干旱区生态环境知识资源中心(Arid): 敦煌月牙泉景区典型风沙天气的局地流场特征

Arid

	敦煌月牙泉景区典型风沙天气的局地流场特征
其他题名	Local Flow Field Characteristics in the Crescent Spring Scenic of Dunhuang under Typical Windy and Sandy Weather
	庞营军 1; 屈建军2 ; 牛清河 1; 张克存 1; 安志山 1; 谢胜波 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2015
卷号	32 期号:4 页码:710-715
中文摘要	基于月牙泉周边5个气象观测点资料,对东北、南、西西南和北风过境时月牙泉周边风速和风向进行了研究。结果表明:年起沙风频率为16.67%,其中,西西南和东北方向的起沙风频次最大,分别占总起沙风频次的23.08%和17.52%; 月牙泉所在的大泉湾地形走向为近东西方向,对过境气流的分流作用明显,有利于月牙泉南北两侧沙丘坡面沙物质的输移,维持坡面稳定; 东北风对月牙泉南北两侧坡面沙物质的输移作用最大,故应该限制月牙泉东北方向绿洲的规模,减少大小泉湾处的高大建筑物及防风林,以保持月牙泉东北方向来流的强度不会减小;南风会导致月牙泉南侧沙垄北移,是最主要的有害风。
英文摘要	The research status show that it is very necessary to study local flow field of Crescent Spring Scenic systematically combined with the typical sandstorm weather process,so that we could not only find the evidence of Crescent Spring Scenic surrounding flow field change,but also provide theoretical foundation for protecting and rescuing the natural wonders. Based on the meteorological data of five weather stations around the Crescent Spring,the processes of NE,S,WSW and N wind were analyzed,and the results were as followed:the frequency of annual sand driving wind was 16.67%,and the frequencies of sand driving wind in WSW and NE directions were highest,accounting for 23.08% and 17.52% of total sand driving wind, respectively. The big spring bay where the Crescent Spring located presented east-west direction,which could divert the airflow,promote the slip face sand transport at the north and south of the Crescent Spring,and maintain the stability of the dune surfaces. The northeast wind played the leading role in transporting slip face sand at the north and south of the Crescent Spring. Therefore,to maintain the strength of northeast wind,we should reduce the tall architectures and windbreaks,and limit the scale of the oasis at the northeast of the Crescent Spring. The southerly wind could cause the northward movement of longitudinal dune at the south of the Crescent Spring,and was the most harmful wind.
中文关键词	风沙天气 ; 风场 ; 月牙泉 ; 敦煌
英文关键词	windy and sandy weather wind field Crescent Spring Dunhuang
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5482781
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232728
作者单位	1.中国科学院寒区旱区环境与工程研究所, 中国科学院沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国; 2.中国科学院寒区旱区环境与工程研究所, 中国科学院沙漠与沙漠化重点实验室;;甘肃省风沙灾害防治工程技术研究中心, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	庞营军,屈建军,牛清河,等. 敦煌月牙泉景区典型风沙天气的局地流场特征[J]. 中国科学院西北生态环境资源研究院,2015,32(4):710-715.
APA	庞营军,屈建军,牛清河,张克存,安志山,&谢胜波.(2015).敦煌月牙泉景区典型风沙天气的局地流场特征.干旱区研究,32(4),710-715.
MLA	庞营军,et al."敦煌月牙泉景区典型风沙天气的局地流场特征".干旱区研究 32.4(2015):710-715.