Array · collection · 2023
GHRSST Level 2P NOAA ACSPO SST v2.80 from VIIRS on NOAA-21 Satellite
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/ghn21-2p280
The N21-VIIRS-L2P-ACSPO-v2.80 dataset produced by the NOAA ACSPO system derives the Subskin Sea Surface Temperature (SST) from the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the The Joint Polar Satellite System (JPSS)-2 satellite, renamed as NOAA-21 (N21).
Description
N21 was launched on Nov. 10, 2022, the 3rd satellite in the US NOAA latest JPSS series. VIIRS L2P SST products are derived at the native sensor resolution (~0.75 km at nadir, ~1.5 km at swath edge) using NOAA's Advanced Clear-Sky Processor for Ocean (ACSPO) system (Jonasson et al. 2022).
Data are reported in 10-minute granules in netCDF4 format, compliant with the Group for High Resolution Sea Surface Temperature (GHRSST) Data Specification version 2 (GDS2). The ACSPO N21 VIIRS SST record is available back to 19 Mar 2023. In ACSPO products, SSTs are derived using the Non-Linear SST (NLSST) algorithms (Petrenko et al., 2014).
Read the rest (2 more)
An ACSPO clear-sky mask (ACSM) is provided in each pixel as part of variable l2p_flags, which also includes day/night, land, ice, twilight, and glint flags (Petrenko et al., 2010). Only ACSM confidently clear pixels with quality level QL=5 are recommended. Per GDS2 specifications, two additional Sensor-Specific Error Statistics layers (SSES bias and standard deviation) are reported in each pixel with QL=5.
The ACSPO VIIRS L2P product is monitored and validated against quality controlled in situ data provided by NOAA in situ SST Quality Monitor system (iQuam) using another NOAA system, SST Quality Monitor (SQUAM). A reduced size (0.5GB/day), equal-angle gridded (0.02-deg resolution), ACSPO N21 VIIRS L3U product is also available (10.5067/GHV21-3U280) (Ignatov et al., 2017).
Links
Get the data
- Resource opendap.earthdata.nasa.gov ↗
This dataset can be accessed with the Open-source Project for a Network Data Access Protocol (OPeNDAP) API framework. This service enables variable and dimensional subsetting. The URL redirects to a p
metadata API · download · from NASA CMR, data nasa gov
- GHRSST Global Data Assembly Center ghrsst.jpl.nasa.gov ↗
documentation · download · from NASA CMR, data nasa gov
- Generic Data Readers github.com/podaac/data-readers ↗
documentation · download · from NASA CMR, data nasa gov
- SST Quality Monitor (SQUAM) star.nesdis.noaa.gov/sod/sst/squam ↗
documentation · download · from NASA CMR, data nasa gov
- GHRSST Project ghrsst.org ↗
documentation · download · from NASA CMR, data nasa gov
- Sea Surface Temperature measurement description podaac.jpl.nasa.gov/forum/viewtopic.php?f=7&t=298 ↗
documentation · download · from NASA CMR, data nasa gov
- Resource doi.org/10.1117/1.jrs.11.032405 ↗
A. Ignatov, I. Gladkova, Y. Ding, F. Shahriar, Y. Kihai, X. Zhou. 2017. JPSS VIIRS level 3 uncollated sea surface temperature product at NOAA
documentation · download · from NASA CMR, data nasa gov
- Data Use and Citation Guidelines podaac.jpl.nasa.gov/CitingPODAAC ↗
documentation · download · from NASA CMR, data nasa gov
- GHRSST Data User Guide archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/ghrsst/open/docs/GDS20r5.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- In situ SST Quality Monitor (iQuam) star.nesdis.noaa.gov/sod/sst/iquam ↗
documentation · download · from NASA CMR, data nasa gov
- Resource star.nesdis.noaa.gov/sod/sst/micros ↗
Monitoring of IR Clear-sky Radiances over Oceans for SST
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2754895884-POCLOUD.iso19115 ↗
download · from data nasa gov
- Resource harmony.earthdata.nasa.gov ↗
download · from data nasa gov
- github.com /podaac/data-subscriber ↗
This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command lin
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2754895884-POCLOUD ↗
Browse granule search results in Earthdata Search
download · from NASA CMR
- HTTPS endpoint for data browse and download cmr.earthdata.nasa.gov/virtual-directory/collections/C2754895884-POCLOUD ↗
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/ghrsst-level-2p-noaa-acspo-sst-v2-80-from-viirs-on-noa… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/ghn21-2p280 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=51cec456-abda-48bc-88fd-dcab95a4f… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2754895884-POCLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2754895884-POCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Joint Polar Satellite System - 2 · Sea Surface Skin Temperature · Visible-Infrared Imager-Radiometer Suite
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Imaging 75%
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2754895884-POCLOUD | 12 d ago | JSON v1 |
| NASA Data Portal | 51cec456-abda-48bc-88fd-dcab95a4fff0 | 9 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/oceans/ocean-temperature/sea-surface-temperature/sea-surface-skin-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:imaging | 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 · data nasa gov | connector:data_nasa_gov@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 |