宝鸡渭北冰雹地理分布及减灾对策  

Geographical Distribution of Hailstorm in Baoji Weibei Region and the Measures for Disaster Reduction

作　　者：刘引鸽[1] 韩景卫[1] 

机构地区：[1]宝鸡文理学院灾害监测与机理模拟陕西省重点实验室,陕西宝鸡721007

出　　处：《灾害学》2006年第2期46-49,共4页Journal of Catastrophology

基　　金：国家自然科学基金项目(40471053);陕西省重点实验室项目(04JS39);宝鸡文理学院重点项目(ZK2306)资助

摘　　要：采用宝鸡渭北地区40年（1961～2000年）的冰雹资料,结合实际调查,分析了渭北冰雹的地理分布及其移动路径.结果表明：宝鸡渭北地区降雹的年、月、日变化比较显著,降雹强度与地理环境密切,北部山区降雹多于渭河川原,主要分布于泾河与千河之间的分水岭南侧及喇叭口形的谷地中,冰雹移动路径与河谷走向基本一致.根据当地情况,提出了加强预测预报、人工消雹,以及建造林带和改良土壤,从而改变下垫面条件的减轻冰雹灾害的对策.Based on 10 stations＇ the hailstorm climatic data of 40 years from 1961 to 2000 in Baoji Weibei region, the transfer route and characteristics of geographical distribution of hailstorm in Weihe North was analyzed. The results show that the annual, monthly, daily changes of the hailstorm are evident. Hail frequency is closely related with geographic environment. Hail in north hilly area is more frequent than that in Weihe plain. It is mainly distributed in the south side of the watershed between Jinghe and Qianhe rivers and bellmouth-shaped valleys. The transfer route of hail is consistent with the trend of river valley. Finally, a systematic countermeasure is put forward for hailstorm disaster reduction by means of strengthening forecast, artificially eliminating hailstorm, afforesting and improving soil.

关 键 词：冰雹 地理分布 移动路径 减灾对策 宝鸡渭北 

分 类 号：P426.64[天文地球—大气科学及气象学]