caa a22 4500 475777158 CHVBK 20180406123634.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1023/A:1002668624711 doi (NATIONALLICENCE)springer-10.1023/A:1002668624711 De Ridder Koen Remote Sensing and Atmospheric Processes, Flemish Institute for Technological Research (Vito), Mol, Belgium aut Quantitative estimation of skin soil moisture with the Special Sensor Microwave/Imager [Elektronische Daten] [Koen De Ridder] A physically based retrieval scheme is described toinfer near surface moisture content of bare soilpatches from time series of the Special SensorMicrowave/Imager (SSM/I) Polarisation DifferenceTemperature (PDT) at 19.35 GHz. The PDT is modelled asa function of soil moisture using Fresnel's relationsfor specular reflection at the air-soil boundary,together with a dielectric mixing model for themoisture-dependent soil dielectric constant. Theproblem of the specification of parameters describingatmospheric and soil roughness effects is avoided byconsidering temporal variations of the PDT. Theretrieval method is applied to the FIFE site for atwo-week period in summer, during which heavy rainfalloccurred on a dry upper soil. Although differences insensing depths made a rigorous validation impossible,remotely sensed soil moisture showed a high degree ofconsistency with ground measurements. An erroranalysis shows that the method is capable of providingan accuracy of approximately 20% of moisture contentat field capacity. Finally, it is demonstrated thatthe method is relatively insensitive to soil texturalcharacteristics when moisture content is scaled withfield capacity. Kluwer Academic Publishers, 2000 Passive microwave nationallicence Remote sensing nationallicence Soil moisture nationallicence Boundary-Layer Meteorology Kluwer Academic Publishers 96/3(2000-09-01), 421-432 0006-8314 96:3<421 2000 96 10546 https://doi.org/10.1023/A:1002668624711 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002668624711 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- De Ridder Koen Remote Sensing and Atmospheric Processes, Flemish Institute for Technological Research (Vito), Mol, Belgium aut NATIONALLICENCE 773 0- Boundary-Layer Meteorology Kluwer Academic Publishers 96/3(2000-09-01), 421-432 0006-8314 96:3<421 2000 96 10546 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer