干旱区生态环境知识资源中心(Arid): Sensitivity study of the planetary boundary layer and microphysical schemes to the initialization of convection over the Arabian Peninsula

Arid

DOI	10.1002/qj.3711
	Sensitivity study of the planetary boundary layer and microphysical schemes to the initialization of convection over the Arabian Peninsula
	Schwitalla, Thomas; Branch, Oliver; Wulfmeyer, Volker
通讯作者	Schwitalla, Thomas
来源期刊	QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
ISSN	0035-9009
EISSN	1477-870X
出版年	2020
卷号	146 期号:727 页码:846-869
英文摘要	In this study, we present a five-member Weather Research and Forecasting (WRF) physics ensemble over the Arabian Peninsula on the convection-permitting (CP) scale and investigate the ability to simulate convection and precipitation by varying the applied cloud microphysics and planetary boundary layer (PBL) parametrizations. The study covers a typical precipitation event ocurring during summertime over the eastern part of the United Arab Emirates (UAE). Our results show that the best results are obtained by using water- and ice-friendly aerosols combined with aerosol-aware Thompson cloud microphysics and the Mellor-Yamada-Nakanishi-Niino (MYNN) PBL parametrization. The diurnal cycle of 2-m temperature over the desert is well captured by all members, although a cold bias is present during the morning and evening transition. All members are capable of simulating the correct timing of the onset of convection. Simulations with the MYNN PBL and Thompson scheme produce the highest convective available potential energy (CAPE) and convective inhibition (CIN), associated with stronger mixing inside the PBL, leading to the formation of more dense liquid water clouds. The WDM6 microphysics scheme is not a suitable option, as there are hardly any liquid water clouds; mainly ice clouds are simulated. Precipitation is best captured by applying the MYNN and Thomspon scheme. Although the ensemble size is relatively small, this allows for the provision of cloud probability maps suitable for cloud-seeding applications.
英文关键词	convection ensemble PBL UAE WRF
类型	Article
语种	英语
国家	Germany
开放获取类型	hybrid, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000504204000001
WOS关键词	HEAT LOW ; PRECIPITATION PRODUCTS ; WRF PARAMETERIZATIONS ; ATMOSPHERIC CONTROLS ; DEEP CONVECTION ; PBL SCHEMES ; MODEL ; CLIMATE ; SATELLITE ; RAINFALL
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
EI主题词	2019-12-25
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311930
作者单位	Univ Hohenheim, Inst Phys & Meteorol, Garbenstr 30, D-70599 Stuttgart, Germany
推荐引用方式 GB/T 7714	Schwitalla, Thomas,Branch, Oliver,Wulfmeyer, Volker. Sensitivity study of the planetary boundary layer and microphysical schemes to the initialization of convection over the Arabian Peninsula[J],2020,146(727):846-869.
APA	Schwitalla, Thomas,Branch, Oliver,&Wulfmeyer, Volker.(2020).Sensitivity study of the planetary boundary layer and microphysical schemes to the initialization of convection over the Arabian Peninsula.QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY,146(727),846-869.
MLA	Schwitalla, Thomas,et al."Sensitivity study of the planetary boundary layer and microphysical schemes to the initialization of convection over the Arabian Peninsula".QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY 146.727(2020):846-869.