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SMEX02 Land Surface Information: Soils Database, Version 1 provides soil moisture and classification data for ten Iowa counties: Boone, Dallas, Franklin, Hamilton, Hardin, Jasper, Marshall, Polk, Story, and Wright. NASA compiled this dataset by appending and clipping existing county-level digital soils data from the Iowa Cooperative Soil Survey. The dataset's creation is associated with the SMEX02 project, which concluded in 2002.
License information is conflicting; users should verify terms before use. The future date (2026) on Data.gov is likely a metadata error, the 2002 date from NASA is more credible. Available file formats include BIN, ISO, and HTML.