Imaging · dataset · 2025
SWOT Level 2 Lake Single-Pass Vector Data Product, Version D
Listed in NASA Data Portal
The SWOT Level 2 Lake Single-Pass Vector Product (SWOT_L2_HR_LakeSP_D) provides geolocated surface water measurements for lakes and unclassified water bodies, derived from high-resolution radar observations collected by the Ka-band Radar Interferometer (KaRIn) on the SWOT satellite.
Description
This product reports water surface elevation, surface area, and quality indicators for each observed lake or feature, with polygons generated from the PIXCVec pixel cloud.
It includes features linked to the Prior Lake Database (PLD), as well as unassigned features not recognized as lakes or rivers in the PLD or PRD. Each granule covers a full KaRIn swath for a single continental pass and contains three ESRI shapefiles: one observation-oriented file of observed PLD lakes, one PLD-oriented file with prior lake features (including unobserved ones), and one file for unassigned features. Observed quantities are referenced to the WGS84 ellipsoid and corrected for geoid height, solid Earth, load, and pole tides, as well as tropospheric and ionospheric path delays.
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Attributes also include uncertainties, flags for partial or dark water coverage, ice cover, and crossover calibration. Storage change estimates are reported in the PLD-oriented shapefile using both direct and incremental methods under different bathymetric assumptions. The LakeSP product provides consistent reach-scale and basin-level lake measurements suitable for time series analyses, hydrologic modeling, and integration with prior lake databases.
It enables monitoring of water level changes and surface area dynamics across a wide range of inland water bodies and supports hydrological applications in water balance studies, reservoir management, and climate impact assessment. This dataset is the parent collection to the following sub-collections: podaac.jpl.nasa.gov/dataset/SWOT_L2_HR_LakeSP_obs_D podaac.jpl.nasa.gov/dataset/SWOT_L2_HR_LakeSP_prior_D podaac.jpl.nasa.gov/dataset/SWOT_L2_HR_LakeSP_unassigned_D
Links
Get the data
- Resource swot.jpl.nasa.gov ↗
download · from data nasa gov
- Resource nasa.gov/swot ↗
download · from data nasa gov
- Resource jpl.nasa.gov/missions/surface-water-and-ocean-topography-swot ↗
download · from data nasa gov
- Resource podaac.jpl.nasa.gov/swot ↗
download · from data nasa gov
- Resource aviso.altimetry.fr/en/missions/current-missions/swot.html ↗
download · from data nasa gov
- Resource podaac.jpl.nasa.gov/CitingPODAAC ↗
download · from data nasa gov
- Resource cmr.earthdata.nasa.gov/virtual-directory/collections/C3233944983-POCLOUD ↗
download · from data nasa gov
- Resource search.earthdata.nasa.gov/search/granules?p=C3233944983-POCLOUD ↗
download · from data nasa gov
- JPEG podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_HR_LakeSP_D.jpg ↗
download · from data nasa gov
- PDF archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/SWOT-TN… ↗
download · from data nasa gov
- PDF archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/atbd/SWOT-N… ↗
download · from data nasa gov
- PDF archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/SWOT_Versio… ↗
download · from data nasa gov
- Resource github.com/podaac/data-subscriber ↗
download · from data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3233944983-POCLOUD.iso19115 ↗
download · from data nasa gov
- PDF archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SW… ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/swot-level-2-lake-single-pass-vector-data-product-vers… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/swot-lakesp-d ↗
DOI / persistent id · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=1294c2a7-97d4-44bb-b052-c921e417f… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Hydrology 73%
Related
- Possibly the same asSWOT Level 2 Lake Single-Pass Vector Obs Data Product, Version D
- Possibly the same asSWOT Level 2 Lake Single-Pass Vector Unassigned Data Product, Version D
- Possibly the same asSWOT Level 2 Lake Single-Pass Vector Data Product, Version D
- Possibly the same asSWOT Level 2 Lake Single-Pass Vector Prior Data Product, Version D
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | 1294c2a7-97d4-44bb-b052-c921e417f493 | 6 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3707 | enrichment · data nasa gov | taxonomy-embedding@1.0.0 | title+keywords+description (73%) |
| 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 | |
| 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 |