RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2015, Vol. 24 >> Issue (12): 2125-2134.doi: 10.11870/cjlyzyyhj201512017

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ANALYSIS OF FOG CLIMATIC CHARACTERISTICS IN ANHUI PROVINCE DURING 1970-2009

DENG Xue-liang, SHI Chun-e, WU Bi-wen, ZHANG Hao, YANG Guan-yin, YU Cai-xia   

  1. Anhui Institute of Meteorology, Key Laboratory of Atmospheric Science and Satellite Remote Sensing, Hefei 230031, China
  • Received:2015-03-17 Revised:2015-07-16 Online:2015-12-20

Abstract: In this study, climatic features of fogs in Anhui Province were systematically analyzed, based on the data provided by surface observation stations from 1970 to 2009. The results showed that fogs in Anhui Province expressed a notable decadal variability. Foggy days peaked in 1980's, after which foggy days decreased continuously from 1980's to 2000's. Meanwhile, decadal variability of fog generation time was not evident, but delayed fog dissipation time was obvious. As a result, fog duration increased approximately one hour during the forty years. Besides, the seasonal variation was obvious and the spatial distribution was not uniform. The season of high-frequency fog was winter, with most foggy days, longest fog duration and lowest fog visibility. The effect of fog in winter was the largest in the whole year. In the opposite, the season of low-frequency fog was summer, with least foggy days shortest fog duration, lowest fog visibility. The effect of fog in summer was the weakest in the whole year. In terms of spatial variation, fogs mainly occurred in the north region and the south mountainous region.

Key words: Anhui province, fog, climatic feature

CLC Number: 

  • X21
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