DocumentCode :
1431501
Title :
Forward electromagnetic scattering models for sea ice
Author :
Golden, K.M. ; Cheney, M. ; Ding, Kung-Hau ; Fung, A.K. ; Grenfell, Thomas C. ; Isaacson, D. ; Kong, Jin Au ; Nghiem, Son V. ; Sylvester, J. ; Winebrenner, D.P.
Author_Institution :
Dept. of Math., Utah Univ., Salt Lake City, UT, USA
Volume :
36
Issue :
5
fYear :
1998
fDate :
9/1/1998 12:00:00 AM
Firstpage :
1655
Lastpage :
1674
Abstract :
Recent advances in forward modeling of the electromagnetic scattering properties of sea ice are presented. In particular, the principal results include the following: (1) approximate calculations of electromagnetic scattering from multilayer random media with rough interfaces, based on the distorted Born approximation and radiative transfer (RT) theory; (2) comprehensive theory of the effective complex permittivity of sea ice based on rigorous bounds in the quasi-static case and strong fluctuation theory in the weakly scattering regime; (3) rigorous analysis of the Helmholtz equation and its solutions for idealized sea ice models, which has led in the one dimensional (1D) case to nonlinear generalizations of classical theorems in Fourier analysis. The forward models considered incorporate many detailed features of the sea ice system and compare well with experimental data. The results have advanced the general theory of scattering of electromagnetic waves from complex media as well as homogenization theory, which relates bulk properties of composite media to their microstructural characteristics. Furthermore, the results have direct application to microwave remote sensing and serve as the basis for inverse algorithms for reconstructing the physical properties of sea ice from scattering data
Keywords :
oceanographic techniques; radar cross-sections; radar theory; remote sensing by radar; sea ice; Fourier analysis; Helmholtz equation; approximate calculation; backscatter; complex media; distorted Born approximation; effective complex permittivity; forward electromagnetic scattering model; forward model; idealized sea ice model; measurement technique; microstructural characteristics; multilayer random media; ocean; quasi-static case; radar scattering; radiative transfer theory; remote sensing; rough interface; sea ice; sea surface; strong fluctuation theory; weakly scattering regime; Approximation methods; Electromagnetic analysis; Electromagnetic modeling; Electromagnetic scattering; Fluctuations; Nonhomogeneous media; Nonlinear distortion; Permittivity; Random media; Sea ice;
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
Publisher :
ieee
ISSN :
0196-2892
Type :
jour
DOI :
10.1109/36.718637
Filename :
718637
Link To Document :
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