文化大學機構典藏 CCUR:Item 987654321/2671
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    题名: Lidar measurements of Asian dust storms and dust cloud interactions
    作者: Nee, Jan B.;Chiang, Chih-Wei;Hu, Huan-ling;Hu, Shun-xing;Yu, Jia-Yuh
    贡献者: 大氣系
    日期: 2007
    上传时间: 2009-11-13 11:59:24 (UTC+8)
    摘要: [1] Long-range transport of Asian dust storms has been investigated by using lidar at Chungli ( 24.6 degrees N, 121.1 degrees E) in 2002 - 2004. One of the dust storms that occurred in the period of 27 - 31 March 2002 was also observed by lidar at Hefei (31.9 degrees N, 117.16 degrees E). The lidar height distributions of dust extinction were compared with back trajectory calculation and atmospheric data including First Global GARP Experiment ( FGGE)-type ground observations and National Center for Environment Prediction/ Atmospheric Research (NCEP/ NCAR) reanalysis. Dust layers had an average total (aerosol and molecular) depolarization ratio (DR) about 0.2; however, formation of droplets with near- zero depolarization ratio (0.02) was also measured. The cloud condensation nuclei (CCN) activities of dust particles were considered based on chemical properties observed from the ground. We observed that dust transport to the south may interact strongly with the moisture from the active weather system in the region producing significant climate effects.
    關聯: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Volume: 112 Issue: D15 Article Number: D15202
    显示于类别:[大氣系所] 期刊論文

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