectance from the NOAA-21 (previously called JPSS2) Visible Infrared Imager Radiometer Suite (VIIRS) sensor.
Description
Data are provided for three imagery bands (I1-I3) and nine moderate resolution bands (M1-M5, M7, M8, M10, M11) at 0.05 degree (~5,600 meter) resolution. The data are corrected for atmospheric conditions such as the effects of molecular gases, including ozone and water vapor, and for the effects of atmospheric aerosols.
This product uses a weighted average of the best quality observation and is formatted as a CMG for use in climate simulation models. This product includes the twelve reflectance bands, five moderate resolution brightness temperature bands (M12-M16) and information layers representing relative azimuth angle, sensor zenith angle, solar zenith angle, reflectance band quality, time of day, and number mapping. 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 VIIRS Surface Reflectance User's Guide and visit VIIRS Land ebsite.
Links
Get the data
- surface reflectance product's 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/C4231443668-LANCEMODIS.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C4231443668-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/VJ209CMG_NRT ↗
Direct access to the download site and directory hosting the VJ209CMG_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-l3-global-0-05-d… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/viirs/vj209cmg_nrt.002 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4231443668-LANCEMODIS.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=dc656f02-7e24-4969-a210-e54b6e0bc… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4231443668-LANCEMODIS.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Joint Polar Satellite System - 2 · Land Surface Temperature · Surface Radiative Properties · Visible-Infrared Imager-Radiometer Suite
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Climate model simulation 65% · Geophysics 68% · Simulation 75%
Provenance · 2 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4231443668-LANCEMODIS | 10 d ago | JSON v1 |
| NASA Data Portal | dc656f02-7e24-4969-a210-e54b6e0bc3d5 | 7 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3706 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (68%) |
| 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[method].local:method:climate-model | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[method].local:method:simulation | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| 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 |