干旱区生态环境知识资源中心(Arid): 敦煌戈壁地区近地层风的变化特征

Arid

	敦煌戈壁地区近地层风的变化特征
其他题名	Change Characteristic of Surface Wind in Dunhuang Gobi
	王超; 韦志刚; 李振朝
来源期刊	高原气象
ISSN	1000-0534
出版年	2011
卷号	30 期号:2 页码:299-308
中文摘要	为了解敦煌戈壁地区近地层风向、风速的变化特征,利用2002-2008年"敦煌试验"在戈壁的微气象观测资料,分析了西北极端干旱的戈壁地区风向、风速的概率分布特点和日变化、年变化、年际变化的特征。结果表明:(1)该地区多为东、西风,威布尔分布能很好地拟合风速频率分布。(2)风向有明显的日变化,白天多为东风,晚上多为南风;风速有较明显的日变化,白天风速较大,夜晚风速较小。(3)风向有明显的年变化,夏季多为东北风,冬季多为西南风;风速的年变化明显,4月最大,1月最小。(4)风向没有明显的年际变化,每年各个方向出现的频率大致相同;风速有较弱逐年递减的年际变化趋势。
英文摘要	In order to understand the variation characteristics of wind in Dunhuang gobi,using the micrometeorology data from the Dunhuang Experiment carried out during the period from 2002 to 2008,the characteristics of the probability distribution of wind direction and speed in the northwest arid region have been analyzed.The diurnal,annual and interannual change features of wind direction and speed have also been analyzed.The results indicate that:(1) In this region,the prevailing wind direction is east and west,the wind speed can be fitted well by Weibull distraction mode.(2) The wind direction and speed have obvious diural changes,the prevailing wind direction is east in daytime and south at night time,and the wind speed is higher in daytime than at night time.(3) Their annual variations are also apparent.The prevailing wind direction is north-east in summer and south in winter.Annual variation of wind speed is significant,in April the largest and the smallest in January.(4) The wind direction has no obvious interannual change,and they are almost the same in each year.Wind speed has a weak diminishing interannual trend.
中文关键词	敦煌戈壁 ; 风向 ; 风速
英文关键词	Dunhuang gobi Wind direction Wind speed
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:4193202
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/2XILL650/226648
作者单位	中国科学院寒区旱区环境与工程研究所, 中国科学院寒旱区陆面过程与气候变化重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	王超,韦志刚,李振朝. 敦煌戈壁地区近地层风的变化特征[J]. 中国科学院西北生态环境资源研究院,2011,30(2):299-308.
APA	王超,韦志刚,&李振朝.(2011).敦煌戈壁地区近地层风的变化特征.高原气象,30(2),299-308.
MLA	王超,et al."敦煌戈壁地区近地层风的变化特征".高原气象 30.2(2011):299-308.