关键词: 浮尘, 气象要素, 相关分析, 影响因子, 强度变化

Abstract: Based on daily observation data from 27 meteorological stations in the peripheral regions of Tarim Basin from 1961 to 2003, the authors sort out 40 meteorological factors and show the existence of consistency among the analogical meteorological factors with correlation analysis. 15 among the 40 factors, such as daily mean and 6, hour variation of sea level pressure, air temperature and wind speed, daily mean of relative humidity, daily precipitation and daily maximum depth of frozen soil, are considered having influences on floating dust weathers, while others are neglected due to their self, consistencies. The degree of correlations between these 15 factors and floating dust weathers has significant changes from one month to another. Analyses of multivariate linear regression show significant seasonal changes. At 08:00, 14:00 temperature variation and daily, mean relative humidity are the dominant factors of influencing on floating dust weathers in all seasons. At 14:00, 20:00 in spring and summer, pressure variation is the secondary factor. At 08:00, 14:00 in autumn variation of wind speed is important. Daily, mean wind speed is important in all seasons, with more prominent influences in spring and winter.

Key words: floating dust, meteorological factor, correlation analysis, influence