干旱区生态环境知识资源中心(Arid): 库姆塔格沙漠大尺度风场特征分析

Arid

	库姆塔格沙漠大尺度风场特征分析
其他题名	A Study of Wind System in Kumtag Desert
	曾晓青; 王式功; 尚可政; 杨德保; 曾淑玲
ISSN	1000-694X
出版年	2009
卷号	29 期号:3 页码:391-396
中文摘要	利用美国NCEP/NCAR1979-2006年27 a地面10 m高度的日平均风场再分析-2资料以及46 a的地面常规气象站观测资料和1 a的沙漠中自动气象站观测资料,对库姆塔格沙漠地区风场进行了统计与诊断分析.结果表明:沙漠地区,一年四季北风和东北风为近地面主要存在的风向,春季风速最强,夏季次之,秋冬季最弱;在夏秋冬季节,由于北风的逐渐减弱,加上受到南侧阿尔金山和青藏高原风场的影响,南下的气流在沙漠南侧分为三支,分别流入新疆、青海和甘肃.春夏季节在沙漠北侧基本都是以东北风或者西北风吹向库姆塔格沙漠,秋冬季节,沙漠地区出现西南风.根据沙漠周围6个气象站风场风速显示,库姆塔格沙漠地区风速存在明显的周期变化,在过去的10多年中库姆塔格沙漠周围风场风速处于一个低谷期,但最近几年风速有不断加强的趋势.
英文摘要	Based on the dataset of NCEP (National center of environment prediction, USA) and NCAR (National center of atmosphere research) reanalysis-2 daily average wind data 10 m from surface in 27 years from 1979 to 2006 and the observations of ground weather stations, some statistic characteristics of wind system in Kumtag desert were analyzed. The conclusions are as follows: In spring, summer, autumn and winter, north and northeast wind directions are dominant in the desert; Wind is stronger in spring and summer than in autumn and winter; The southward airflow evolved into three branches due to decreasing north wind strength combined with effect of uplifting landforms of Qinghai-Xizang Plateau; There is northeast wind in mid-west of the desert and southwest wind in the mid-east, and the southwest wind is weaker in spring and summer but stronger in autumn and winter. Analysis on the wind system according to observations of 6 stations around the desert suggests that the wind speed in Kumtag desert existed obvious periodic change, being in trough period in the past 10 years and appearing increasing trend in recent years.
中文关键词	库姆塔格沙漠 ; 风场分析 ; 羽毛状沙丘
英文关键词	Kumtag desert wind analysis featherlike dune ridges
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:3635455
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224545
作者单位	兰州大学大气科学学院, 甘肃省干旱气候变化与减灾重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	曾晓青,王式功,尚可政,等. 库姆塔格沙漠大尺度风场特征分析[J]. 兰州大学,2009,29(3):391-396.
APA	曾晓青,王式功,尚可政,杨德保,&曾淑玲.(2009).库姆塔格沙漠大尺度风场特征分析.,29(3),391-396.
MLA	曾晓青,et al."库姆塔格沙漠大尺度风场特征分析".29.3(2009):391-396.