Cloud and Precipitation Parameterization in a Meso-Gamma-Scale Operational Weather Prediction ModelSource: Monthly Weather Review:;2009:;volume( 137 ):;issue: 011::page 3960Author:Gerard, Luc
,
Piriou, Jean-Marcel
,
Brožková, Radmila
,
Geleyn, Jean-François
,
Banciu, Doina
DOI: 10.1175/2009MWR2750.1Publisher: American Meteorological Society
Abstract: The paper assesses the difficulties of running an operational NWP model in the resolution range of 3?8 km. In this case, deep convection cells are neither much smaller than the grid box as assumed by most parameterization schemes, nor completely resolved as would be required for them to be treated explicitly. A specific approach is proposed, with an integrated sequential treatment of resolved condensation, deep convection, and microphysics together with the use of prognostic variables. It currently allows for the production of consistent and realistic results at resolutions ranging from a few tens of kilometers down to less than 4 km. Model skill scores and an example of an operational forecast at different resolutions are presented.
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contributor author | Gerard, Luc | |
contributor author | Piriou, Jean-Marcel | |
contributor author | Brožková, Radmila | |
contributor author | Geleyn, Jean-François | |
contributor author | Banciu, Doina | |
date accessioned | 2017-06-09T16:31:46Z | |
date available | 2017-06-09T16:31:46Z | |
date copyright | 2009/11/01 | |
date issued | 2009 | |
identifier issn | 0027-0644 | |
identifier other | ams-69469.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4211141 | |
description abstract | The paper assesses the difficulties of running an operational NWP model in the resolution range of 3?8 km. In this case, deep convection cells are neither much smaller than the grid box as assumed by most parameterization schemes, nor completely resolved as would be required for them to be treated explicitly. A specific approach is proposed, with an integrated sequential treatment of resolved condensation, deep convection, and microphysics together with the use of prognostic variables. It currently allows for the production of consistent and realistic results at resolutions ranging from a few tens of kilometers down to less than 4 km. Model skill scores and an example of an operational forecast at different resolutions are presented. | |
publisher | American Meteorological Society | |
title | Cloud and Precipitation Parameterization in a Meso-Gamma-Scale Operational Weather Prediction Model | |
type | Journal Paper | |
journal volume | 137 | |
journal issue | 11 | |
journal title | Monthly Weather Review | |
identifier doi | 10.1175/2009MWR2750.1 | |
journal fristpage | 3960 | |
journal lastpage | 3977 | |
tree | Monthly Weather Review:;2009:;volume( 137 ):;issue: 011 | |
contenttype | Fulltext |