Imaging · dataset · 2025
SWOT Level 2 Nadir Altimeter Geophysical Data Record with Waveforms - SGDR
Listed in Open NASA
The SWOT Level 2 Nadir Altimeter Geophysical Data Record (GDR) with Waveforms dataset produced by the Surface Water and Ocean Topography (SWOT) mission provides sea surface height, significant wave height and wind speed measurements from the Poseidon-3C nadir altimeter, a Jason-class dual frequency (Ku/C) altimeter.
Description
SWOT is a joint mission between NASA and CNES that launched on December 16, 2022. It aims to measure ocean surface topography with unprecedented resolution and accuracy, as well as map inland water bodies globally.
The GDR dataset consists of discrete measurements for each half orbit along the ground track with sampling resolutions of approximately 6-km and 300-m at 1Hz and 20Hz, respectively. The data were processed using restituted auxiliary data and the Precise Orbit Ephemeris (POE). The data are available with latency of This collection is a sub-collection of its parent: podaac.jpl.nasa.gov/dataset/SWOT_L2_NALT_GDR_2.0
Links
Get the data
- The dataset's project home page swot.jpl.nasa.gov ↗
download · from open nasa gov
- View documentation related to this dataset nasa.gov/swot ↗
download · from open nasa gov
- View documentation related to this dataset jpl.nasa.gov/missions/surface-water-and-ocean-topography-swot ↗
download · from open nasa gov
- View documentation related to this dataset podaac.jpl.nasa.gov/swot ↗
download · from open nasa gov
- View documentation related to this dataset aviso.altimetry.fr/en/missions/current-missions/swot.html ↗
download · from open nasa gov
- View this dataset's data citation policy podaac.jpl.nasa.gov/CitingPODAAC ↗
download · from open nasa gov
- Download this dataset through a directory map cmr.earthdata.nasa.gov/virtual-directory/collections/C2799465518-POCLOUD ↗
download · from open nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search/granules?p=C2799465518-POCLOUD ↗
download · from open nasa gov
- Get a related visualization podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_NALT_GDR_2.0.jpg ↗
download · from open nasa gov
- Resource github.com/podaac/data-subscriber ↗
download · from open nasa gov
- View this dataset's user's guide archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/SALP-ST… ↗
download · from open nasa gov
- Google Scholar search results scholar.google.com/scholar?q=10.5067%2FSWOT-NALT-GDR-2.0 ↗
download · from open nasa gov
Where it is published
- Open NASA dataset page data.nasa.gov/dataset/swot-level-2-nadir-altimeter-geophysical-data-record-w… ↗
landing page · from open nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=b0b1fb43-4676-4d0c-a8aa-8c604be37… ↗
metadata API · from open nasa gov
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
Related
- Possibly the same asSWOT Level 2 Nadir Altimeter Geophysical Data Record with Waveforms - SGDR
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Open NASA | b0b1fb43-4676-4d0c-a8aa-8c604be3794e | 17 h ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · open nasa gov | vocabulary-mapper@1.0.0 | keywords['earth-science'] |
| concepts[field].local:field:ocean-atmospheric | mapping · open nasa gov | connector:open_nasa_gov@1.0.0 | |
| created_date | source · open nasa gov | connector:open_nasa_gov@1.0.0 | |
| description | source · open nasa gov | connector:open_nasa_gov@1.0.0 | /notes |
| license_text | source · open nasa gov | connector:open_nasa_gov@1.0.0 | |
| publication_date | source · open nasa gov | connector:open_nasa_gov@1.0.0 | |
| title | source · open nasa gov | connector:open_nasa_gov@1.0.0 | /title |
| updated_date | source · open nasa gov | connector:open_nasa_gov@1.0.0 |