A modified IEM model for: scattering from soil surfaces with application to soil moisture sensing

Author

Fung, A.K. ; Dawson, M.S. ; Chen, K.S. ; Hsu, PLY ; Engman, E.T. ; Neil, P. O O ; Wang, J.

Author_Institution

Dept. of Electr. Eng., Texas Univ., Arlington, TX, USA

Volume

2

fYear

1996

fDate

27-31 May 1996

Firstpage

1297

Abstract

The IEM surface scattering model is generalized to include the possible existence of a dielectric profile such as observed in drying conditions after rain. It is shown that for such a case, the generalized signal model including this improvement in reflectivity may give better agreement with backscatter measurements for some data sets. Hence, such a model may be applied either directly for estimating soil moisture or used to generate training patterns for statistical estimators

Keywords

backscatter; electromagnetic wave scattering; geophysical techniques; hydrological techniques; moisture measurement; radar cross-sections; radar theory; remote sensing by radar; soil; backscatter; dielectric profile; drying conditions; generalized signal model; hydrology; measurement technique; modified IEM model; radar remote sensing; radar scattering; radiowave scattering; rough surface; soil moisture; soil surface; surface scattering model; Backscatter; Dielectrics; Radar scattering; Rain; Reflectivity; Rough surfaces; Soil measurements; Soil moisture; Surface roughness; Volume measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International

Conference_Location

Lincoln, NE

Print_ISBN

0-7803-3068-4

Type

conf

DOI

10.1109/IGARSS.1996.516642

Filename

516642