NOAA CDR OISST: Optimum Interpolation Sea Surface Temperature (NOAA/CDR/OISST/V2)

Version V2

The NOAA 1/4 degree daily Optimum Interpolation Sea Surface Temperature
(OISST) provides complete ocean temperature fields constructed by combining
bias-adjusted observations from different platforms (satellite, ships,
buoys) on a regular global grid, with gaps filled in by interpolation.
Satellite data from the Advanced Very High Resolution Radiometer (AVHRR)
provides the main input which permits the high temporal-spatial coverage
beginning in late 1981 to the present.

The OISST dataset has a single day’s data processed twice. First a near
real-time preliminary version is released with a lag of 1 day, and a final
version with a lag of 14 days. The final version uses extra days for
smoothing, and zonal bias correction in addition to replacing the
preliminary version.

NameDescriptionGee UnitGee Scale
sstDaily sea surface temperature°C 0.01
anomTemperature anomaly; the daily OISST minus a 30-year climatological mean.°C 0.01
iceSeven-day median of daily sea ice concentrations.%0.01
errEstimated error; standard deviation of analyzed sea surface temperature.°C 0.01


NOAA (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.0
Keywords avhrr, cdr, daily, ice, noaa, ocean, oisst, real-time, sst, temperature
License proprietary
Temporal Extent 8/31/1981, 5:00:00 PM - now
Citation Richard W. Reynolds, Viva F. Banzon, and NOAA CDR Program (2008): NOAA Optimum Interpolation 1/4 Degree Daily Sea Surface Temperature (OISST) Analysis, Version 2. [indicate subset used]. NOAA National Centers for Environmental Information. [doi:10.7289/V5SQ8XB5]( [access date].
Type image_collection
GSD arc degreesm
Cadence day
Asset schema {"name":"status","description":"'provisional' or 'permanent'\n","type":"STRING"}