Title :
Soil moisture detection algorithm at X-band
Author :
Oh, Yisok ; Kwon, Soon-Gu ; Hwang, Ji-Hwan
Author_Institution :
Dept. of Electron. Inf. & Commun. Eng., Hongik Univ., Seoul, South Korea
Abstract :
The applicability of the KOMPSAT-5 (Korea Multi-Purpose Satellite-5) SAR on soil moisture detection is addressed in this paper. The sensitivities of the X-band radar backscatter on surface roughness and soil moisture are examined for rough bare soil surfaces. Then, the sensitivities of the X-band radar backscatter on the soil moisture of vegetated surfaces are also examined for various vegetation densities and incidence angles. The applicability of an X-band radar for soil moisture detection may be as good as L-band radar for bare soil surfaces. For vegetated surfaces, the soil moisture can be detected using X-band radar at lower incidence angles, where the upper limit of the range of incidence angles depends on the vegetation density.
Keywords :
remote sensing by radar; soil; vegetation; vegetation mapping; KOMPSAT-5 SAR; Korea MultiPurpose Satellite-5; L-band radar; X-band radar backscatter; soil moisture detection algorithm; soil surfaces; surface roughness; vegetated surfaces; vegetation densities; Backscatter; Rough surfaces; Soil measurements; Soil moisture; Surface roughness; Vegetation mapping; KOMPSAT-5; soil moisture; surface roughness; vegetation density;
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4577-1351-4
