Correlation of temporal variations of active and passive microwave signatures from vegetation canopy

Author

Jin, Ya-Qiu ; Huang, Xing-Zhong

Author_Institution

Wave Scattering & Remote Sensing Centre, Fudan Univ., Shanghai, China

Volume

34

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

257

Lastpage

263

Abstract

Employing the model of a layer of continuous random medium with an underlying rough surface, the bistatic scattering and backscattering coefficients are calculated. By using the reciprocity, the emissivity is then calculated. Numerical results simulate the temporal variations of complementary backscattering and emissivity of the vegetation canopies. Theoretical results are compared with the measurements of active and passive remote sensing of several vegetation canopies. The correlated characteristics of microwave active and passive remote sensing are discussed

Keywords

backscatter; geophysical techniques; microwave measurement; radar cross-sections; radiometry; remote sensing; remote sensing by radar; spaceborne radar; SHF; active signature; backscatter; backscattering coefficient; bistatic scattering; continuous random medium; geophysical measurement technique; microwave emission; microwave emissivity; microwave radiometry; passive microwave signature; radar remote sensing; reciprocity; spaceborne radar scattering model; temporal variation; underlying rough surface; vegetation canopy; vegetation mapping; Backscatter; Dielectric constant; Energy conservation; Microwave measurements; Polarization; Radar scattering; Remote sensing; Rough surfaces; Surface roughness; Vegetation;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.481910

Filename

481910