干旱区生态环境知识资源中心(Arid): 塔里木盆地南缘策勒典型下垫面水的湍流特征

Arid

	塔里木盆地南缘策勒典型下垫面水的湍流特征
其他题名	Turbulent characteristics of horizontal wind over typical underlying surfaces in Cele at the southern rim of Tarim Basin
	苏永亮; 穆桂金; 潘燕芳; 李开封; 桂东伟
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2011
卷号	34 期号:3 页码:458-463
中文摘要	基于2010年3月28日天气过程在策勒地区实测风速数据，分析戈壁、绿洲农田、灌木林三种典型下垫面3 m高度水平风速的最大脉动风速、湍流强度、阵风因子等湍流特征，结果显示:(1近地层湍流在时间序列上具有多尺度复杂性，湍流强度、阵风因子均随分析时距增大呈对数增长；(2)以10 min为分析时距获得的各项参数都显示绿洲植被显著降低了同等高度风速的水平分量，同时也引起了湍流强度和阵风因子的显著增强，并导致了最大脉动风速的大幅度提升；(3)本次实测风速段内最大脉动风速与平均风速成正相关关系，且戈壁、绿洲农田、灌木阻沙林随风速的增长速率依次增大。
英文摘要	At the southern rim of the Tarim Basin,sand - wind hazard is severe and affect the local people seriously,especially the agricultural production.To understand the turbulent characteristics of horizontal wind near ground surface layer,an experiment was conducted in Cele at the southern rim of the Tarim Basin.In the experiment,wind speed at height of 3 m was observed over three typical underlying surfaces (Gobi,farmland and shelterbelt)and then a weather process was obtained during March 28th 2010.In the paper,the turbulent characteristics of the observed horizontal wind,including maximum fluctuation wind speed,turbulence intensity and gust factors,were analyzed for the three typical underlying surfaces.The results show that:turbulence in the surface layer has obvious complexity at multiple time scales,and the turbulence intensity and gust factors have logarithmic relationships with the analyzed time scales; the differences of the analyzed parameters per 10 min.among the three underlying surfaces indicates that the oasis vegetation reduces the horizontal wind at the same height significantly while increased the turbulence intensity and gust factor and ascends the maximum fluctuation wind speed greatly; the maximum fluctuation wind speed correlates with the corresponding average wind speed positively,and the increased rates of the maximum fluctuation wind speed with the average wind speed are as follows:shelterbelt’s > farmland’s > Gobi’s.The results provide reference values for studies on turbulent characteristics of horizontal wind and offer theoretical guidance for sand - wind control at the southern rim of the Tarim Basin.
中文关键词	塔里木盆地南缘 ; 水平风 ; 湍流特征 .
英文关键词	the southern rim of Tarim Basin horizontal wind turbulent characteristic
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:4219574
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226457
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830001, 中国
推荐引用方式 GB/T 7714	苏永亮,穆桂金,潘燕芳,等. 塔里木盆地南缘策勒典型下垫面水的湍流特征[J]. 中国科学院新疆生态与地理研究所,2011,34(3):458-463.
APA	苏永亮,穆桂金,潘燕芳,李开封,&桂东伟.(2011).塔里木盆地南缘策勒典型下垫面水的湍流特征.干旱区地理,34(3),458-463.
MLA	苏永亮,et al."塔里木盆地南缘策勒典型下垫面水的湍流特征".干旱区地理 34.3(2011):458-463.