Imaging · dataset · 2025
Jason-1 SGDR version E NetCDF Geodetic
Listed in NASA Data Portal
The Sensory Geophysical Data Record (SGDR) files from the Geodetic Mission contain full accuracy altimeter data, with a high precision orbit.
Description
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.
Links
Get the data
- View documentation related to this dataset archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/j1_cyclelist.txt ↗
download · from data nasa gov
- View this dataset's documented anomalies archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/j1_maneuver.txt ↗
download · from data nasa gov
- View this dataset's user's guide archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/Handbook_Jason-1_v… ↗
download · from data nasa gov
- Get a related visualization podaac.jpl.nasa.gov/Podaac/thumbnails/JASON-1_L2_OST_GPS_E_GEODETIC.jpg ↗
download · from data nasa gov
- View this dataset's documented anomalies archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/j1_safehold.txt ↗
download · from data nasa gov
- Download this dataset archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/sgdr_netcdf_e_geodetic/… ↗
download · from data nasa gov
- View this dataset's data citation policy podaac.jpl.nasa.gov/CitingPODAAC ↗
download · from data nasa gov
- Download this dataset through a directory map cmr.earthdata.nasa.gov/virtual-directory/collections/C2491731831-POCLOUD ↗
download · from data nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search/granules?p=C2491731831-POCLOUD ↗
download · from data nasa gov
- View this dataset's data recipes github.com/podaac/data-readers ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/jason-1-sgdr-version-e-netcdf-geodetic ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=9242335a-cc6f-481a-adf7-f7f129042… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
- Inferred from text
- Geophysics 70%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 9242335a-cc6f-481a-adf7-f7f129042622 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3706 | enrichment · data nasa gov | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | vocabulary-mapper@1.0.0 | keywords['earth-science'] |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |