DOI: 10.1016/j.atmosres.2018.01.008
Scopus记录号: 2-s2.0-85044258759
论文题名: GHI calculation sensitivity on microphysics, land- and cumulus parameterization in WRF over the Reunion Island
作者: De Meij A. ; Vinuesa J.-F. ; Maupas V.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 204 起始页码: 12
结束页码: 20
语种: 英语
英文关键词: Cumulus parameterization
; GHI
; Microphysics
; WRF
Scopus关键词: Clouds
; Parameterization
; Surface measurement
; Weather forecasting
; Cumulus parameterization
; Cumulus parameterization schemes
; Land surface models
; Microphysics
; Model sensitivity
; Number concentration
; Sensitivity Simulation
; Weather research
; Landforms
英文摘要: The sensitivity of different microphysics and dynamics schemes on calculated global horizontal irradiation (GHI) values in the Weather Research Forecasting (WRF) model is studied. 13 sensitivity simulations were performed for which the microphysics, cumulus parameterization schemes and land surface models were changed. Firstly we evaluated the model's performance by comparing calculated GHI values for the Base Case with observations for the Reunion Island for 2014. In general, the model calculates the largest bias during the austral summer. This indicates that the model is less accurate in timing the formation and dissipation of clouds during the summer, when higher water vapor quantities are present in the atmosphere than during the austral winter. Secondly, the model sensitivity on changing the microphysics, cumulus parameterization and land surface models on calculated GHI values is evaluated. The sensitivity simulations showed that changing the microphysics from the Thompson scheme (or Single-Moment 6-class scheme) to the Morrison double-moment scheme, the relative bias improves from ~45% to ~10%. The underlying reason for this improvement is that the Morrison double-moment scheme predicts the mass and number concentrations of five hydrometeors, which help to improve the calculation of the densities, size and lifetime of the cloud droplets. While the single moment schemes only predicts the mass for less hydrometeors. Changing the cumulus parameterization schemes and land surface models does not have a large impact on GHI calculations. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108937
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Noveltis, Sustainable Development, 153, Rue du Lac, Labege, F-31670, France
Recommended Citation:
De Meij A.,Vinuesa J.-F.,Maupas V.. GHI calculation sensitivity on microphysics, land- and cumulus parameterization in WRF over the Reunion Island[J]. Atmospheric Research,2018-01-01,204