Soil and Atmosphere Influences on the Spectra of Partial Canopies

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dc.contributor.author Huete, Alfredo en_US
dc.contributor.author Jackson, R. en_US
dc.contributor.editor en_US
dc.date.accessioned 2011-02-07T06:22:29Z
dc.date.available 2011-02-07T06:22:29Z
dc.date.issued 1988 en_US
dc.identifier 2009001561 en_US
dc.identifier.citation Huete Alfredo and Jackson R. 1988, 'Soil and Atmosphere Influences on the Spectra of Partial Canopies', Elsevier, vol. 25, no. 1, pp. 89-105. en_US
dc.identifier.issn 0034-4257 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/13522
dc.description.abstract An atmospheric radiant transfer model was used to compare ground-measured radiances over partially vegetated canopies with their simulated responses at the top of a clear (100 km meteorological range) and a turbid (10 km) atmosphere. Radiance measurements in the first four bands of the Thematic Mapper were taken over incomplete cotton (Gossypium hirsutum L.) and Lehmann lovegrass (Eragrostis lehmanniana Nees) canopies with different soil backgrounds separately inserted underneath. Atmospheric influences on the spectra of partial canopies were found to be significantly dependent on the ?brightness? of the underlying soil. The change in canopy red and near-infrared radiance between the ground and the top of the atmosphere was such that an increase, decrease, or no change could be observed, depending on the magnitude of the canopy substrate contribution. Both increasing soil ?brightness? and atmospheric turbidity lowered the ratio (RVI) and normalized difference vegetation index values (NDVI). Consequently, atmospheric-induced RVI and NDVI degradation were greatest over canopies with darker soils and were not detectable over canopies with light-colored soils. In contrast, soil and atmospheric effects on the perpendicular vegetation index were independent with atmosphere degradation being similar across all soil backgrounds. Soil influences on vegetation indices from partial canopies were found to be of similar magnitude to those attributed to the atmosphere for the range of soil and atmosphere conditions examined here. en_US
dc.language en_US
dc.publisher Elsevier en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/0034-4257(88)90043-0 en_US
dc.title Soil and Atmosphere Influences on the Spectra of Partial Canopies en_US
dc.parent Remote Sensing Of Environment en_US
dc.journal.volume 25 en_US
dc.journal.number 1 en_US
dc.publocation United States en_US
dc.identifier.startpage 89 en_US
dc.identifier.endpage 105 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 090900 en_US
dc.personcode 108636 en_US
dc.personcode 0000058986 en_US
dc.percentage 100 en_US
dc.classification.name Geomatic Engineering 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 en_US


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