Microwave Remote Sensing of Soil Moisture Applied to Hydrologic Modeling

by Edwin T. Engman, USDA-ARS, United States,

Document Type: Proceeding Paper

Part of: Watershed Planning and Analysis in Action


Recent advances in microwave remote sensing have demonstrated the ability to measure soil moisture under a variety of topographic and vegetation cover conditions; however, its application to hydrology has only been speculated. This paper reviews progress in both passive and active microwave remote sensing of soil moisture and presents results of applying aircraft data to a simple hydrologic model. Current research efforts are presented and the major research questions involving microwave applications to hydrology are discussed.

Subject Headings: Soil water | Microwaves | Hydrologic models | Sensors and sensing | Mathematical models | Hydrology | Vegetation

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