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OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 29, 2026 at 11:03 PM | Dataset Last Updated: January 07, 2022 at 12:00 AM
This collection contains the Ocean Surface Topography Mission (OSTM)/Jason-2 Level-2 Geophysical Data Records (GDR) data files. The level-2 X-GDR are available as 3 datatypes: Operational Geophysical Data Records (OGDR), Interim Geophysical Data Records (IGDR) and final Geophysical Data Records (GDR). The OGDRs are near-real-time records and are generated every 3-5 hours. They are based on orbits from DORIS propagator and forecast meteorological fields for the geophysical corrections. The IGDRs are based on preliminary DORIS ephemeris, analyzed meteorological grids, and preliminary auxiliary data files. The IGDRs have a latency of 1 - 2 days. The S-IGDR is a superset of the IGDR, containing the original radar echo "waveform" data. The GDRs are based on final high-precision DORIS (perhaps combined with GPS) ephemeris, final meteorological grids, ancillary and auxiliary data files. The S-GDR is a superset of the GDR, containing the waveform data. The S-GDRs are generated every 10 days. Sea Surface Height Anomaly (SSHA) files are available for IGDR and GDR. All files are available in NetCDF format and the OGDRs are also available in BUFR format.

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  • FTP

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  • HTTPS

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  • THREDDS

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  • Order

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  • NCEI Dataset Landing Page

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  • https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Ancillary

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  • https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Auxiliary

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  • https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-NRTAVS

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  • https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-OrbitInfo

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  • https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Telemetry

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  • https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-3-Docs

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  • GCMD Keyword Forum Page

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  • NCEI Contact Information

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0043269 ALTIMETRY - CROSSOVER DIFFERENCES ALTIMETRY - SEA SURFACE HEIGHT SEA HEIGHT SEA SURFACE TOPOGRAPHY WAVE DIRECTION WAVE HEIGHT WAVE HEIGHT - SIGNIFICANT

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.info@noaa.gov"
}
describedByType application/octet-steam
description This collection contains the Ocean Surface Topography Mission (OSTM)/Jason-2 Level-2 Geophysical Data Records (GDR) data files. The level-2 X-GDR are available as 3 datatypes: Operational Geophysical Data Records (OGDR), Interim Geophysical Data Records (IGDR) and final Geophysical Data Records (GDR). The OGDRs are near-real-time records and are generated every 3-5 hours. They are based on orbits from DORIS propagator and forecast meteorological fields for the geophysical corrections. The IGDRs are based on preliminary DORIS ephemeris, analyzed meteorological grids, and preliminary auxiliary data files. The IGDRs have a latency of 1 - 2 days. The S-IGDR is a superset of the IGDR, containing the original radar echo "waveform" data. The GDRs are based on final high-precision DORIS (perhaps combined with GPS) ephemeris, final meteorological grids, ancillary and auxiliary data files. The S-GDR is a superset of the GDR, containing the waveform data. The S-GDRs are generated every 10 days. Sea Surface Height Anomaly (SSHA) files are available for IGDR and GDR. All files are available in NetCDF format and the OGDRs are also available in BUFR format.
distribution 
[
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    "description": "These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).",
    "describedByType": "application/octet-stream"
  },
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    "description": "These data are available through a variety of services via a THREDDS (Thematic Real-time Environmental Distributed Data Services) Data Server (TDS). Depending on the dataset, the TDS can provide WMS, WCS, DAP, HTTP, and other data access and metadata services as well. For more information on the TDS, see http://www.unidata.ucar.edu/software/thredds/current/tds/.",
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    "mediaType": "text/html",
    "description": "These data are available through NOAA's Comprehensive Large Array-data Stewardship System (CLASS). Use the CLASS web interface to search for and order data by temporal, spatial and and other product-specific criteria. You may also create a subscription to order data on a regular basis.",
    "describedByType": "application/octet-stream"
  },
  {
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    "title": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Auxiliary",
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    "mediaType": "text/html",
    "description": "Related Jason-2 Data",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-NRTAVS",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-NRTAVS",
    "mediaType": "text/html",
    "description": "Related Jason-2 Data",
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  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-OrbitInfo",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-OrbitInfo",
    "mediaType": "text/html",
    "description": "Related Jason-2 Data",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Telemetry",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Telemetry",
    "mediaType": "text/html",
    "description": "Related Jason-2 Data",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-3-Docs",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-3-Docs",
    "mediaType": "text/html",
    "description": "Handbooks and other documentation",
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    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/OSTM-Jason2-xGDR.xml
issued 2008-07-09T00:00:00.000+00:00
keyword 
[
  "0043269",
  "ALTIMETRY - CROSSOVER DIFFERENCES",
  "ALTIMETRY - SEA SURFACE HEIGHT",
  "SEA HEIGHT",
  "SEA SURFACE TOPOGRAPHY",
  "WAVE DIRECTION",
  "WAVE HEIGHT",
  "WAVE HEIGHT - SIGNIFICANT",
  "WIND SPEED",
  "AMR",
  "DORIS",
  "GPSP",
  "LRA",
  "Poseidon-3 altimeter",
  "satellite sensor - altimeter",
  "derived products",
  "meteorological",
  "physical",
  "satellite data",
  "surface measurements",
  "Jason-2",
  "European Organisation for the Exploitation of Meteorological Satellites",
  "National Centre for Space Studies",
  "NOAA Office of Satellite Data Processing and Distribution",
  "US National Aeronautic and Space Administration",
  "NOAA Office of Satellite Data Processing and Distribution",
  "World-Wide Distribution",
  "oceanography",
  "satelliteObservation",
  "DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/OSPO > Office of Satellite and Product Operations, NESDIS, NOAA, U.S. Department of Commerce",
  "EUMETSAT > European Meteorological Satellite Organisation",
  "JASON-2",
  "OSTM > Ocean Surface Topography Mission",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED",
  "EARTH SCIENCE > OCEANS > OCEAN WAVES > SIGNIFICANT WAVE HEIGHT",
  "EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE HEIGHT",
  "EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE SPEED/DIRECTION",
  "EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY",
  "EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT",
  "EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT > SEA SURFACE HEIGHT ANOMALY (SSHA)",
  "Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry",
  "Earth Science > Oceans > Coastal Processes > Sea Surface Height",
  "Earth Science > Oceans > Ocean Winds > Surface Winds",
  "Earth Science > Oceans > Sea Surface Topography > Sea Level",
  "altimetry",
  "climate change",
  "ALTIMETERS > ALTIMETERS",
  "AMR > Advanced Microwave Radiometer",
  "DORIS > Doppler Orbitography and Radiopositioning Integrated by Satellite",
  "GPSP > Global Positioning System Payload",
  "LRA > Laser Retroreflector Array",
  "POSEIDON-3 > JASON-2 RADAR ALTIMETER",
  "OSTM/JASON-2 > Joint Altimetry Satellite Oceanography Network - 2",
  "JASON-2 (ICES code: 33UF, 2008-2016)",
  "GEOGRAPHIC REGION > GLOBAL OCEAN",
  "4 km",
  "Vertical Location > Sea Surface",
  "Level 2"
]
landingPage https://www.ncei.noaa.gov/contact
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2022-01-07T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
[
  "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Ancillary",
  "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Auxiliary",
  "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-NRTAVS",
  "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-OrbitInfo",
  "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Telemetry",
  "https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-3-Docs"
]
rights otherRestrictions
spatial 180.0,-66.0,-180.0,66.0
temporal 2008-06-20T00:00:00+00:00/2019-10-01T00:00:00+00:00
title OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019

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