Evaporation and storage of intercepted rain analysed by comparing two models applied to a boreal forest

At the central Northern hemisphere climate-Processes land-surface Experiment (NOPEX) site in Sweden, rainfall and throughfall were measured, along with evaporation rate and meteorological variables, during the summer of 1995. The forest stand consisted of Norway spruce, Scots pine, and a few specime...

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Bibliographic Details
Published in:Agricultural and forest meteorology 1999-12, Vol.98 (1-4), p.595-604
Main Authors: Lankreijer, H, Lundberg, A, Grelle, A, Lindroth, A, Seibert, J
Format: Article
Language:English
Subjects:
aerodynamics
Applied Geology
boreal forests
canopy
comparisons
evaporation
interception
mathematical models
measurement
precipitation
rain
simulation models
throughfall
Tillämpad geologi
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Summary:At the central Northern hemisphere climate-Processes land-surface Experiment (NOPEX) site in Sweden, rainfall and throughfall were measured, along with evaporation rate and meteorological variables, during the summer of 1995. The forest stand consisted of Norway spruce, Scots pine, and a few specimens of birch. The data were used to evaluate two interception models: the Rutter Gash analytical model and a model based on an exponential saturation equation. Assuming correct measurements of rainfall, throughfall, and evaporation during the storms, the models were used in reverse mode to calculate minimum and maximum storage capacity. Results showed that the evaporation rate was very low during storms, especially during extended periods of rainfall. Both models overestimated simulated interception when the measured evaporation rate during rainfall and derived storage values were used.
ISSN:0168-1923
1873-2240
1873-2240
DOI:10.1016/S0168-1923(99)00126-4