Imaging · collection · 2015
Jason-1 SGDR version E NetCDF
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/j1gps-nc00e
The Sensory Geophysical Data Record (SGDR) files contain full accuracy altimeter data, with a high precision orbit (accuracy ~1.5 cm).
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/GPN or GPR will be more suited for your needs.
Links
Get the data
- Resource opendap.earthdata.nasa.gov ↗
This dataset can be accessed with the Open-source Project for a Network Data Access Protocol (OPeNDAP) API framework. This service enables variable and dimensional subsetting. The URL redirects to a p
metadata API · download · from NASA CMR, data nasa gov
- Data Use and Citation Guidelines podaac.jpl.nasa.gov/CitingPODAAC ↗
documentation · download · from NASA CMR, data nasa gov
- Jason-1 safeholds and known data outages archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/j1_safehold.txt ↗
documentation · download · from NASA CMR, data nasa gov
- Jason-1 maneuvers archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/j1_maneuver.txt ↗
documentation · download · from NASA CMR, data nasa gov
- Jason-1 cycle start list archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/j1_cyclelist.txt ↗
documentation · download · from NASA CMR, data nasa gov
- Generic data readers github.com/podaac/data-readers ↗
documentation · download · from NASA CMR, data nasa gov
- Jason-1 User Guide archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/jason1/open/L2/docs/Handbook_Jason-1_v… ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C1940472420-POCLOUD.iso19115 ↗
download · from data nasa gov
- github.com /podaac/data-subscriber ↗
This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command lin
download · from NASA CMR
- Resource harmony.earthdata.nasa.gov ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C1940472420-POCLOUD ↗
Browse granule search results in Earthdata Search
download · from NASA CMR
- cmr.earthdata.nasa.gov /virtual-directory/collections/C1940472420-POCLOUD ↗
Browse and download granules over HTTPS using the virtual directories
download · from NASA CMR
- JPEG podaac.jpl.nasa.gov/Podaac/thumbnails/JASON-1_L2_OST_GPS_E.jpg ↗
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/jason-1-sgdr-version-e-netcdf-dd858 ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/j1gps-nc00e ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=2dc176b1-ebe6-42ee-ba40-f35917090… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1940472420-POCLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1940472420-POCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Doppler Orbitography and Radiopositioning Integrated by Satellite · JASON-1 · JASON-1 MICROWAVE RADIOMETER · JASON-1 RADAR ALTIMETER · Sea Surface Height · Significant Wave Height · Turbo Rouge Space Receiver
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1940472420-POCLOUD | 13 d ago | JSON v1 |
| NASA Data Portal | 2dc176b1-ebe6-42ee-ba40-f35917090872 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:doris | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:jason-1-microwave-radiometer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:poseidon-2 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:trsr | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-waves/significant-wave-height | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/sea-surface-topography/sea-surface-height | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:jason-1 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |