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Sea-surface temperature

noaa:coastwatch-sst · Released · Included since usdata 0.5.

CoastWatch Blended Sea Surface Temperature.

At a glance

  • Files: CSV with units row
  • Selection: Grid centers and timestamps inside the requested bounds; optional stride
  • Required inputs: BBox or location, and both timestamps
  • Open locally: usdata[pandas] · Reader guide
  • Examples: sst analysis

Usage and limitations

Available since v0.5. The verified dataset is noaacwBLENDEDsstDNDaily, a daily blended day/night SST analysis on (time, latitude, longitude). Latitude has 3,600 centers from -89.975 to 89.975; longitude has 7,200 from -179.975 to 179.975, both spaced 0.05 degrees. The time axis starts at 2019-07-22T12:00:00Z and has gaps; the adapter reads actual available timestamps. Its metadata describes data use as free and open under the GHRSST protocol.

Variable Meaning Units
analysed_sst (default) Sea surface temperature degree_C
analysis_error Estimated analysis error degree_C
sea_ice_fraction Sea ice fraction 1
mask Source mask flags Byte codes; consult source metadata

Require a bbox/location and both timestamps. Bounds include only grid centers and timestamps inside the requested interval; an interval with no matching coordinates returns no assets. UTC bounds are inclusive. A date-only end means midnight at the start of that date, before the noon analysis. params.stride (or -p stride=2) subsamples both spatial axes with a positive integer. Reduce the area/time window or increase stride when a query exceeds 1,000,000 rows. Unknown parameters and variables fail explicitly.

The asset is raw CSV with coordinate columns, a header, and a second row of units. This avoids the volatile per-request history timestamps observed in NetCDF responses; see ADR 0004. Upstream revisions still cause checksum mismatches during locked restoration.

See the service research notes for dated upstream probes.

All NOAA datasets.

Catalog reference.

Catalog reference

  • Availability: since 0.5
  • Domain: Satellite oceanography
  • Geographic bounds (WGS84): west -179.975°, south -89.975°, east 179.975°, north 89.975°
  • Catalog date range: 2019-07-22 to open-ended
  • Coverage varies by station, product, and date; the range above does not guarantee observations.
  • Upstream documentation
  • License: GHRSST free and open data
  • Transport: erddap
  • Adapter: usdata.providers.noaa.coastwatch:CoastwatchSst

All NOAA datasets.