Array · collection · 2020
VIIRS/SNPP Level-2 Water Vapor Products 6-min Swath 750m
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/viirs/watvp_l2_viirs_snpp.001
The Suomi NPP VIIRS Water Vapor Products provide total column water vapor (TPW) properties from merged VIIRS infrared measurements and CrIS plus ATMS water vapor soundings to continue the depiction of global moisture at high spatial resolution started with MODIS on the Terra and Aqua platforms.
Description
While MODIS has two water vapor channels within the 6.5 μm H2O absorption band and four channels within the 15 micrometer CO2 absorption band, VIIRS has no channels in either IR absorption band.
The VNPWATVP algorithm is similar to the MODIS MOD07 synthetic regression algorithm. It uses the three VIIRS longwave IR window bands in a regression relation and adds the NUCAPS (CrIS+ATMS) water vapor product to compensate for the absence of VIIRS water vapor channels. The Level-2 6-minute granule and 750 m spatial resolution VIIRS TPW product file includes the collocated NUCAPS background TPW, the VIIRS-only TPW, and VIIRS+NUCAPS TPW retrievals with quality flags.
Links
Get the data
- Direct access to product's OPeNDAP directory ladsweb.modaps.eosdis.nasa.gov/opendap/allData/5110/WATVP_L2_VIIRS_SNPP/contents.html ↗
metadata API · download · from NASA CMR, data nasa gov
- PDF ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/viirs/SNPPVIIRSWATVP001ATBD2019.pdf ↗
VIIRS/Suomi-NPP Water Vapor Products Algorithm Theoretical Basis Document
documentation · download · from NASA CMR, data nasa gov
- Suomi-NPP VIIRS WATVP Products User Guide ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/viirs/SNPPVIIRSWATVP001UserGuide2019… ↗
documentation · download · from NASA CMR, data nasa gov
- Search and order products from LAADS website. ladsweb.modaps.eosdis.nasa.gov/search/order/2/WATVP_L2_VIIRS_SNPP--5110 ↗
download · from NASA CMR
- Direct access to WATVP_L2_VIIRS_SNPP data set. ladsweb.modaps.eosdis.nasa.gov/archive/allData/5110/WATVP_L2_VIIRS_SNPP ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C1681179895-LAADS ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C1681179895-LAADS.iso19115 ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/viirs-snpp-level-2-water-vapor-products-6-min-swath-75… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/viirs/watvp_l2_viirs_snpp.001 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=9cf16b44-c7ed-4cd6-901d-ecfdd86e1… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1681179895-LAADS.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1681179895-LAADS.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Water Vapor · Humidity · Suomi-NPP · Total Precipitable Water · Visible-Infrared Imager-Radiometer Suite · Water Vapor · Water Vapor Indicators · Water Vapor Profiles
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Atmospheric sciences 68%
Provenance · 2 source records, 23 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1681179895-LAADS | 15 d ago | JSON v1 |
| NASA Data Portal | 9cf16b44-c7ed-4cd6-901d-ecfdd86e1b29 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3701 | 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/atmosphere/atmospheric-water-vapor | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-indicators | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-indicators/humidity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-indicators/total-precipitable-water | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-indicators/water-vapor | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-profiles | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:suomi-npp | 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 · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |