Passive Microwave Remote Sensing of an Anisotropic Random-Medium Layer

Jay Kyoon Lee, Jin Au Kong

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

The principle of reciprocity is invoked to calculate the brightness temperatures for passive microwave remote sensing of a two-layer anisotropic random medium. The bistatic scattering coefficients are first computed with the Born approximation and then integrated over the upper hemisphere to be subtracted from unity, in order to obtain the emissivity for the random-medium layer. The theoretical results are illustrated by plotting the emissivities as functions of viewing angles and polarizations. They are used to interpret remote sensing data obtained from vegetation canopy where the aniostropic random-medium model applies. Field measurements with corn stalks arranged in various configurations with preferred azimuthal directions are successfully interpreted with this model.

Original languageEnglish (US)
Pages (from-to)924-932
Number of pages9
JournalIEEE Transactions on Geoscience and Remote Sensing
VolumeGE-23
Issue number6
DOIs
StatePublished - 1985

    Fingerprint

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Electrical and Electronic Engineering
  • Computers in Earth Sciences
  • Geochemistry and Petrology
  • Geophysics

Cite this