干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠腹地沙尘天气特征

Arid

	塔克拉玛干沙漠腹地沙尘天气特征
其他题名	Dust Weather in Hinterland of the Taklamakan Desert
	周成龙 1; 杨兴华 2; 钟昕洁 1; 杨帆 2; 仇会民 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2017
卷号	34 期号:2 页码:324-329
中文摘要	利用塔克拉玛干沙漠腹地塔中气象站20072011年的地面(10 m)风速、风向和沙尘天气等气象要素,分析沙漠腹地的沙尘天气特征。结果表明: ① 塔克拉玛干沙漠腹地沙尘频率和强风频率年、月分布具有较好的一致性,沙尘天气具有明显的季节性,春、夏季占全部沙尘频次的88. 3%,冬季仅占总数的2. 3%。② 春、夏季沙尘天气的高发时段为12: 0000: 00; 20: 00发生频次最多,分别占春、夏季沙尘频次的12. 7%和10. 8%,秋季和冬季沙尘天气高发时段为14: 0021: 00。③ 出现沙尘天气时,风向主要集中在E、ENE、N和NNE 4个方向。④ 沙漠腹地临界起沙风速u_(t5%)为4 ~ 5 m·s~(- 1),一般地表的临界起沙风速u_(t50%)为5 ~ 6 m·s~(- 1); ⑤ 从Nf_(DO)分布来看,春、夏两季要明显高于秋冬季节,其中4月最大,为0. 284。因此,沙漠腹地春、夏季易发生沙尘天气。
英文摘要	The meteorological data including the wind speed at 10 m height,wind direction and dust weather during the period from 2007 to 2011,observed by Tazhong Meteorological Station,were used to analyze the characteristics of dust weather and acquire the critical sand-driving wind speed in hinterland of the Taklamakan Desert. The results are as follows: ① The annually and monthly frequencies of dust weather and strong wind in hinterland of the Taklamakan Desert were in a good consistency,the occurrence of dust weather was obviously seasonal,the proportion of dust weather in spring and summer accounted for 88. 3% of the total,and that in winter accounted only for 2. 3%; ② The time when dust weather occurred in spring and summer was mainly from 12: 00 to 00: 00 oclock, and the frequency of dust weather occurred at 20: 00 was the highest and accounted for 12. 7% of that in spring and 10. 8% of that in summer,and the time when dust weather occurred in autumn and winter was mainly from 14: 00 to 21: 00; ③ The prevailing wind directions of dust weather were E,ENE,N and NNE; ④ The critical sand-driving wind speed u_(t5%) in the hinterland varied in an range of 4 - 5 m·s~(- 1),and the u_(t50%) was in a range of 5 - 6 m·s~(- 1); ⑤ The values of Nf_(DO) in spring and summer were significantly higher than those in autumn and winter,and the highest value (0. 284) occurred in April. Therefore,it could be considered that it was easy to occur dust weather in spring and summer in hinterland of the Taklamakan Desert.
中文关键词	沙尘天气 ; 强风频率 ; 临界起沙风速 ; 季节变化 ; 塔克拉玛干沙漠
英文关键词	dust weather frequency of strong wind critical sand-driving wind speed seasonal variation Taklimakan Desert
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:5946654
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235978
作者单位	1.巴音郭楞蒙古自治州气象局, 库尔勒, 新疆 841000, 中国; 2.中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	周成龙,杨兴华,钟昕洁,等. 塔克拉玛干沙漠腹地沙尘天气特征[J]. 中国气象局乌鲁木齐沙漠气象研究所,2017,34(2):324-329.
APA	周成龙,杨兴华,钟昕洁,杨帆,&仇会民.(2017).塔克拉玛干沙漠腹地沙尘天气特征.干旱区研究,34(2),324-329.
MLA	周成龙,et al."塔克拉玛干沙漠腹地沙尘天气特征".干旱区研究 34.2(2017):324-329.