Abstract Active and passive microwave signatures of bare soil were measured simultaneously with soil parameters as temperature, soil moisture, surface roughness, soil texture and permittivity. The results of three special situations, where only one soil parameter changed, are presented. In the first situation of freezing and thawing cycles only the permittivity is different. In the second situation four measurements of a bare soil are compared. At all four days the soil moisture is approximately the same, but the surface roughness changes due to erosion by rain. Third we measured a bare soil before and after a thunderstorm with hail. Again erosion smoothed the soil surface. Two days with the same soil moisture were selected. These measurements can now be used to test and create models. Microwave signatures of a frozen soil and of a soil after a thunderstorm are shown.
Microwave signatures of bare soil
Advances in Space Research ; 9 , 1 ; 307-316
1989-01-01
10 pages
Article (Journal)
Electronic Resource
English
Synergism of Active and Passive Microwave Data for Estimating Bare Surface Soil Moisture
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