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Soil moisture detection using KOMPSAT-5 SAR data
- Authors
- Oh, Y.; Kwon, S.-G.; Hwang, J.-H.
- Issue Date
- 2010
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- KOMPSAT-5; Soil moisture; Surface roughness; Vegetation density
- Citation
- International Geoscience and Remote Sensing Symposium (IGARSS), pp.1250 - 1253
- Journal Title
- International Geoscience and Remote Sensing Symposium (IGARSS)
- Start Page
- 1250
- End Page
- 1253
- ISSN
- 0000-0000
- Abstract
- The applicability of the KOMPSAT-5 (Korea Multi-Purpose Satellite-5) SAR on soil moisture detection is addressed in this paper. At first, the penetration into and reflection from bare soil surfaces at X-band are compared with those at L-band for homogeneous and inhomogeneous moisture profiles. The sensitivities of the X-band radar backscatter on 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 an X-band radar at lower incidence angles, where the upper limit of the incidence angles depends on vegetation density. © 2010 IEEE.
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