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Foreshowing of the Western Pacific tropical cyclone track to PM10 air pollution episode in the Beijing area

【摘要】:By utilizing the air quality monitoring data and the NCEP reanalysis data, the relationship between thePM10 air pollution episode and synoptic situation is analyzed in the Beijing area. It is interesting to findthat PM10 air pollution episode in and around the Beijing area is correlated with the Western Pacifictropical cyclone track to some extent, namely when a tropical cyclone lands southward to the Chang-jiang River, PM10 air pollution episode is not easy to take place generally in the Beijing area; but when atropical cyclone moves northward and finally lands at the Korea Peninsula or the Japanese mainland,and under this condition the Beijing area is generally controlled by weak high or weak low for severaldays, PM10 air pollution episode often takes place in one day or several days. Above findings indicatethat predicting the Western Pacific tropical cyclone track can foretell whether or not PM10 air pollutionepisode takes place in the Beijing area, which can offer a technique for urban air quality prediction andair pollution source management in the Beijing area.

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