干旱区生态环境知识资源中心(Arid): Characteristics and Mechanisms of the Sudden Warming Events in the Nocturnal Atmospheric Boundary Layer: A Case Study Using WRF

Arid

	Characteristics and Mechanisms of the Sudden Warming Events in the Nocturnal Atmospheric Boundary Layer: A Case Study Using WRF
	Ma Yuanyuan; Yang Yi; Hu Xiaoming; Gan Ruhui
来源期刊	Journal of Meteorological Research
ISSN	2095-6037
出版年	2015
卷号	29 期号:5 页码:747-763
英文摘要	Although sudden nocturnal warming events near the earth's surface in Australia and the United States have been examined in previous studies, similar events observed occasionally over the Loess Plateau of Northwest China have not yet been investigated. The factors that lead to these warming events in such areas with their unique topography and climate remain not clear. To understand the formation mechanisms and associated thermal and dynamical features, a nocturnal warming event recorded in Gansu Province (northwest of the Loess Plateau) in June 2007 was investigated by using observations and model simulations with the Weather Research and Forecasting (WRF) model. Observations showed that this near-surface warming event lasted for 4 h and the temperature increased by 2.5°C. During this event, a decrease in humidity occurred simultaneously with the increase of temperature. The model simulation showed that the nocturnal warming was caused mainly by the transport of warmer and drier air aloft downward to the surface through enhanced vertical mixing. Wind shear played an important role in inducing the elevated vertical mixing, and it was enhanced by the continuous development of the atmospheric baroclinicity, which converted more potential energy to kinetic energy.
英文关键词	Semi-Arid Climate and Environment Observatory of Lanzhou University (SACOL) nocturnal warming events Weather Research and Forecasting (WRF) enhanced vertical mixing wind shear
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5565681
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335575
作者单位	Ma Yuanyuan, College of Atmospheric Sciences, Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province;;Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou, Gansu 730000, China.; Yang Yi, College of Atmospheric Sciences, Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province;;Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou, Gansu 730000, China.; Gan Ruhui, College of Atmospheric Sciences, Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province;;Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou, Gansu 730000, China.; Hu Xiaoming, Nanjing University of Information Science & Technology, Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing, Jiangsu 210044, China.
推荐引用方式 GB/T 7714	Ma Yuanyuan,Yang Yi,Hu Xiaoming,et al. Characteristics and Mechanisms of the Sudden Warming Events in the Nocturnal Atmospheric Boundary Layer: A Case Study Using WRF[J],2015,29(5):747-763.
APA	Ma Yuanyuan,Yang Yi,Hu Xiaoming,&Gan Ruhui.(2015).Characteristics and Mechanisms of the Sudden Warming Events in the Nocturnal Atmospheric Boundary Layer: A Case Study Using WRF.Journal of Meteorological Research,29(5),747-763.
MLA	Ma Yuanyuan,et al."Characteristics and Mechanisms of the Sudden Warming Events in the Nocturnal Atmospheric Boundary Layer: A Case Study Using WRF".Journal of Meteorological Research 29.5(2015):747-763.