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OAS accession Detail for 0043269, meta_version: 18. Current meta_version is: 37
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| accessions_id: | 0043269 | archive |
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| Title: | Ocean Surface Topography Mission (OSTM)/Jason-2: Level-2 Geophysical Data Records (GDR) (NODC Accession 0043269) |
| Abstract: | This accession contains the data descriptions for the Level-2 Geophysical Data Records (GDR) from the Ocean Surface Topography Mission (OSTM)/Jason-2, which is served through the NOAA/NESDIS Comprehensive Large Array-data Stewardship System (CLASS): http://www.class.noaa.gov OSTM/Jason-2 is a follow-on mission to Jason-1, which takes over and continues the TOPEX/Poseidon and Jason-1 missions. OSTM/Jason-2 involves Centre National d'Etudes Spatiales (CNES), NASA and 2 new partners: the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) and NOAA in order to 1) ensure continuity of high quality measurements for ocean science, and 2) provide operational products for assimilation and forecasting applications. OSTM/Jason-2 was launched on 20 June 2008 and reached its nominal repetitive orbit on 4 July 2008. The start of cycle 1 occurred on 12 July 2008. The level 2 geophysical data records derived from instruments aboard the JASON-2 satellite 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. The IGDRs are based on preliminary DORIS ephemeris, analyzed meteorological grids, and preliminary auxiliary data files. They have a data 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. S-GDR is a superset of the GDR, containing the waveform data. They 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 OGDR is also available in BUFR format. Near real-time data (OGDRs) and supporting files were made available to all users beginning on 15 December, 2008. The IGDRs are unrestricted on 15 January, 2009. Restrictions on the Geophysical Data Records will be lifted after the Ocean Surface Topography Science Team meeting in June 2009. Other data/products associated with OSTM/Jason-2 are also provided through CLASS. They are: ancillary and auxiliary data files used to generate Level-2 products, quality reports from the near real-time altimetry validation system (NRTAVS), orbit information of JASON-2 satellite and telemetry data.The descriptions of these data products can be accessed in other accessions at NODC. |
| Date received: | 20081215 |
| Start date: | 20080620 |
| End date: | 20090715 |
| Seanames: | World-Wide Distribution |
| West boundary: | -180 |
| East boundary: | 180 |
| North boundary: | 66 |
| South boundary: | -66 |
| Observation types: | derived products, meteorological, physical, satellite data, surface measurements |
| Instrument types: | AMR, DORIS, GPSP, LRA, Poseidon-3 altimeter |
| Datatypes: | ALTIMETRY - CROSSOVER DIFFERENCES, ALTIMETRY - SEA SURFACE HEIGHT, SEA HEIGHT, SEA SURFACE TOPOGRAPHY, WAVE DIRECTION, WAVE HEIGHT, WAVE HEIGHT - SIGNIFICANT, WIND SPEED |
| Submitter: | Lillibridge, John |
| Submitting institution: | US DOC; NOAA; NESDIS; Office of Satellite Data Processing and Distribution |
| Collecting institutions: | European Organisation for the Exploitation of Meteorological Satellites, National Centre for Space Studies, US DOC; NOAA; NESDIS; Office of Satellite Data Processing and Distribution, US National Aeronautic and Space Administration |
| Contributing projects: | |
| Platforms: | Jason-2 (33UF) |
| Number of observations: | |
| Supplementary information: | |
| Availability date: | 20081215 |
| Metadata version: | 18 |
| Keydate: | 2008-07-09 19:24:07+00 |
| Editdate: | 2009-07-15 21:06:04+00 |