The Climatic Characteristics of Snow Glaze and Rime in Huangshan Mountain

The climatic characteristics of snow, glaze and rime in Huangshan mountain were analysed with the meteorological data obtained from 1956 to 1996. The results show that: a) the days of snow, glaze and rime in a year are characterized by a time varying feature of multi wave fluctuation, and their interannual change is periodical and there is a 12 years quasi period of low frequency fluctuation;b) It is possible that snow, snow cover, glaze and rime generate in the period from October to next May, most the days of snow, glaze and rime are in Winter, the days in March are less than in the months of winter, and the days of glaze in March are more than that in December; c) the first day of snow is on 17 September and the end day is on 26 May, the first days of glaze and rime are in October and the end days are in the first or second dekad of May; d) the daily maximum snow is 30mm in the second dekad of March, the maximum weight of snow cover on wire is 12.148kg; e) the air temperature during glaze is -0.45~0.8℃, more than that during rime and glaze/rime. The generating frequence of snow, glaze and rime in wind direction distribution is not obviousely different, and the frequence of glaze and rime in NW wind direction is the most.

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