Microwave Remote Sensing of Soil Moisture Applied to Hydrologic Modelingby Edwin T. Engman, USDA-ARS, United States,
Abstract: 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: Microwaves | Soil water | Hydrologic models | Remote sensing | Topography | Vegetation | Hydrology | Data processing
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