Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions
[1] Current climate models have shown systematic simulation biases of low clouds that have cast great uncertainties on the climate sensitivity of these models. Among them is the deficient amount of low clouds over the storm tracks. This study uses the NCAR Community Atmospheric Model (CAM) and the W...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.578.8345 2023-05-15T17:32:40+02:00 Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions Wuyin Lin Minghua Zhang Jingbo Wu The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.8345 http://users.df.uba.ar/llamedo/compartido/WRF/lin 2009.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.8345 http://users.df.uba.ar/llamedo/compartido/WRF/lin 2009.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://users.df.uba.ar/llamedo/compartido/WRF/lin 2009.pdf text ftciteseerx 2016-01-08T12:53:09Z [1] Current climate models have shown systematic simulation biases of low clouds that have cast great uncertainties on the climate sensitivity of these models. Among them is the deficient amount of low clouds over the storm tracks. This study uses the NCAR Community Atmospheric Model (CAM) and the Weather Research and Forecasting model (WRF) to study the cause of the failure of the global model in simulating low clouds associated with a frontal passage over the North Atlantic. The global model is shown to simulate the large-scale circulation that can support the boundary layer instabilities responsible for the observed clouds, but because the global model does not resolve the unstable modes, the instability cannot be realized. The resolution requirement of cloud simulations is discussed. This study also demonstrates the feasibility of cloud parameterization by nesting high resolution models into coarse resolution models to tap into the dynamical properties of the large-scale flows. Text North Atlantic Unknown |
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[1] Current climate models have shown systematic simulation biases of low clouds that have cast great uncertainties on the climate sensitivity of these models. Among them is the deficient amount of low clouds over the storm tracks. This study uses the NCAR Community Atmospheric Model (CAM) and the Weather Research and Forecasting model (WRF) to study the cause of the failure of the global model in simulating low clouds associated with a frontal passage over the North Atlantic. The global model is shown to simulate the large-scale circulation that can support the boundary layer instabilities responsible for the observed clouds, but because the global model does not resolve the unstable modes, the instability cannot be realized. The resolution requirement of cloud simulations is discussed. This study also demonstrates the feasibility of cloud parameterization by nesting high resolution models into coarse resolution models to tap into the dynamical properties of the large-scale flows. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Wuyin Lin Minghua Zhang Jingbo Wu |
spellingShingle |
Wuyin Lin Minghua Zhang Jingbo Wu Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions |
author_facet |
Wuyin Lin Minghua Zhang Jingbo Wu |
author_sort |
Wuyin Lin |
title |
Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions |
title_short |
Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions |
title_full |
Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions |
title_fullStr |
Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions |
title_full_unstemmed |
Simulation of low clouds from the CAM and the regional WRF with multiple nested resolutions |
title_sort |
simulation of low clouds from the cam and the regional wrf with multiple nested resolutions |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.8345 http://users.df.uba.ar/llamedo/compartido/WRF/lin 2009.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://users.df.uba.ar/llamedo/compartido/WRF/lin 2009.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.8345 http://users.df.uba.ar/llamedo/compartido/WRF/lin 2009.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766130892079628288 |