Global Hydrologic Soil Groups (HYSOGs250m) for Curve Number-Based Runoff Modeling

This dataset - HYSOGs250m - represents a globally consistent, gridded dataset of hydrologic soil groups (HSGs) with a geographical resolution of 1/480 decimal degrees, corresponding to a projected resolution of approximately 250-m. These data were developed to support USDA-based curve-number runoff modeling at regional and continental scales. Classification of HSGs was derived from soil texture classes and depth to bedrock provided by the Food and Agriculture Organization soilGrids250m system.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated November 3, 2026, 01:48 (UTC)
Created April 1, 2025, 16:01 (UTC)
Identifier 10.3334/ORNLDAAC/1566
Modified 2026-10-26T22:16:09Z
Theme {"Earth Science"}
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 7e843c5e-b413-4176-9cfd-9e5ea28a8361
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
license https://www.usa.gov/government-works
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 8e435bd984b115a9e077897bcdb3771584fbaef9da9a04c40806130aef628664
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180.0, "NorthBoundingCoordinate": 83.9997, "EastBoundingCoordinate": 180.0, "SouthBoundingCoordinate": -56.0008}]]
temporal 2017-01-01/2017-11-28