Evaluation of a land-surface scheme at Cabauw

We study the response of the land-surface to prescribed atmospheric forcing for 31 May 1978 at Cabauw, Netherlands, using the land-surface scheme from the Coupled Atmospheric boundary layer-Plant-Soil (CAPS) model. Results from model runs show realistic daytime surface fluxes are produced using a ca...

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Bibliographic Details
Published in:Theoretical and applied climatology 2005-04, Vol.80 (2-4), p.213-227
Main Authors: Ek, M.B, Holtslag, A.A.M
Format: Article
Language:English
Subjects:
Atmospheric boundary layer
Atmospheric forcing
Atmospheric models
Boundary layers
Soil moisture
Thermal conductivity
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Summary:We study the response of the land-surface to prescribed atmospheric forcing for 31 May 1978 at Cabauw, Netherlands, using the land-surface scheme from the Coupled Atmospheric boundary layer-Plant-Soil (CAPS) model. Results from model runs show realistic daytime surface fluxes are produced using a canopy conductance formulation derived from Cabauw data (for 1987, a different year), and un-tuned parameterizations of root density (near-uniform with depth) and soil heat flux (reduced thermal conductivity through vegetation). Sensitivity of model-calculated surface heat fluxes to initial values of soil moisture is also examined. Results of this study provide the land-surface "base state" for a coupled land-atmosphere modeling study. [PUBLICATION ABSTRACT]
ISSN:0177-798X
1434-4483
DOI:10.1007/s00704-004-0101-4