Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 775-786 |
| Seitenumfang | 12 |
| Fachzeitschrift | Bulletin of the American Meteorological Society |
| Jahrgang | 87 |
| Ausgabenummer | 6 |
| Frühes Online-Datum | 1 Juni 2006 |
| Publikationsstatus | Veröffentlicht - Juni 2006 |
Abstract
The representation of sudgrid-scale surface heterogeneities in numerical weather and climate models has been a challenging problem for more than a decade. The Evaporation at Grid and Pixel Scale (EVA-GRIPS) project adds to the numerous studies on vegetation-atmosphere interaction processes through a comprehensive field campaign and through simulation studies with land surface schemes and mesoscale models. The mixture of surface types in the test area in eastern Germany is typical for larger parts of northern Central Europe. The spatial scale considered corresponds to the grid scale of a regional atmospheric weather prediction or climate model and to the pixel scale of satellite images. Area-averaged fluxes derived from point measurements, scintillometer measurements, and a helicopter-borne turbulence probe were widely consistent with respect to the sensible heat flux. The latent heat flux from the scintillometer measurements is systematically higher than the eddy covariance data. Fluxes derived from numerical simulations proved the so-called mosaic approach to be an appropriate parameterization for subgrid heterogeneity.
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in: Bulletin of the American Meteorological Society, Jahrgang 87, Nr. 6, 06.2006, S. 775-786.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Evaporation over a heterogeneous land surface
T2 - The EVA-GRIPS Project
AU - Mengelkamp, Heinz Theo
AU - Beyrich, F.
AU - Heinemann, G.
AU - Ament, F.
AU - Bange, J.
AU - Berger, F.
AU - Bösenberg, J.
AU - Foken, T.
AU - Hennemuth, B.
AU - Heret, C.
AU - Huneke, S.
AU - Johnsen, K. P.
AU - Kerschgens, M.
AU - Kohsiek, W.
AU - Leps, J. P.
AU - Liebethal, C.
AU - Lohse, H.
AU - Mauder, M.
AU - Meijninger, W.
AU - Raasch, S.
AU - Simmer, C.
AU - Spieß, T.
AU - Tittebrand, A.
AU - Uhlenbrock, J.
AU - Zittel, P.
N1 - Funding information: The authors would like to express their gratitude to the German Ministry of Educa- tion and Research, which funded the project as part of the German Climate Research Program (DEKLIM) under Grant 01LD0103. Special thanks go to all those who assisted in the field experiment and to two anonymous reviewers for helpful comments.
PY - 2006/6
Y1 - 2006/6
N2 - The representation of sudgrid-scale surface heterogeneities in numerical weather and climate models has been a challenging problem for more than a decade. The Evaporation at Grid and Pixel Scale (EVA-GRIPS) project adds to the numerous studies on vegetation-atmosphere interaction processes through a comprehensive field campaign and through simulation studies with land surface schemes and mesoscale models. The mixture of surface types in the test area in eastern Germany is typical for larger parts of northern Central Europe. The spatial scale considered corresponds to the grid scale of a regional atmospheric weather prediction or climate model and to the pixel scale of satellite images. Area-averaged fluxes derived from point measurements, scintillometer measurements, and a helicopter-borne turbulence probe were widely consistent with respect to the sensible heat flux. The latent heat flux from the scintillometer measurements is systematically higher than the eddy covariance data. Fluxes derived from numerical simulations proved the so-called mosaic approach to be an appropriate parameterization for subgrid heterogeneity.
AB - The representation of sudgrid-scale surface heterogeneities in numerical weather and climate models has been a challenging problem for more than a decade. The Evaporation at Grid and Pixel Scale (EVA-GRIPS) project adds to the numerous studies on vegetation-atmosphere interaction processes through a comprehensive field campaign and through simulation studies with land surface schemes and mesoscale models. The mixture of surface types in the test area in eastern Germany is typical for larger parts of northern Central Europe. The spatial scale considered corresponds to the grid scale of a regional atmospheric weather prediction or climate model and to the pixel scale of satellite images. Area-averaged fluxes derived from point measurements, scintillometer measurements, and a helicopter-borne turbulence probe were widely consistent with respect to the sensible heat flux. The latent heat flux from the scintillometer measurements is systematically higher than the eddy covariance data. Fluxes derived from numerical simulations proved the so-called mosaic approach to be an appropriate parameterization for subgrid heterogeneity.
UR - http://www.scopus.com/inward/record.url?scp=33745954918&partnerID=8YFLogxK
U2 - 10.1175/BAMS-87-6-775
DO - 10.1175/BAMS-87-6-775
M3 - Article
AN - SCOPUS:33745954918
VL - 87
SP - 775
EP - 786
JO - Bulletin of the American Meteorological Society
JF - Bulletin of the American Meteorological Society
SN - 0003-0007
IS - 6
ER -