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Optical Engineering

Thermal infrared hot spot and dependence on canopy geometry
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Paper Abstract

For simple homogeneous canopies, we predict canopy thermal infrared hot spot variations of 2°C at the surface with respect to nadir viewing. Dependence on leaf size is weak as long as the ratio of leaf size to canopy height is maintained. However, the angular width of the hot spot increases as the ratio of leaf diameter to canopy height increases. Atmospheric effects minimize but do not eliminate the TIR hot spot at satellite altitudes.

Paper Details

Date Published: 1 August 2001
PDF: 3 pages
Opt. Eng. 40(8) doi: 10.1117/1.1387990
Published in: Optical Engineering Volume 40, Issue 8
Show Author Affiliations
James Alan Smith, NASA Goddard Space Flight Ctr. (United States)
Jerrell R. Ballard, U.S. Army Engineer Research and Development Ctr. (United States)

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