干旱区生态环境知识资源中心(Arid): 沙漠地区风沙活动特征以中国科学院风沙观测场为例

Arid

	沙漠地区风沙活动特征以中国科学院风沙观测场为例
其他题名	Features of Sand Drift Movement in DesertA Case Study at Sand Drift Observation Station of Chinese Academy of Sciences
	张正偲; 董治宝; 赵爱国; 韩兰英; 钱广强; 罗万银
ISSN	1001-4675
出版年	2007
卷号	24 期号:4 页码:550-555
中文摘要	运用中国科学院风沙科学观测场的实测资料,对腾格里沙漠风沙环境特征进行初步分析,内容包括起沙风、风沙活动强度、风沙流结构和沙漠边界层的风速廓线.该地区的起沙风以6～8 m/s为主,占总起沙风的71.63%,其次为8～10 m/s,占19.24%,两者之和占90.87%;大风日数为4天;风向以W-N组风向为主;占全年的53.14%.年输沙势为36.56VU,风能属于低风能环境,单一主风向和单风态风环境.风沙流主要集中在地表的0.1 m,占总输沙量的95.46%.观测场近地层厚度大于50 m.
英文摘要	In this paper, a case study about the sand drift environment in the Tengger Desert is carried out based on the measured data of sand drift movement at Sand Drift Observation Station of Chinese Academy of Sciences, and the study contents include the sand-raising wind speed and direction, intensity and flux profile of sand drift, and wind profile of the boundary layer over the desert. The results show that the sand-raising winds in this region are dominated by wind speed varying in a range of 6～8 m/s, and then by wind speed varying in a range of 8～10 m/s, they occupy 71.63% and 19.24 % of the total sand-raising winds respectively. The maximum monthly average wind speed occurs in March, and it is 9.16 m/s. The days of occurring strong wind are 4 days. Wind directions are dominated by W-N, and their proportion is 53.14% of the total. The annual sand drift potential is 36.56 VU, and the wind energy is low. The flux profile can be expressed by using the exponential function, the drifting sand is mainly blown within a height of 10 cm above, ground surface, and the proportion of blown sand in this layer occupies 95.46 % of the total collected sand. The height of sand drift over the station is higher than 50 m above ground surface.
中文关键词	风沙活动 ; 起沙风 ; 输沙势 ; 风沙流结构 ; 风速廓线 ; 腾格里沙漠
英文关键词	sand drift movement sand-raising wind speed sand transport potential the flux profile of sand drift wind profile
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:2852402
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220991
作者单位	中国科学院沙漠与沙漠化重点实验室, 中国科学院沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	张正偲,董治宝,赵爱国,等. 沙漠地区风沙活动特征以中国科学院风沙观测场为例[J],2007,24(4):550-555.
APA	张正偲,董治宝,赵爱国,韩兰英,钱广强,&罗万银.(2007).沙漠地区风沙活动特征以中国科学院风沙观测场为例.,24(4),550-555.
MLA	张正偲,et al."沙漠地区风沙活动特征以中国科学院风沙观测场为例".24.4(2007):550-555.