contributor author | Craig, George C. | |
contributor author | Dörnbrack, Andreas | |
date accessioned | 2017-06-09T16:22:45Z | |
date available | 2017-06-09T16:22:45Z | |
date copyright | 2008/12/01 | |
date issued | 2008 | |
identifier issn | 0022-4928 | |
identifier other | ams-66781.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4208154 | |
description abstract | Systematic numerical experiments were conducted to determine the spatial resolution required to resolve a moist thermal show convergence at a scale proportional to the smaller of the initial thermal diameter D0 and a buoyancy length scale Lbuoy. The buoyancy length scale Lbuoy = ?T0/?Γ (?T0 is the initial buoyancy excess of the thermal and ?Γ is the ambient stratification) describes the maximum vertical displacement that can be induced against the stratification in the environment by buoyancy-driven pressure perturbations in the cloud and, thus, the maximum scale of eddies that cross the cloud boundary. For typical atmospheric conditions in which the cloud size D0 is larger than Lbuoy, numerical simulations of the mixing processes in cumulus clouds must resolve Lbuoy. | |
publisher | American Meteorological Society | |
title | Entrainment in Cumulus Clouds: What Resolution is Cloud-Resolving? | |
type | Journal Paper | |
journal volume | 65 | |
journal issue | 12 | |
journal title | Journal of the Atmospheric Sciences | |
identifier doi | 10.1175/2008JAS2613.1 | |
journal fristpage | 3978 | |
journal lastpage | 3988 | |
tree | Journal of the Atmospheric Sciences:;2008:;Volume( 065 ):;issue: 012 | |
contenttype | Fulltext | |