SWOT Sword of Science River Discharge Products Version 1

The SWOT Sword of Science River Discharge Products dataset from the Surface Water and Ocean Topography (SWOT) mission and produced by the Discharge Algorithm Working Group (DAWG), provides estimates of river discharge derived from the SWOT Level 2 River Single-Pass Vector Data Product, and includes both unconstrained and gauge constrained estimates that leverage in-situ measurements. The SWOT mission is implemented jointly by NASA and Centre National D'Etudes Spatiales (CNES) to provide valuable data and information about the world's oceans and its terrestrial surface water such as lakes, rivers, and wetlands. Sword of Science data products are generated from the open-source SWOT Confluence program and contain river discharge parameter estimates as well as discharge time series for both river reaches and river nodes, following the SWOT River Database (SWORD) structure. Granules from both constrained and unconstrained branches are composed of prior information (e.g., mean annual flow predicted by global hydrological models) and the resulting discharge estimates. Priors and results files for both constrained and unconstrained branches are available in netCDF format. Users are encouraged to reference the SWOT Confluence documentation and notebook tutorials for full documentation of the data structure and variables available. Development of the SWOT Confluence program as well as the Sword of Science data products was funded by NASA’s Advanced Information Systems Technology (AIST) program.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 13, 2026, 20:45 (UTC)
Created March 10, 2026, 03:48 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 815b2d8f-eeed-4b49-9067-2b96b175920e
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/SWOT-SOS-V1
license https://www.usa.gov/government-works
modified 2026-04-06T22:16:02Z
programCode {026:000}
publisher NASA/JPL/PODAAC
resource-type Dataset
source_datajson_identifier true
source_hash b722c24fdf75c0225822e41016ba0ca036eca604efd0bb7afd209674732405e2
source_schema_version 1.1
spatial ["CARTESIAN",[{"NorthBoundingCoordinate":90,"WestBoundingCoordinate":-180,"EastBoundingCoordinate":180,"SouthBoundingCoordinate":-90}]]
temporal 1980-01-01/2026-04-06
theme {"Earth Science"}