Wetland Salinity Maps of Select Estuary Sites in the United States, 2020

This dataset provides gridded average annual wetland salinity concentrations in practical salinity units (PSU) at 30-meter resolution within 24 coastal estuary sites in the United States predicted for 2020. Salinity in estuaries can serve as a proxy for sulfate concentration, which can inhibit methanogenesis. Data were derived from a hybrid approach to mapping salinity as a continuous variable using a combination of physical watershed and stream characteristics, optical remote sensing based on vegetation characteristics, and climate variables. Data are provided in cloud-optimized GeoTIFF format covering 33 Hydrologic Unit Code 8-digit (HUC8) watersheds to the extent of palustrine and estuarine wetlands as defined by NOAA's 2016 Coastal Change Analysis Program (C-CAP) Coastal Land Cover layer. Additionally, model outputs are provided in comma separated values (CSV) files, and code scripts are provided in a compressed (*.zip) file.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated March 10, 2026, 04:23 (UTC)
Created April 1, 2025, 20:03 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id fbee3916-586a-4ce9-b424-090eea051fc2
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/2392
license https://www.usa.gov/government-works
modified 2026-03-05T23:29:36Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 0d9aa7e2984ebd4c29c8a325ce067d13ead3c8d4845f664253ea565c3f9c5d51
source_schema_version 1.1
spatial [[{"WestBoundingCoordinate":-124.706,"NorthBoundingCoordinate":48.808,"EastBoundingCoordinate":-69.4718,"SouthBoundingCoordinate":26.3235}],"CARTESIAN"]
temporal 2020-01-01/2020-12-31
theme {"Earth Science"}