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

Published by ORNL_DAAC | National Aeronautics and Space Administration | Metadata Last Checked: September 14, 2025 | Last Modified: 2025-09-11

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.

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Complete Metadata

bureauCode	[ "026:00" ]
identifier	10.3334/ORNLDAAC/1566
landingPage	https://search.earthdata.nasa.gov/search?q=Global_Hydrologic_Soil_Group_1566&ac=true
programCode	[ "026:000" ]
spatial	[[{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":83.9997,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-56.0008}],"CARTESIAN"]
temporal	2017-01-01/2017-01-01
theme	[ "Earth Science" ]