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An integrated model of soil-canopy spectral radiance observations, photosynthesis, fluorescence, temperature and energy balance
1ITC International Institute for Geo-Information Science and Earth Observations, Hengelosestraat 99, P.O. Box 6, 7500 AA, Enschede, The Netherlands
2Dept. of Soil Science, The University of Reading, Whiteknights, Reading, RG6 6DW, UK
Abstract. This paper presents the model SCOPE (Soil Canopy Observation, Photochemistry and Energy fluxes), which is a vertical (1-D) integrated radiative transfer and energy balance model. It calculates the radiation and the energy balance of a vegetated land surface at the level of single leaves as well as at canopy level, and the spectrum of the outgoing radiation in the viewing direction, at a high spectral resolution over the range from 0.4 to 50 μm, thus including the visible, near and shortwave infrared, as well as the thermal domain. A special routine is dedicated to the calculation of chlorophyll fluorescence. The calculation of radiative transfer and the energy balance is fully integrated, allowing for feedback between surface temperatures, leaf chlorophyll fluorescence and radiative fluxes. Model simulations were evaluated against observations reported in the literature. The model may serve as a theoretical ground truth to derive relationships between observed spectra and physical processes at the land surface.
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Citation: van der Tol, C., Verhoef, W., Timmermans, J., Verhoef, A., and Su, Z.: An integrated model of soil-canopy spectral radiance observations, photosynthesis, fluorescence, temperature and energy balance, Biogeosciences Discuss., 6, 6025-6075, 2009. Bibtex EndNote Reference Manager
