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BOREAS TE-18 Geosail Canopy Reflectance Model

Data Set Overview

Data setBOREAS TE-18 Geosail Canopy Reflectance Model
Release date2000-03-24
ProjectBoreal Ecosystem-Atmosphere Study
Time Period1993-01-01 to 1996-12-31


The GEOSAIL model was created by combining the SAIL (Scattering from Arbitrarily Inclined Leaves) model with the Jasinski geometric model to simulate canopy spectral reflectance and absorption of photosynthetically active radiation for discontinuous canopies. Tree shapes are described by cylinders or cones distributed over a plane. Spectral reflectance and transmittance of trees are calculated from the SAIL model to determine the reflectance of the three components used in the geometric model: illuminated canopy, illuminated background, shadowed canopy, and shadowed background.


Data set reference document


Huemmrich, K.F. 2000. BOREAS TE-18 Geosail Canopy Reflectance Model. ORNL DAAC, Oak Ridge, Tennessee, USA.
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Boreal Ecosystem-Atmosphere Study: The Boreal Ecosystem-Atmosphere Study was a large-scale international interdisciplinary experiment in the boreal forests of central Canada. Its focus was improving our understanding of the exchanges of radiative energy, sensible heat, water, CO2 and trace gases between the boreal forest and the lower atmosphere. A primary objective of BOREAS was to collect the data needed to improve computer simulation models of the important processes controlling these exchanges so that scientists can anticipate the effects of global change, principally altered temperature and precipitation patterns, on the biome.

Project data set list for Boreal Ecosystem-Atmosphere Study.

Boreal Ecosystem-Atmosphere Study has 3 available companion files.
  • two_d_ref.txt
  • site_ref.txt

Companion Files

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  • TE18_GeoSail.pdf
  • TE18_GeoSail.doc
  • TE18_GeoSail.txt

Data Files

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Data File (Granule)File SizeDates
aspen_in.dat 379 B 1993-01-01 - 1996-12-31
aspen_out.dat 1.6 KB 1993-01-01 - 1996-12-31
geosaild.for 27.7 KB 1993-01-01 - 1996-12-31
spruce_in.dat 379 B 1993-01-01 - 1996-12-31
spruce_out.dat 1.6 KB 1993-01-01 - 1996-12-31


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