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Single-column model intercomparison for a stably stratified atmospheric boundary layer
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2006 (English)In: Boundary-layer Meteorology, ISSN 0006-8314, E-ISSN 1573-1472, Vol. 118, no 2, 273-303 p.Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2006. Vol. 118, no 2, 273-303 p.
Keyword [en]
GABLS, intercomparison, mixing coefficients, single-column models, stably stratified flows, turbulence parameterizations
National Category
Meteorology and Atmospheric Sciences
Research subject
Meteorology
Identifiers
URN: urn:nbn:se:smhi:diva-801DOI: 10.1007/s10546-005-3780-1ISI: 000238631800003OAI: oai:DiVA.org:smhi-801DiVA: diva2:806998
Available from: 2015-04-22 Created: 2015-04-22 Last updated: 2015-04-22Bibliographically approved

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