Array · dataset · 2025
VIIRS/NPP Land Surface Temperature and Emissivity 6-Min L2 Swath 750m V001
Listed in NASA Data Portal
The NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Land Surface Temperature and Emissivity (LST&E) Version 1 swath product (VNP21) is produced daily in 6-minute temporal increments of satellite acquisition.
Description
The VNP21 product uses a physics-based algorithm to dynamically retrieve both the LST and emissivity simultaneously for VIIRS thermal infrared bands M14 (8.55 µm), M15 (10.76 µm), and M16 (12 µm) at a spatial resolution of 750 meters.
The VNP21 product is developed synergistically with the Moderate Resolution Imaging Spectroradiometer (MODIS) LST&E Version 6 product (MOD21) (doi.org/10.5067/MODIS/MOD21.006) using the same input atmospheric products and algorithmic approach based on the ASTER Temperature Emissivity Separation (TES) technique. The TES algorithm is combined with an improved Water Vapor Scaling (WVS) atmospheric correction scheme to stabilize the retrieval during very warm and humid conditions.
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The overall objective for NASA VIIRS products is to ensure the algorithms and products are compatible with the MODIS Terra and Aqua algorithms to promote the continuity of the Earth Observation System (EOS) mission. VIIRS LST&E products are available two months after acquisition due to latency of data inputs. Additional details regarding the method used to create this Level 2 (L2) product are available in the Algorithm Theoretical Basis Document (ATBD) (lpdaac.usgs.gov/documents/1332/VNP21_ATBD_V1.pdf).
Provided in the VNP21 product are layers for LST, quality control, emissivity for bands M14, M15, and M16, LST&E errors, view angle, ASTER Global Emissivity Dataset (GED), Precipitable Water Vapor (PWV), ocean-land mask, latitude, and longitude. A low-resolution browse image for LST is also available for each VNP21 granule.
Links
Get the data
- Google Scholar search results scholar.google.com/scholar?q=10.5067%2FVIIRS%2FVNP21.001 ↗
download · from data nasa gov
- This dataset's landing page doi.org/10.5067/viirs/vnp21.001 ↗
download · from data nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search?q=C1407099493-LPDAAC_ECS ↗
download · from data nasa gov
- The dataset's project home page lpdaac.usgs.gov ↗
download · from data nasa gov
- View this dataset's user's guide lpdaac.usgs.gov/documents/429/VNP21_User_Guide_V1.pdf ↗
download · from data nasa gov
- lpdaac.usgs.gov /documents/1332/VNP21_ATBD_V1.pdf ↗
View this dataset's algorithm theoretical basis document
download · from data nasa gov
- viirsland.gsfc.nasa.gov /Val/LST_Val.html ↗
View this dataset's science data product validation documentation
download · from data nasa gov
- viirsland.gsfc.nasa.gov /Val_overview.html ↗
View this dataset's science data product validation documentation
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/viirs-npp-land-surface-temperature-and-emissivity-6-mi… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=df439adf-0e2c-47b7-98cf-b3d141482… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Earth & Environmental Science
- Inferred from text
- Image 75% · Imaging 75% · Satellite remote sensing 65%
Related
- Possibly the same asVIIRS/NPP Land Surface Temperature and Emissivity 6-Min L2 Swath 750m V001
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | df439adf-0e2c-47b7-98cf-b3d141482868 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | vocabulary-mapper@1.0.0 | keywords['earth-science'] |
| concepts[modality].local:modality:image | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:imaging | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:remote-sensing | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (65%) |
| 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 |