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Soil moisture estimation of drained peat area using TOPSAR data

Hashim, Mazlan and Sim, Peter Hock Seng and Wan Kadir, Wan Hazli and Ngap, Dollah Salam (2001) Soil moisture estimation of drained peat area using TOPSAR data. Malaysian Journal of Remote Sensing & GIS, July, 2 . pp. 51-62. ISSN 1511-7049

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Abstract

Three empirical and theoretical radar backscatter models were examined in this study to characterise radar backscatter of TOPSAR data over coastal lowland of Sadong Simunjan River Basin, Sarawak, Malaysia. The main objective of this paper is to analyse the relationship between radar backscatter of TOPSAR data to degree of wetness of drained peat-land. The analysis of these models were examined using varying terrain-and-sensor related parameters namely surface roughness, dielectric constant, incidence angle, polarization and frequency, respectively. The results of this study indicate good relationship between moisture content and radar backscatter (RMSE < 5.0) in empirical model. However, this relationship is found rather restricted in the theoretical models due to its sensitivity to very moist to wet nature of the study area.

Item Type:Article
Uncontrolled Keywords:Soil moisture; TOPSAR
Subjects:Q Science > Q Science (General)
G Geography. Anthropology. Recreation > G Geography (General)
Divisions:Geoinformation Science And Engineering (Formerly known)
ID Code:1854
Deposited By: Mr Wan Hazli Wan Kadir
Deposited On:15 Mar 2007 08:47
Last Modified:01 Jun 2010 02:59

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