Title :
First order surface roughness correction of active microwave observations for estimating soil moisture
Author :
Jackson, T.J. ; McNairn, H. ; Weltz, M.A. ; Brisco, B. ; Brown, R.
Author_Institution :
USDA-ARS Hydrology Lab., Beltsville, MD, USA
fDate :
7/1/1997 12:00:00 AM
Abstract :
Surface roughness has a significant effect on the relationship between radar backscatter and soil moisture. In order to use existing radar satellite data for soil moisture, roughness effects must be corrected. A technique is presented that utilizes the data bases from soil erosion studies and soil moisture remote sensing investigations to provide first order estimates of the roughness parameters
Keywords :
backscatter; electromagnetic wave scattering; geophysical techniques; hydrological techniques; moisture measurement; radar cross-sections; remote sensing by radar; soil; active microwave observations; first order surface roughness correction; geophysical measurement technique; hydrology; radar backscatter; radar remote sensing; radar scattering; soil moisture; water content; Backscatter; Radar remote sensing; Remote sensing; Rough surfaces; Satellites; Soil moisture; Solid modeling; Spaceborne radar; Surface roughness; Surface soil;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
