An inconvenient 'truth' about using sensible heat flux as a surface boundary condition in models under stably stratified regimes
| Autor: | Albert A. M. Holtslag, Gert-Jan Steeneveld, Sukanta Basu, Bas J. H. van de Wiel, Arnold F. Moene |
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| Přispěvatelé: | Fluids and Flows |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
land-surface
Meteorologie en Luchtkwaliteit 010504 meteorology & atmospheric sciences Meteorology and Air Quality Planetary boundary layer Context (language use) grenslaagmeteorologie Sensible heat Atmospheric sciences Boundary layer thickness 01 natural sciences 010305 fluids & plasmas models large-eddy simulations 0103 physical sciences greenhouse gases temperatuur eddy covariance Boundary value problem modellen 0105 earth and related environmental sciences WIMEK eddy-covariantie boundary-layer meteorology layer turbulence temperature Mechanics Boundary conditions in CFD Boundary layer Geophysics temperature-fluctuation method broeikasgassen Geology Large eddy simulation |
| Zdroj: | Acta Geophysica, 56(1), 88-99. Versita Acta Geophysica 56 (2008) 1 Acta Geophysica, 56(1), 88-99 |
| ISSN: | 1895-6572 |
| DOI: | 10.2478/s11600-007-0038-y |
| Popis: | In single column and large-eddy simulation studies of the atmospheric boundary layer, surface sensible heat flux is often used as a boundary condition. In this paper, we delineate the fundamental shortcomings of such a boundary condition in the context of stable boundary layer modelling and simulation. Using an analytical approach, we are able to show that for reliable model results of the stable boundary layer accurate surface temperature prescription or prediction is needed. As such, the use of surface heat flux as a boundary condition should be avoided in stable conditions. |
| Databáze: | OpenAIRE |
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