On the retrieval of soil moisture from SAR data over bare soils

Author

Pasquariello, G. ; Satalino, G. ; Mattia, F. ; Casarano, D. ; Posa, F. ; Souyris, J.C. ; Le Toan, T.

Author_Institution

IESI-CNR, Bari, Italy

Volume

3

fYear

1997

fDate

3-8 Aug 1997

Firstpage

1272

Abstract

The purpose of this paper is to investigate the possibility of estimating soil moisture content from single angle and single frequency SAR data. To teach this objective, a priori information such as profile height std is assumed. An inversion technique based on a neural approach trained with the IEM model is presented and its performances are discussed. Two sources of errors in the final estimates are analyzed. Errors due to the limited input information and errors due to possible failures of IEM in predicting scattering from natural surfaces

Keywords

geophysical techniques; hydrological techniques; moisture measurement; radar cross-sections; radar theory; remote sensing by radar; soil; synthetic aperture radar; IEM; SAR; a priori information; bare soil; hydrology; integral equation method; inversion; measurement technique; neural net; profile height; radar remote sensing; single angle method; single frequency method; soil moisture; synthetic aperture radar; water content; Frequency estimation; Geophysical measurements; Information retrieval; Neural networks; Polarization; Rough surfaces; Scattering; Soil moisture; Surface roughness; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International

Print_ISBN

0-7803-3836-7

Type

conf

DOI

10.1109/IGARSS.1997.606420

Filename

606420