TOPEX/POSEIDON Geophysical Data Record Version F

Description

The TOPEX/POSEIDON Geophysical Data Record (GDR) contains global coverage altimeter data. The objective of the TOPEX/POSEIDON mission, launched in August 1992, is to determine ocean topography with a sea surface height measurement precision of 3 cm and a sealevel measurement accuracy of 13 cm. The dataset contains measurements from two altimeters, a NASA dual frequency (Ku and C band) instrument similar to the Geosat altimeter, and a French space agency (CNES) instrument which is a proof-of-concept solid-state altimeter (Ku band). It also contains Sea Surface Height (SSH), significant wave height, ionospheric correction, tides and other geophysical corrections. It is emphasized that this product is considered research data because of the form and content of the data. The data consist entirely of files comprising headers and data records which contain over a hundred parameters for each second. It is swath data and there are no images. Analysis software is the responsibility of the user. Calculation of sea surface height anomalies from the altimeter range and environmental corrections is the responsibility of the user. The data are arranged in 10 day cycles that are separated into 254 passes, each about 56 minutes.

Resources

Name Format Description Link
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/TOPEX_POSEIDON_GDR_F.jpg
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2599212091-POCLOUD
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2599212091-POCLOUD
21 Data Subscriber https://github.com/podaac/data-subscriber
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
33 TOPEX/POSEIDON GDR-F Products Handbook https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/D-73899_tpx-grdf-hdbk-20230626_w-sigs.pdf
21 T/P Cycle Start Times https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/tp_cyclelist.txt
21 T/P Satellite Attitude Event Information https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/tp_maneuver.txt
21 TOPEX/Poseidon Mission Page at JPL https://www.jpl.nasa.gov/missions/topex-poseidon
21 TOPEX/Poseidon Mission Page at NASA Sea Level https://sealevel.jpl.nasa.gov/missions/topex-poseidon/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FTPXPS-GDRF1
21 T/P Safehold Start and Stop Times https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/topex/open/L2/docs/tpsafehold.txt

Tags

  • oceans
  • ocean-waves
  • sea-surface-topography
  • earth-science

Topics

Categories