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Single-column model intercomparison for a stably stratified atmospheric boundary layer
Vise andre og tillknytning
2006 (engelsk)Inngår i: Boundary-layer Meteorology, ISSN 0006-8314, E-ISSN 1573-1472, Vol. 118, nr 2, s. 273-303Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The parameterization of the stably stratified atmospheric boundary layer is a difficult issue, having a significant impact on medium-range weather forecasts and climate integrations. To pursue this further, a moderately stratified Arctic case is simulated by nineteen single-column turbulence schemes. Statistics from a large-eddy simulation intercomparison made for the same case by eleven different models are used as a guiding reference. The single-column parameterizations include research and operational schemes from major forecast and climate research centres. Results from first-order schemes, a large number of turbulence kinetic energy closures, and other models were used. There is a large spread in the results; in general, the operational schemes mix over a deeper layer than the research schemes, and the turbulence kinetic energy and other higher-order closures give results closer to the statistics obtained from the large-eddy simulations. The sensitivities of the schemes to the parameters of their turbulence closures are partially explored.

sted, utgiver, år, opplag, sider
2006. Vol. 118, nr 2, s. 273-303
Emneord [en]
GABLS, intercomparison, mixing coefficients, single-column models, stably stratified flows, turbulence parameterizations
HSV kategori
Forskningsprogram
Meteorologi
Identifikatorer
URN: urn:nbn:se:smhi:diva-801DOI: 10.1007/s10546-005-3780-1ISI: 000238631800003OAI: oai:DiVA.org:smhi-801DiVA, id: diva2:806998
Tilgjengelig fra: 2015-04-22 Laget: 2015-04-22 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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Totalt: 75 treff
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