Radiative transfer modeling of a coniferous canopy characterized by airborne remote sensing

Essery, Richard, Bunting, Peter, Hardy, Janet, Link, Tim, Marks, Danny, Melloh, Rae, Pomeroy, John, Rowlands, Aled and Rutter, Nick (2008) Radiative transfer modeling of a coniferous canopy characterized by airborne remote sensing. Journal of Hydrometeorology, 9 (2). pp. 228-241. ISSN 1525-755X

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Abstract

Solar radiation beneath a forest canopy can have large spatial variations, but this is frequently neglected in radiative transfer models for large-scale applications. To explicitly model spatial variations in subcanopy radiation, maps of canopy structure are required. Aerial photography and airborne laser scanning are used to map tree locations, heights, and crown diameters for a lodgepole pine forest in Colorado as inputs to a spatially explicit radiative transfer model. Statistics of subcanopy radiation simulated by the model are compared with measurements from radiometer arrays, and scaling of spatial statistics with temporal averaging and array size is discussed. Efficient parameterizations for spatial averages and standard deviations of subcanopy radiation are developed using parameters that can be obtained from the model or hemispherical photography.

Item Type:	Article
Subjects:	F800 Physical and Terrestrial Geographical and Environmental Sciences
Department:	Faculties > Engineering and Environment > Geography and Environmental Sciences
Depositing User:	EPrint Services
Date Deposited:	04 Sep 2009 11:05
Last Modified:	13 Oct 2019 00:24
URI:	http://nrl.northumbria.ac.uk/id/eprint/3318

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