The Spatial and Temporal Distribution Features and Types Analysis of Hail in Hulunbeier City
According to the hail data of 16 stations in Hulunbeier from 1970 to 2009, the spatial and temporal distribution features were analyzed , and the ordinary weather types of hail were summarized. The results showed that in this city, the spatial distribution of hail indicated that the days of the hail are the most in forest, are not obvious difference between pastoral and farming; the hail intently occurred during 4 -10 month, and reached peak in June; the happened period focused from 12:00 to 16:00; the duration of hail are regular 3 -5min; from 1970s to now, the interannual change of hail days showed less-more-less-less, and reducing tendency in the wave. The results showed the local convection was first to hail climate, the systematic convection was secondary. The influence of weather systems divided mainly into three categories: the cold eddy, the northwest flow and low pressure trough in high altitude, and the cold eddy was main influence systems of a hail of weather.
HailClimatic characteristicsWeather types of hailHulunbeier
国家科技期刊平台
NSTL
万方数据
维普
