Dataset Overview | National Centers for Environmental Information (NCEI)

OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019 (NCEI Accession 0043269)

browse graphicPreview graphic
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.
  • Cite as: NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2011). OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019 (NCEI Accession 0043269). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-xGDR. Accessed [date].
gov.noaa.nodc:OSTM-Jason2-xGDR
Download Data
  • FTP (download)
    These data are available through the File Transfer Protocol (FTP). You may use any FTP client to download these data.
  • HTTP (download)
    Navigate directly to the URL for data access and direct download.
  • THREDDS (download)
    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/.
Order Data
  • Order (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.
Distribution Formats
  • netCDF (Version: 20091001)
  • BUFR (Version: 20091001)
    • File Specification: Binary Universal Form
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2008-06-20 to 2019-10-01
Spatial Bounding Box Coordinates
N: 66
S: -66
E: 180
W: -180
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2011-03-02
  • revision: 2013-02-12
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
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.
Purpose 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.
Use Limitations
  • accessLevel: Public
  • 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.
Dataset Citation
  • Cite as: NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2011). OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019 (NCEI Accession 0043269). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-xGDR. Accessed [date].
Cited Authors
Contributors
Resource Providers
Points of Contact
Publishers
Acknowledgments
  • 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).
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
  • satelliteObservation
Global Change Master Directory (GCMD) Science Keywords None
  • OSTM > Ocean Surface Topography Mission
  • altimetry
  • climate change
  • sea level
  • sea surface height anomaly
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords None
  • Geographic Region > Global Ocean
  • Vertical Location > Sea Surface
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: NOAA/NESDIS Office of Satellite and Product Operations; NOAA/NESDIS Office of Satellite Data Processing and Distribution (2011). OSTM/Jason-2 Level-2 Geophysical Data Records (GDR), 2008 to 2019 (NCEI Accession 0043269). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/OSTM-Jason2-xGDR. Accessed [date].
Access Constraints
  • 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.
Fees
  • 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.
Lineage information for: series
Processing Steps
  • 2011-03-02T18:17:26Z - NCEI Accession 0043269 v1.1 was published.
  • 2011-03-02T18:17:27Z - NCEI Accession 0043269 was revised and v2.2 was published.
  • 2011-03-02T18:17:27Z - NCEI Accession 0043269 was revised and v3.3 was published.
  • 2011-03-02T18:17:27Z - NCEI Accession 0043269 was revised and v4.4 was published.
  • 2012-08-23T14:15:59Z - NCEI Accession 0043269 was revised and v5.5 was published.
  • 2013-02-12T14:42:19Z - NCEI Accession 0043269 was revised and v6.6 was published.
Output Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - 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.
Acquisition Information (collection)
Instrument
  • AMR
  • DORIS
  • GPSP
  • LRA
  • Poseidon-3 altimeter
  • satellite sensor - altimeter
Platform
  • Jason-2
Last Modified: 2021-07-19T20:48:27Z
For questions about the information on this page, please email: ncei.info@noaa.gov