干旱区生态环境知识资源中心(Arid): 晴天和沙尘天气下沙漠绿洲过渡带近地表风速脉动特征

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	晴天和沙尘天气下沙漠绿洲过渡带近地表风速脉动特征
其他题名	The Wind Speed Fluctuation over the Desert-Oasis Ecotone during Sunny and Duststorm Weather Processes
	安志山; 张克存; 谭立海; 蔡迪文
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2017
卷号	37 期号:3 页码:414-420
中文摘要	以敦煌黑山嘴沙漠绿洲过渡带为例,利用可移动梯度风测量系统,获取晴天和沙尘暴天气过程中沙漠绿洲过渡带近地表风速脉动特征,研究沙尘天气对近地表风速脉动影响。结果表明: 无论晴天或沙尘暴,相同测点各高度层脉动风速具有很好的相关性,相邻高度脉动风速的相关性更加显著,脉动风速的波动范围与高度和风速呈正比。沿沙漠至绿洲方向,晴天环境下脉动强度先增大后减小,沙尘暴环境下脉动强度逐渐减小。沙尘暴和晴天环境下脉动风速的变化规律相近,但沙尘暴环境下风向相关性更加显著,风速脉动强度更大。风速与脉动强度呈正相关,沙尘对脉动强度产生一定抑制作用。
英文摘要	The wind speed fluctuation characteristics of the desert-oasis ecotone in Heishanzui area of Dunhuang was studied using a portable gradient wind measurement system during sunny and duststorm weather processes. The results show that wind speed fluctuations at different heights have good correlation in both sunny days and duststorm processes in the same observation point, and more significant correlation occurs in the adjacent height. The wind speed fluctuation range increases with increasing height. Meanwhile, the fluctuation intensity of wind speed first increases then decreases along the direction from desert to oasis during sunny days, while it continuously decreases during sandstorm processes. Wind speed fluctuation rule in sunny days is similar to that in a duststorm processes. However, the correlation of wind directions in the same measuring point is more significant during duststorm processes compared with that in sunny days, and the wind speed fluctuation intensity is larger. Besides, wind speed is positively related to the fluctuation intensity, and the duststorm has certain inhibitory effect on strength of the fluctuation intensity.
中文关键词	沙漠绿洲过渡带 ; 风速脉动 ; 相关性 ; 脉动强度
英文关键词	desert-oasis ecotone wind speed fluctuation correlation fluctuation intensity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5988930
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/2XILL650/237092
作者单位	中国科学院西北生态环境资源研究院, 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;;敦煌戈壁荒漠生态与环境研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	安志山,张克存,谭立海,等. 晴天和沙尘天气下沙漠绿洲过渡带近地表风速脉动特征[J]. 中国科学院西北生态环境资源研究院,2017,37(3):414-420.
APA	安志山,张克存,谭立海,&蔡迪文.(2017).晴天和沙尘天气下沙漠绿洲过渡带近地表风速脉动特征.中国沙漠,37(3),414-420.
MLA	安志山,et al."晴天和沙尘天气下沙漠绿洲过渡带近地表风速脉动特征".中国沙漠 37.3(2017):414-420.