Resposta espectral de solos em razao do angulo de visada, da umidade e da rugosidade superficial (Soil Spectral Response In Relation To Viewing Angle, Soil Moisture And Surface Roughness)

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dc.contributor.author Accio, LJ
dc.contributor.author Huete, A
dc.date.accessioned 2011-02-07T06:21:38Z
dc.date.issued 2000-01
dc.identifier.citation Pesquisa Agropecuaria Brasileira, 2000, 35 (12), pp. 2473 - 2484
dc.identifier.issn 0100-204X
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/13430
dc.description.abstract The objective of this study was to characterize the bi-directional reflectance factor (BRF) of three soil series (McAllister, Stronghold, and Epitaph) located at the Walnut Gulch Experimental Watershed (Arizona, USA) as a function of the viewing angle, soil moisture and surface roughness. Soil spectra were taken in the visible, near and mid-infrared regions, convolved to match the Landsat-TM bands, and the results were nonnalized to the Nadir response and expressed as relative BRE The anisotropic behavior varies from soil to soil and it was higher when the following conditions were taken combined or individually: shorter wavelengths, higher viewing and solar zenith angles, in the backscatteling direction, soil in the dry condition as opposed to wet condition, and in the rough surface as compared to the smooth surface of Epitaph soil series (the only soil tested for the effect of roughness). Rough and smooth surfaces of Epitaph soil, however, were better discriminated in the forward scattering direction. Differences in scale and methods used to obtain the spectral curves were pointed out as responsible for the enhancement of the anisotropic behavior of the soils for lab results as compared to field results.
dc.format Yes
dc.publisher Empresa Brasileira de Pesquisa Agropecuaria
dc.relation.isbasedon 10.1590/S0100-204X2000001200018
dc.title Resposta espectral de solos em razao do angulo de visada, da umidade e da rugosidade superficial (Soil Spectral Response In Relation To Viewing Angle, Soil Moisture And Surface Roughness)
dc.type Journal Article
dc.parent Pesquisa Agropecuaria Brasileira
dc.journal.volume 12
dc.journal.volume 35
dc.journal.number 12 en_US
dc.publocation Brazil en_US
dc.identifier.startpage 2473 en_US
dc.identifier.endpage 2484 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0706 Horticultural Production
dc.personcode 108636
dc.percentage 100 en_US
dc.classification.name Horticultural Production en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords remote sensing, reflectance, spectrometlY. en_US
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
utslib.collection.history Closed (ID: 3)


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