Array · collection · 2024
NOAA-20 VIIRS Level-2 Regional 11µm Datime Sea Surface Temperature(SST) - Near Real-time (NRT) Data, version 2024.0
Listed in NASA Earthdata CMR
The Ocean Biology DAAC produces near real-time (NRT) products using the best-available combination of ancillary data from meteorological and ozone data.
Description
As such, the inputs and the calibration used are less than optimal. Near real-time products provide a snapshot of the data during a short time period within a single orbit.
SST provides global sea surface temperature derived primarily from thermal infrared observations during daytime. Users apply SST to detect fronts and eddies, monitor marine heatwaves, drive ecosystem and habitat models (when paired with chlor_a, Kd_490, PAR), and provide boundary conditions for biogeochemical and climate analyses. Note that IR-based SST is sensitive to clouds, aerosols, and diurnal warming; for minimum diurnal effects, pair with NSST (nighttime SST) and refer to per-file flags before analysis.
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Geophysical variables in this suite include: - bias_sst — Sea Surface Temperature bias (°C) - flags_sst — Product-specific flags, Sea Surface Temperature (integer bitmask) - l2_flags — Level-2 Processing Flags (integer bitmask; see bit definitions) - qual_sst — Quality levels for Sea Surface Temperature (integer quality flag) - sst — Sea Surface Temperature (°C) - sstref — Sea Surface Temperature reference (°C) - stdv_sst — Sea Surface Temperature standard deviation (°C)
Links
Get the data
Documentation and papers
- NOAA-20 Homepage earthdata.nasa.gov/data/platforms/space-based-platforms/NOAA-20 ↗
documentation · from NASA CMR
- nasa.github.io /oceandata-notebooks ↗
Satellite data procesing can be difficult. We're here to help! Visit the Oceandata Help Hub to navigate learning content for accessing visualizing, and analyzing data products.
documentation · from NASA CMR
- oceancolor.gsfc.nasa.gov /files/atbd/legacy/atbd-obdaac-long-wave-sea-surface-temperatur… ↗
Algorithm Theoretical Basis Document for 11µm Datime Sea Surface Temperature(SST) - Near Real-time (NRT)
documentation · from NASA CMR
- VIIRS Homepage earthdata.nasa.gov/data/instruments/VIIRS ↗
documentation · from NASA CMR
- View the version history of this product. oceancolor.gsfc.nasa.gov/data/reprocessing ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3166805767-OB_DAAC.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3166805767-OB_DAAC.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- National Oceanic & Atmospheric Administration-20 · Sea Surface Temperature · Visible-Infrared Imager-Radiometer Suite
- Inferred from text
- Oceanography 70%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3166805767-OB_DAAC | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3708 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| 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 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:noaa-20 | 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 |
| 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 |