Extensions To A Similarity Hypothesis For Shallow Cumulus Convection

Autor:	Andrew Brown, A. L. M. Grant
Rok vydání:	2000
Předmět:	Atmospheric Science Cumulus convection Computer simulation Meteorology Planetary boundary layer Cloud base Mathematical analysis Scalar (mathematics) Convective cloud Similarity theory Mathematics Large eddy simulation
Zdroj:	Boundary-Layer Meteorology. 97:173-190
ISSN:	1573-1472 0006-8314
DOI:	10.1023/a:1002753930764
Popis:	Grant and Brown (Quart. J. Roy. Meteorol. Soc., 125, 1913–1936) proposed a similarity hypothesis for shallow cumulus convection and evaluated it using large-eddy simulation results. Here, results from an additional independent simulation are used to provide further support for the basic theory. At the same time, some extensions to the theory are proposed. It is shown that the effects of non-zero fluxes at cloud base can be conveniently accounted for by a simple representation of the transport of scalar variance into the convecting layer. Theeffects of having more complex mean profile shapes within the layer (and hence changes in the gradient production of variance) are also investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::09b6b776f60155a66920cef50c1f4a78 https://doi.org/10.1023/a:1002753930764 Zobrazit plný text záznamu Plný text ve formátu PDF