The radiation regime and architecture of plant stands
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...One of these kernels, Kvol(h,t,/,k), is derived from volume scattering radiative transfer models (Ross, 1981) and the other, Kgeo(h,t,/,k), from surface scattering and geometric shadow casting theory (Li & Strahler, 1992)....
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...The extinction coefficient in vegetation canopies was treated by Ross (1981) as wavelength-independent considering the size of the scattering elements (leaves, branches, twigs, etc....
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...th parameters that describe the BRDF relate to LAI [35] and surface or vegetation structure [36]....
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...Our activities in biophysical validation are closely coupled with the LAI/FPAR and land cover products and will include field sampling and radiometric measurement at a number of test sites representing different land cover types....
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...The approach adopted by the land discipline group (MODLAND) is to provide a combination of basic surface variables of spectral reflectance, albedo, and land surface temperature (LST) as well as higher order variables, such as vegetation 0196–2892/98$10.00 1998 IEEE indexes (VI’s), leaf area index (LAI), fraction of absorbed photosynthetically active radiation (FPAR), active fires, burned area, and snow and ice cover....
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...The EVI, with its extended sensitivity, is more responsive to canopy structural parameters, such as LAI....
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...The emissivity range is from 0.49 to 1.0 in steps of 0.002. th parameters that describe the BRDF relate to LAI [35] and surface or vegetation structure [36]....
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References
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"The radiation regime and architectu..." refers background in this paper
...Elucidation of the inherent laws of the architecture of both an individual plant and of a stand as a whole; discovery of interrelation between plant habitus and metabolism, between plant and environment, between geometric structure and photosynthetic activity (Loomis et al. 1967; Horn 1971); discovery of the intrinsic laws of growth and interrelation between the processes of growth and the geometric structure of a plant....
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834 citations
"The radiation regime and architectu..." refers background in this paper
...Vertical profiles of penetration function of direct solar radiation a" given by Nilson's formula (Nilson 1971a)....
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...5), exponential (D L= 0) and negative binomial (solid lines) formula (Nilson 1971a)....
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