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OAS accession Detail for 0122595, meta_version: 2. Current meta_version is: 6
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| accessions_id: | 0122595 | archive |
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| Title: | Jason-3 Level-2 Operational, Interim and Final Geophysical Data Records (X-GDR), 2015- (NODC Accession 0122595) |
| Abstract: | Jason-3 is the fourth mission in U.S.-European series of satellite missions that measure the height of the ocean surface. Scheduled to launch in 2015, the mission will extend the time series of ocean surface topography measurements begun by the TOPEX/Poseidon satellite mission in 1992 and continuing through the currently operating Jason-1 (launched in 2001) and OSTM/Jason-2 (launched in 2008) missions. These measurements provide scientists with critical information about circulation patterns in the ocean and about both global and regional changes in sea level and the climate implications of a warming world. TOPEX/Poseidon and Jason-1 were cooperative missions between NASA and the French space agency, CNES. Additional partners in the Jason-2 mission included NOAA and Eumetsat. Jason-3 continues the international cooperation, with NOAA and Eumetsat leading the efforts, along with partners NASA and CNES. The primary instrument on Jason-3 is a radar altimeter. The altimeter measures sea-level variations over the global ocean with very high accuracy (as 1.3 inches or 3.3 centimeters, with a goal of achieving 1 inch or 2.5 centimeters). 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. Jason-3 level-2 X-GDR data are distributed through the NOAA/NESDIS Comprehensive Large Array-data Stewardship System (CLASS:http://www.class.noaa.gov). Jason-3 level-2 X-GDR data are distributed through the NOAA National Oceanographic Data Center via FTP at ftp://data.nodc.noaa.gov/pub/data.nodc/jason3, HTTP at http://data.nodc.noaa.gov/jason3 and OPeNDAP at http://data.nodc.noaa.gov/opendap/jason3 and archived by NODC (NODC) as accession number 0122595 (http://www.nodc.noaa.gov/cgi-bin/search/prod/accessionsView.pl/details/0122595). Archival storage is provided by the Comprehensive Large Array-data Stewardship System (CLASS:http://www.class.noaa.gov). Additional documentation for Jason-3 data is archived at the NODC at: https://archive.nodc.noaa.gov/cgi-bin/AMS/prod/accession/details/118276. The documentation includes metadata in International Standards Organization (ISO) format. |
| Date received: | 20150401 |
| Start date: | 20150401 |
| End date: | 20250101 |
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| West boundary: | -180 |
| East boundary: | 180 |
| North boundary: | 66 |
| South boundary: | -66 |
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| Submitter: | Lillibridge, John |
| Submitting institution: | US DOC; NOAA; NESDIS; Office of Satellite Data Processing and Distribution |
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| Availability date: | 20150501 |
| Metadata version: | 2 |
| Keydate: | 2014-10-10 19:53:10+00 |
| Editdate: | 2014-12-22 16:05:21+00 |