A Group for High Resolution Sea Surface Temperature (GHRSST): UKM-OSTIA Level 4 GDS2 Version 2

UKMO/OSTIA GHRSST Level 4 ~5km (1/20 degree)

A Group for High Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature analysis produced daily on an operational basis at the UK Met Office using optimal interpolation (OI) on a global 0.054 degree grid. The Operational Sea Surface Temperature and Sea Ice Analysis (OSTIA) analysis uses satellite data from sensors that include the Advanced Very High Resolution Radiometer (AVHRR), the Spinning Enhanced Visible and Infrared Imager (SEVIRI), the Geostationary Operational Environmental Satellite (GOES) imager, the Infrared Atmospheric Sounding Interferometer (IASI), the Tropical Rainfall Measuring Mission Microwave Imager (TMI) and in situ data from ships, drifting and moored buoys. This analysis was specifically produced to be used as a lower boundary condition in Numerical Weather Prediction (NWP) models. This dataset adheres to the GHRSST Data Processing Specification (GDS) version 2 format specifications.
L4 -- Level 4 Analyzed SST (Fundation SST) Data sets created from the analysis of lower level data that results in gridded, gapfree products. SST data generated from multiple sources of satellite data using optimal interpolation are an example of L4 GHRSST products.

Please abide by their data use policy.

Sea Surface Temperature [degC], estimated error std. dev. of analysed_sst [degC], sea ice fraction [1], sea/land/lake/ice field composite mask
Zonal179.975W to 179.975E by 0.05 deg
Meridional-89.975 to 89.975N by 0.05 deg
Temporal April 25, 2013 to (present - 2 days) by 1 day(s)
Server public:
Acquired July 18, 2019 (Updates Daily)
APDRC contact
SupplementsGHRSST GDS20r5.pdf