globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2017MS001175
Scopus记录号: 2-s2.0-85034768056
论文题名:
Hindcasting the Madden-Julian Oscillation With a New Parameterization of Surface Heat Fluxes
作者: Chen J; , Deng Y; , Wang J; , Lin W
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:7
起始页码: 2696
结束页码: 2709
语种: 英语
英文关键词: Boundary layers ; Climatology ; Entropy ; Heat convection ; Precipitation (chemical) ; Ships ; Weather forecasting ; Coherent propagation ; Eastward propagation ; In-situ observations ; Madden-Julian oscillation ; Maximum entropy productions ; Precipitable water ; Surface heat fluxes ; Weather research and forecasting models ; Heat flux ; atmospheric convection ; boundary layer ; evaporation ; experimental study ; heat flux ; hindcasting ; Madden-Julian oscillation ; maximum entropy analysis ; parameterization ; precipitation (climatology) ; weather forecasting
英文摘要: The recently developed maximum entropy production (MEP) model, an alternative parameterization of surface heat fluxes, is incorporated into the Weather Research and Forecasting (WRF) model. A pair of WRF cloud-resolving experiments (5 km grids) using the bulk transfer model (WRF default) and the MEP model of surface heat fluxes are performed to hindcast the October Madden-Julian oscillation (MJO) event observed during the 2011 Dynamics of the MJO (DYNAMO) field campaign. The simulated surface latent and sensible heat fluxes in the MEP and bulk transfer model runs are in general consistent with in situ observations from two research vessels. Compared to the bulk transfer model, the convection envelope is strengthened in the MEP run and shows a more coherent propagation over the Maritime Continent. The simulated precipitable water in the MEP run is in closer agreement with the observations. Precipitation in the MEP run is enhanced during the active phase of the MJO with significantly reduced regional dry and wet biases. Large-scale ocean evaporation is stronger in the MEP run leading to stronger boundary layer moistening to the east of the convection center, which facilitates the eastward propagation of the MJO. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75712
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, United States; Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou, Guangdong, China

Recommended Citation:
Chen J,, Deng Y,, Wang J,et al. Hindcasting the Madden-Julian Oscillation With a New Parameterization of Surface Heat Fluxes[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(7)
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