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	February 17, 2026, 04:14 (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	63dc8be5-62fc-4679-b21d-66d4f431e8b7
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	10.3334/ORNLDAAC/2392
landingPage	https://search.earthdata.nasa.gov/search?q=Wetland_Salinity_Maps_2392&ac=true
modified	2026-02-16
programCode	{026:000}
publisher	ORNL_DAAC
resource-type	Dataset
source_datajson_identifier	true
source_hash	232ddfab2957a886580bfe9fbedbb927f8aef28bc47f22eb2fb8aa5a27cfed78
source_schema_version	1.1
spatial	[[{"WestBoundingCoordinate":-124.706,"NorthBoundingCoordinate":48.808,"EastBoundingCoordinate":-69.4718,"SouthBoundingCoordinate":26.3235}],"CARTESIAN"]
temporal	2020-01-01/2020-01-01
theme	{"Earth Science"}