文化大學機構典藏 CCUR:Item 987654321/24326
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/24326


    题名: The impact of channel effect on Asian dust transport dynamics: a case in southeastern Asia
    作者: Lin, CY (Lin, C.-Y.)
    Sheng, YF (Sheng, Y.-F.)
    Chen, WN (Chen, W.-N.)
    Wang, Z (Wang, Z.)
    Kuo, CH (Kuo, C.-H.)
    Chen, WC (Chen, W.-C.)
    Yang, T (Yang, T.)
    贡献者: Dept Geol
    关键词: LONG-RANGE TRANSPORT
    AREA MESOSCALE EXPERIMENT
    POLLUTION EPISODES
    AIR-POLLUTANTS
    BOUNDARY-LAYER
    COLD-FRONT
    HONG-KONG
    TAIWAN
    AEROSOL
    MODEL
    日期: 2012
    上传时间: 2013-02-26 10:45:03 (UTC+8)
    摘要: super heavy dust event was identified with unprecedented PM10 in terms of speed and concentration in the southeastern Asia. The average concentration was observed exceeding the value of 1000 mu gm(-3) for the duration lasting more than 10 h, with the highest value reached 1724 mu gm(-3) in northern Taiwan on 21 March 2010. We found that this case exhibited an uneven and intriguing spatial distribution of PM10 concentration and transport speed between eastern and western Taiwan. Higher values were observed in the western and northern areas. The peak concentrations can vary up to 5-fold between western and eastern Taiwan, and ten-fold between the northern tip and southern tip of Taiwan, only about 400 km apart. A high resolution, 10 km, numerical study by Weather Research Forecast (WRF) and WRF-chem models revealed that this intriguing spatial distribution of the Asian dust transport was resulting from a strong coupling effect of the geographic channel effect and blocking of the easterly from the Pacific Ocean. We are confident that this coupling effect can be revealed only by applying a high resolution numerical study in other similar regions.
    關聯: ATMOSPHERIC CHEMISTRY AND PHYSICS 卷: 12 期: 1 頁數: 271-285
    显示于类别:[地理學系] 期刊論文

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