Impact of Climate Warming on Fog in China
气候变化对中国大雾的影响

Using foggy days and mean temperature and relative humidity of 602 stations from January to December in the period 1961-2003 in China, the relationship between variations of foggy days and temperature and its possible reason for 43 years were analyzed by regression, correlation and contrastive analysis methods. The results show that the higher (lower) the mean temperature and relative humidity, the lower (higher) corresponding to the less (more) foggy days, the relationship is best in the western, northern, eastern Sichuan, the Yunnan-Guizhou Plateau, and southeast highland in China. This induces a decrease in relative humidity when the climate becomes warmer, and eventually brings about a decrease in foggy days in China.