干旱区生态环境知识资源中心(Arid): 东亚沙尘源地、沙尘输送路径的遥感研究

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	东亚沙尘源地、沙尘输送路径的遥感研究
其他题名	Remote Sensing Study of Tracks and Source Areas of Eastern Asian Dust
	延昊 1; 王长耀 1; 牛铮 1; 张晔萍 2
来源期刊	地理科学进展
ISSN	1007-6301
出版年	2002
卷号	21 期号:1 页码:90-94
中文摘要	东亚沙尘灾害严重影响东亚各国的生态环境，在源地大量侵蚀表层土壤，在输送过程中严重污染大气环境质量。此外，作为气溶胶，对区域辐射平衡和天气系统产生重大影响。本文利用Sea WiFS遥感数据分析了东亚沙灾害的源地、沙尘输送路径，结果显示：东亚沙尘的三个主要源地是蒙古的戈壁、内蒙古中西部的沙漠弋壁和塔克拉玛干沙漠。沙尘输送路径有北路、中路和南路三条，北路主要影响中国的东北地区，中路主要影响中国的华北地区，南路主要影响中国的华中、华东地区。通过遥感确定沙尘源地和沙尘输送路径对于东亚沙尘灾害的治理有指导意义，也是对沙尘大气模式的一种检验。
英文摘要	Eastern Asian dust has great influences on ecosystem and atmosphere environment. The remote sensing data of ’true color’ SeaWiFS image (7 months’ daily data from Dec, 2000 to Jun, 2001) is used to analyze the source areas and tracks as well as temporal - spatial distribution of eastern Asian dust. The result indicates that three main dust sources are Gobi of Mongolia, desert and Gobi of inner Mongolia, and Taklamakan desert. There are three tracks of eastern Asian dust according to difference of affected areas, that is, north track, middle track and south track. And the north track affects the northeastern China, the middle track affects northern China, and the south track affects eastern China. Based on the statistics of 7 months’ daily SeaWiFS data, this paper find that Asian dust occurs most frequently in spring, especially in April. As dust sources, Taklamakan desert has 80 dust days, desert and Gobi of inner Mongolia has 19 dust days, and Gobi of Mongolia has 13 dust days. But not all dust occurred in dust sources moves away to the outside. Moreover, as dust affected areas, northeastern China has 19 dust days, northern China has 20 dust days, and eastern China has 10 dust days.
中文关键词	东亚沙尘灾害 ; 遥感技术 ; SeaWiFS数据
英文关键词	Asian dust disaster remote sensing SeaWiFS data
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:968311
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203068
作者单位	1.中国科学院遥感应用研究所, 遥感信息科学开放实验室, 北京 100101, 中国; 2.中国气象局国家卫星气象中心, 北京 100081, 中国
推荐引用方式 GB/T 7714	延昊,王长耀,牛铮,等. 东亚沙尘源地、沙尘输送路径的遥感研究[J],2002,21(1):90-94.
APA	延昊,王长耀,牛铮,&张晔萍.(2002).东亚沙尘源地、沙尘输送路径的遥感研究.地理科学进展,21(1),90-94.
MLA	延昊,et al."东亚沙尘源地、沙尘输送路径的遥感研究".地理科学进展 21.1(2002):90-94.