Metadata Updated: May 2, 2019

The Sensory Geophysical Data Record (SGDR) files from the Geodetic Mission contain full accuracy altimeter data, with a high precision orbit, provided approximately 35 days after data collection. The instruments on Jason-1 make direct observations of the following quantities: altimeter range, significant wave height, ocean radar backscatter cross-section (a measure of wind speed), ionospheric electron content (derived by a simple formula), tropospheric water content, mean sea surface, and position relative to the GPS satellite constellation. The SGDR contain all relevant corrections needed to calculate the sea surface height. It also contains the 20Hz waveforms that are required for retracking. The SGDR is an expert level product, if you do not require the waveforms then the GDR will be more suited for your needs.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher PO.DAAC
Unique Identifier C1293272175-PODAAC
Jessica Hausman
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Archived by National Aeronautics and Space Administration, U.S. Government, PO.DAAC.
Datagov Dedupe Retained 20190501230127
Harvest Object Id ffe06368-e317-41f9-a44b-bc6763dfe9c0
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2014-03-17
Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1293272175-PODAAC.html
Language en-US
Metadata Type geospatial
Data Last Modified 2014-03-17
Program Code 026:001
Source Datajson Identifier True
Source Hash 354d3504bc5c6c2e4917049489dfcd8fb3700696
Source Schema Version 1.1
Spatial -180.0 -66.15 180.0 66.15
Temporal 2012-05-07T16:00:00Z/2013-06-21T00:56:54Z
Category geospatial

Didn't find what you're looking for? Suggest a dataset here.