Skip to main content
U.S. flag

An official website of the United States government

GHRSST Level 4 OSTIA Global Foundation Sea Surface Temperature Analysis (GDS version 2)

Published by NASA/JPL/PODAAC;UK/MOD/MET | National Aeronautics and Space Administration | Catalog Last Checked: September 01, 2026 at 11:13 PM | Dataset Last Updated: September 01, 2026
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 0.05x0.05 degree grid. The Operational Sea Surface Temperature and Sea Ice Analysis (OSTIA) analysis uses satellite data from over 10 unique 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 and is updated daily with 24-hours nominal latency in a Near Real Time (NRT) mode. UKMO also produces the higher quality reprocessed OSTIA L4 SST using more sensors and data with a biannual latency (https://podaac.jpl.nasa.gov/dataset/OSTIA-UKMO-L4-GLOB-REP-v2.0).

Resources

11 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "Earthdata Forum",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:earthdata-support@nasa.gov"
}
description 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 0.05x0.05 degree grid. The Operational Sea Surface Temperature and Sea Ice Analysis (OSTIA) analysis uses satellite data from over 10 unique 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 and is updated daily with 24-hours nominal latency in a Near Real Time (NRT) mode. UKMO also produces the higher quality reprocessed OSTIA L4 SST using more sensors and data with a biannual latency (https://podaac.jpl.nasa.gov/dataset/OSTIA-UKMO-L4-GLOB-REP-v2.0).
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Original Metadata",
    "format": "ISO",
    "mediaType": "text/xml",
    "conformsTo": "http://www.isotc211.org/2005/gmi",
    "description": "The metadata's original source.",
    "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C2036877535-POCLOUD.iso19115"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/ghrsst/open/docs/GDS20r5.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2036877535-POCLOUD"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://ghrsst.jpl.nasa.gov"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://github.com/podaac/data-readers"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://github.com/podaac/data-subscriber"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://harmony.earthdata.nasa.gov/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://opendap.earthdata.nasa.gov"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://podaac.jpl.nasa.gov/CitingPODAAC"
  },
  {
    "@type": "dcat:Distribution",
    "format": "JPEG",
    "mediaType": "image/jpeg",
    "downloadURL": "https://podaac.jpl.nasa.gov/Podaac/thumbnails/OSTIA-UKMO-L4-GLOB-v2.0.jpg"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C2036877535-POCLOUD"
  }
]
identifier 10.5067/GHOST-4FK02
keyword 
[
  "earth-science-ocean-temperature-oceans-sea-surface-temperature",
  "earth-science-sea-ice-oceans-sea-ice-concentration"
]
license https://www.usa.gov/government-works
modified 2026-09-01
programCode 
[
  "026:000"
]
publisher 
{
  "name": "NASA/JPL/PODAAC;UK/MOD/MET",
  "@type": "org:Organization"
}
spatial 
"["CARTESIAN", [{"WestBoundingCoordinate": -180.0, "SouthBoundingCoordinate": -90, "EastBoundingCoordinate": 180.0, "NorthBoundingCoordinate": 90}]]"
theme 
[
  "Earth Science"
]
title GHRSST Level 4 OSTIA Global Foundation Sea Surface Temperature Analysis (GDS version 2)

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov