Inferring the roughness of desert rocky surfaces from their bidirectional reflectance data

A. Karnieli, J. Cierniewski

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Bare soil surfaces show variation in their upward radiance depending on the direction of irradiating solar energy and the direction along which the reflected energy is viewed. Desert surfaces can exhibit both a backscattering and forward scattering characteristics. The authors tried to infer the roughness of desert rocky surfaces from their bidirectional reflectance data sets, using a geometrical reflectance model inversion technique. To achieve this, virtual equivalents of the surfaces were generated. These virtual surfaces simulate real surfaces with equal-sized opaque spheroids regularly dispersed on freely sloping plane. The capabilities of the model inversion were tested on semiarid surfaces of the Negev desert including rough rocks and smooth dune sands.

Original languageEnglish
Pages (from-to)171-176
Number of pages6
JournalAdvances in Space Research
Volume28
Issue number1
DOIs
StatePublished - 1 Jan 2001

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