gov.noaa.nodc:OSTM-Jason2-xGDR eng utf8 series NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-04-21T19:31:06Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019 2008-07-09 publication 2022-01-07 revision 2008-07-09 creation NOAA National Centers for Environmental Information gov.noaa.nodc:OSTM-Jason2-xGDR NOAA CLASS gov.noaa.class:J2-XGDR NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher John Lillibridge NOAA Center for Satellite Applications and Research (STAR) John.Lillibridge@noaa.gov https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information resourceProvider NOAA Office of Satellite Data Processing and Distribution (OSDPD) https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information resourceProvider NOAA Office of Satellite and Product Operations (OSPO) https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information originator NOAA Office of Satellite Data Processing and Distribution (OSDPD) https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information originator NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author NOAA/NESDIS Office of Satellite Data Processing and Distribution https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information author Yongsheng Zhang NOAA National Centers for Environmental Information (NCEI) pointOfContact European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) https://www.eumetsat.int/ HTTPS European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) website Institution web page information contributor NOAA Office of Satellite Data Processing and Distribution (OSDPD) https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information contributor National Centre for Space Studies (CNES) http://cnes.fr/ HTTP National Centre for Space Studies (CNES) website Institution web page information contributor US National Aeronautic and Space Administration (NASA) contributor tableDigital 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. To ensure operational continuity for the collection and distribution of high-resolution data on ocean currents and their variations, as well as sea surface height measurements. High-precision ocean altimetry measures the distance between a satellite and the ocean surface to within a few centimeters. Accurate observations of variations in sea surface height (ocean topography) provide scientists with information about the speed and direction of ocean currents and heat stored in the ocean. This information, in turn, reveals global climate variations. OSTM/Jason-2 was a collaboration between NASA, the National Oceanic and Atmospheric Administration (NOAA), CNES, and the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT). completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:OSTM-Jason2-xGDR Preview graphic PNG 0043269 NCEI ACCESSION NUMBER 2008-12-15 publication ALTIMETRY - CROSSOVER DIFFERENCES ALTIMETRY - SEA SURFACE HEIGHT SEA HEIGHT SEA SURFACE TOPOGRAPHY WAVE DIRECTION WAVE HEIGHT WAVE HEIGHT - SIGNIFICANT WIND SPEED theme NODC DATA TYPES THESAURUS AMR DORIS GPSP LRA Poseidon-3 altimeter satellite sensor - altimeter instrument NODC INSTRUMENT TYPES THESAURUS derived products meteorological physical satellite data surface measurements theme NODC OBSERVATION TYPES THESAURUS Jason-2 platform NODC PLATFORM NAMES THESAURUS 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 dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Office of Satellite Data Processing and Distribution dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS World-Wide Distribution place NODC SEA AREA NAMES THESAURUS oceanography satelliteObservation theme WMO_CategoryCode 2012-09-15 publication 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 dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian JASON-2 OSTM > Ocean Surface Topography Mission project Global Change Master Directory (GCMD) Project Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian 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 theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian altimetry climate change theme None 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 instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian OSTM/JASON-2 > Joint Altimetry Satellite Oceanography Network - 2 platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian JASON-2 (ICES code: 33UF, 2008-2016) platform ICES/SeaDataNet Ship Codes GEOGRAPHIC REGION > GLOBAL OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian 4 km dataResolution Spatial Resolution Vertical Location > Sea Surface stratum Global Change Master Directory (GCMD) Stratum Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian Level 2 product Processing Level accessLevel: Public otherRestrictions Cite as: NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2008). OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-xGDR. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2008). OSTM/Jason-2 Ancillary Data Files, 2008 to 2019. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Ancillary. 2008-08-27 publication NOAA National Centers for Environmental Information gov.noaa.nodc:OSTM-Jason2-Ancillary https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Ancillary HTTPS https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Ancillary Related Jason-2 Data information NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author NOAA/NESDIS Office of Satellite Data Processing and Distribution https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference collection NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2008). OSTM/Jason-2 Auxiliary Data Files, 2008 to 2019. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Auxiliary. 2008-08-27 publication NOAA National Centers for Environmental Information gov.noaa.nodc:OSTM-Jason2-Auxiliary https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Auxiliary HTTPS https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Auxiliary Related Jason-2 Data information NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author NOAA/NESDIS Office of Satellite Data Processing and Distribution https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference collection NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2008). OSTM/Jason-2 Near Real-Time Altimetry Validation System (NRTAVS) QA Reports, 2008 to 2019. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-NRTAVS. 2008-08-27 publication NOAA National Centers for Environmental Information gov.noaa.nodc:OSTM-Jason2-NRTAVS https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-NRTAVS HTTPS https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-NRTAVS Related Jason-2 Data information NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author NOAA/NESDIS Office of Satellite Data Processing and Distribution https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference collection NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2008). OSTM/Jason-2 Orbital Information, 2008 to 2019. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-OrbitInfo. 2008-08-27 publication NOAA National Centers for Environmental Information gov.noaa.nodc:OSTM-Jason2-OrbitInfo https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-OrbitInfo HTTPS https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-OrbitInfo Related Jason-2 Data information NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author NOAA/NESDIS Office of Satellite Data Processing and Distribution https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference collection NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2008). OSTM/Jason-2 Telemetry Data, 2008 to 2019. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Telemetry. 2008-08-27 publication NOAA National Centers for Environmental Information gov.noaa.nodc:OSTM-Jason2-Telemetry https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Telemetry HTTPS https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-Telemetry Related Jason-2 Data information NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author NOAA/NESDIS Office of Satellite Data Processing and Distribution https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference collection NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2020). OSTM/Jason-2 and Jason-3 Documentation and Data Documentation Records, 2008 to present. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-3-Docs. 2020-04-27 publication NOAA National Centers for Environmental Information gov.noaa.nodc:OSTM-Jason2-3-Docs https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-3-Docs HTTPS https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-3-Docs Handbooks and other documentation information NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author NOAA/NESDIS Office of Satellite Data Processing and Distribution https://www.ospo.noaa.gov/ HTTPS NOAA Office of Satellite Data Processing and Distribution (OSDPD) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference program eng; USA utf8 environment oceans geoscientificInformation climatologyMeteorologyAtmosphere -180 180 -66 66 2008-06-20 2019-10-01 OSTM/Jason-2 was a follow-on mission continuing the TOPEX/Poseidon and JASON-1 missions, and was designed to ensure continuity of high quality measurements for ocean science and to provide operational products for assimilation and forecasting applications. The Jason-2 satellite was launched on 20 June 2008 and reached its nominal repetitive orbit on 4 July 2008. After more than 11 years in orbit and well beyond its three- to five-year mission baseline, the Ocean Surface Topography Mission (OSTM) on Jason-2 permanently ceased acquisition of scientific data at 06:48 UTC on 1 October 2019 due to aging-related issues onboard the spacecraft. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. netCDF 20091001 BUFR 20091001 Binary Universal Form 5.476 ftp://ftp-oceans.ncei.noaa.gov/pub/data.nodc/jason2/ FTP Any FTP client FTP 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). download https://www.ncei.noaa.gov/data/oceans/jason2/ HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download https://www.ncei.noaa.gov/thredds-ocean/catalog/jason2/catalog.html THREDDS Web browsers can browse THREDDS Data Servers and specialized THREDDS software can enable more sophisticated data access and visualizations. THREDDS 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/. download https://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=JASON-XGDR HTTP Web browser Order 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. order https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-xGDR HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information series NCEI Accession 0043269 v1.1 was published. 2008-07-09T19:24:07Z NCEI Accession 0043269 was revised and v2.2 was published. 2008-07-09T19:24:07Z NCEI Accession 0043269 was revised and v3.3 was published. 2008-07-09T19:24:07Z NCEI Accession 0043269 was revised and v4.4 was published. 2008-07-09T19:24:07Z NCEI Accession 0043269 was revised and v5.5 was published. 2012-08-23T14:15:55Z NCEI Accession 0043269 was revised and v6.6 was published. 2013-02-12T14:42:18Z NCEI Accession 0043269 was revised and v6.7 was published. 2022-01-07T15:46:13Z repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian AMR AMR Advanced Microwave Radiometer The AMR is a passive receiver onboard Jason-2 (French-U.S. satellite launched in 2008) that collects radiation reflected by the oceans at frequencies of 18.7, 23.8, and 34 GHz. The AMR measures water vapor content in the atmosphere so that we can determine how it impacts radar signal propagation. Its measurements can also be used directly for studying other atmospheric phenomena, particularly rain. Jason-2 data are being archived by the NODC as part of the Comprehensive Large Array-data Stewardship System (CLASS) DORIS DORIS Doppler Orbitography and Radiopositioning Integrated from Space The DORIS system uses a ground network of orbitography beacons spread around the globe, which send signals at two frequencies to a receiver on the satellite. The relative motion of the satellite generates a shift in the signal's frequency (called the Doppler shift) that is measured to derive the satellite's velocity. These data are then assimilated in orbit determination models to keep permanent track of the satellite's precise position (to within three centimetres) on its orbit. Jason-2 is a French-U.S. satellite launched in 2008 designed to measure rising sea levels and track the effects of climate change. Jason-2 data are being archived by the NODC as part of the Comprehensive Large Array-data Stewardship System (CLASS). GPSP GPSP Global Positioning System space Payload The GPSP uses the Global Positioning System (GPS) to determine the satellite's position by triangulation, in the same way that GPS fixes are obtained on Earth. At least three GPS satellites determine a mobile object's (in this case the satellite's) exact position at a given instant. Positional data are then integrated into an orbit determination model to track the satellite's trajectory continuously. Jason-2 is a French-U.S. satellite launched in 2008 designed to measure rising sea levels and track the effects of climate change. Jason-2 data are being archived by the NODC as part of the Comprehensive Large Array-data Stewardship System (CLASS). LRA LRA Laser Retroreflector Array The LRA is a totally passive reflector designed to reflect laser pulses back to their point of origin on Earth. It is used for calibrating the satellite's Precise Orbit Determination system. Jason-2 is a French-U.S. satellite launched in 2008 designed to measure rising sea levels and track the effects of climate change. Jason-2 data are being archived by the NODC as part of the Comprehensive Large Array-data Stewardship System (CLASS). Poseidon-3 altimeter Poseidon-3 altimeter Poseidon-3 altimeter Poseidon-3 is the main instrument on board the French-U.S. satellite Jason-2 launched in 2008 and was derived from the Poseidon-2 altimeter on Jason-1. The Poseidon-3 altimeter is a compact, low-power, low-mass instrument offering a high degree of reliability. Poseidon-3 is a radar altimeter that emits pulses at two frequencies (13.6 and 5.3 GHz; the second frequency is used to determine the electron content in the atmosphere) and analyzes the return signal reflected by the surface. The signal round-trip time is estimated very precisely to calculate the range, after applying the necessary corrections. satellite sensor - altimeter satellite sensor - altimeter satellite sensor - altimeter Jason-2 Updated information from ICES for the platform JASON-2 from FRANCE and UNITED STATES. Name JASON-2 Country(s) FR: FRANCE; US: UNITED STATES Platform Class 65: Orbiting satellite Commissioned Date 2008-06-20 Decommissioned Date 2016 Information Source (URL) http://www.wmo-sat.info/oscar/satellites/view/205 OTHER INFORMATION: The Ocean Surface Topography Mission (OSTM) is a joint effort by four organizations to measure sea surface height by using a radar altimeter mounted on a low-earth orbiting satellite called Jason-2. The four mission participants are: National Oceanic and Atmospheric Administration (US NOAA), National Aeronautics and Space Administration (US NASA), Centre National d'Etudes Spatiales (FRANCE CNES), and European Meteorological Satellite Organisation (EU EUMETSAT). JASON-2 was built under direction from CNES. After launch by NASA, CNES and NASA transferred operation and control of the JASON-2 platform to NOAA. The Jason-2 satellite was launched in June 20, 2008. Submitted to ICES on 2014-06-04. Confirmed by NOAA on 2018-08-08. After more than 11 years in orbit and well beyond its three- to five-year mission baseline, the Ocean Surface Topography Mission (OSTM) on Jason-2 permanently ceased acquisition of scientific data at 06:48 UTC on 1 October 2019 due to aging-related issues onboard the spacecraft.