桂西北地区降雹的统计特征

对1971～1998年28年1～6月百色、河池两市出现冰雹天气的资料进行统计分析,得出两市的时空分布特征:冰雹主要出现在桂西北地区的北部和西部,百色市雹日总数有随时间增加的趋势,而河池市雹日则随时间减少;降雹的日变化特征比较明显,冰雹主要出现在当日的14时至次日的08时,分别占总数的96.46%(百色市)和93.33%(河池市)。

Statistical Characteristics of Hailing in North-western Guangxi

Analyzes the statistical information on hailing weather in Baise and Hechi in the 28 years from Jan. ~ June 1971 to 1998 and finds out the distribution characteristics both in time and space of hail in these two areas. It is reported that hail mainly occurs in the northern and western part of the north-western Guangxi, and there is an increasing tendency with time of total hailing days in Baise, while an decreasing tendency in Hechi. There is a significant dialing change in hailing, with the cases mainly occurring at about 14:00 of the day till 08:00 of the next day, accounting for 96.4% (in Baise) and 93.33% (in Hechi) respectively.