摘要
使用雹灾汇报资料 ,对本区的雹灾受灾频率、重灾频率和成灾面积比的分布做了区划分析。结果显示 :受灾频率较大的地区基本与本区的坝头地带、坝上西部及复杂山地配合 ;较小的地区是海拔最低的洋河谷地。重灾频率和成灾面积比的分布与受灾频率基本相反。分析原因 ,主要是雹块大小与海拔高度呈反相关以及生长期的差异。
By using the reported data of hail disasters, a zoning analysis on the frequency of hail disaster, frequency of heavy hail disaster and distribution of ratio of area that affected by hailstone in Zhanjiakou is made The results show that the district with higher frequency of hail disaster is basically matched with upper zone and western part of flatland and also the complex mountainous area in this region The district with lower frequency of hail disaster is in the valley with the lowest altitude The distribution of ratio of heavy disaster frequency to the area affected by hailstone is basically contrary The analysis indicates that it is mainly because of retro correlation of size of hailstone with the height above sea level and also because of differences of hail growth period
出处
《灾害学》
CSCD
2000年第1期31-35,共5页
Journal of Catastrophology
基金
河北省"九.五"重大科技攻关项目 !(95 - 96 - 1 2 )
关键词
张家品
雹灾
受灾频率
重灾频率
雹灾区划
Zhangjiakou
frequency of hail disaster
frequency of heavy disaster
ratio of the area affected by disaster
zoning of hail disaster
