publication . Other literature type . Article . 2018

Fast matrix treatment of 3-D radiative transfer in vegetation canopies: SPARTACUS-Vegetation 1.1

Robin Hogan; Renato Braghiere; Tristan Quaife;
Open Access English
  • Published: 23 Jan 2018
  • Country: United Kingdom
<jats:p>Abstract. A fast scheme is described to compute the 3-D interaction of solar radiation with vegetation canopies. The canopy is split in the horizontal plane into one clear region and one or more vegetated regions, and the two-stream equations are used for each, but with additional terms representing lateral exchange of radiation between regions that are proportional to the area of the interface between them. The resulting coupled set of ordinary differential equations is solved using the matrix-exponential method. The scheme is compared to solar Monte Carlo calculations for idealized scenes from the RAMI4PILPS intercomparison project, for open forest can...
arXiv: Physics::GeophysicsAstrophysics::Solar and Stellar Astrophysics
free text keywords: Geology, QE1-996.5
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