On the Equivalence of Two Schemes for Convective Momentum TransportSource: Journal of the Atmospheric Sciences:;2012:;Volume( 069 ):;issue: 012::page 3491Author:Romps, David M.
DOI: 10.1175/JAS-D-12-068.1Publisher: American Meteorological Society
Abstract: he Gregory?Kershaw?Inness (GKI) parameterization of convective momentum transport, which has a tunable parameter C, is shown to be identical to a parameterization with no pressure gradient force and a mass flux smaller by a factor of 1 ? C. Using cloud-resolving simulations, the transilient matrix for momentum is diagnosed for deep convection in radiative?convective equilibrium. Using this transilient matrix, it is shown that the GKI scheme underestimates the compensating subsidence of momentum by a factor of 1 ? C, as predicted. This result is confirmed using a large-eddy simulation.
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contributor author | Romps, David M. | |
date accessioned | 2017-06-09T16:56:11Z | |
date available | 2017-06-09T16:56:11Z | |
date copyright | 2012/12/01 | |
date issued | 2012 | |
identifier issn | 0022-4928 | |
identifier other | ams-76707.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4219184 | |
description abstract | he Gregory?Kershaw?Inness (GKI) parameterization of convective momentum transport, which has a tunable parameter C, is shown to be identical to a parameterization with no pressure gradient force and a mass flux smaller by a factor of 1 ? C. Using cloud-resolving simulations, the transilient matrix for momentum is diagnosed for deep convection in radiative?convective equilibrium. Using this transilient matrix, it is shown that the GKI scheme underestimates the compensating subsidence of momentum by a factor of 1 ? C, as predicted. This result is confirmed using a large-eddy simulation. | |
publisher | American Meteorological Society | |
title | On the Equivalence of Two Schemes for Convective Momentum Transport | |
type | Journal Paper | |
journal volume | 69 | |
journal issue | 12 | |
journal title | Journal of the Atmospheric Sciences | |
identifier doi | 10.1175/JAS-D-12-068.1 | |
journal fristpage | 3491 | |
journal lastpage | 3500 | |
tree | Journal of the Atmospheric Sciences:;2012:;Volume( 069 ):;issue: 012 | |
contenttype | Fulltext |