Title :
Multi-parameter airborne SAR remote sensing of soil moisture in agricultural area
Author :
Herold, M. ; Shi, J. ; Schmullius, C.C.
Author_Institution :
Dept. of Geogr., California Univ., Santa Barbara, CA, USA
Abstract :
This study investigates issues and problems in soil moisture radar remote sensing in agricultural areas as part of the International Surface Parameter Retrieval Collaboration (SPARC). The analysis is based on multi-parameter E-SAR data and intensive field measurements of soil moisture and surface roughness. The analysis of multi-frequency, polarimetric and interferometric backscatter shows the dominance of the roughness signal compared to the variations in soil moisture. Problems on soil moisture mapping were described and discussed in a spatial error evaluation and in a physical backscatter modeling
Keywords :
airborne radar; hydrological techniques; moisture measurement; radar cross-sections; radar polarimetry; radar theory; remote sensing by radar; soil; synthetic aperture radar; terrain mapping; SAR; SPARC; Surface Parameter Retrieval Collaboration; agricultural land; airborne radar; backscatter model; geophysical measurement technique; hydrology; multi-parameter E-SAR; radar polarimetry; radar remote sensing; radar scattering; soil moisture; surface roughness; synthetic aperture radar; terrain mapping; Backscatter; International collaboration; Moisture measurement; Radar remote sensing; Remote sensing; Rough surfaces; Signal analysis; Soil measurements; Soil moisture; Surface roughness;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.977917
