THE BASIC CHARACTERISTICS OF HEAVY SNOWSTORM PROCESS AND SNOW DISASTER DISTRIBUTION IN EASTERN PASTORAL AREAS OF QINGHAI-XIZANG PLATEAU
THE BASIC CHARACTERISTICS OF HEAVY SNOWSTORM PROCESS AND SNOW DISASTER DISTRIBUTION IN EASTERN PASTORAL AREAS OF QINGHAI-XIZANG PLATEAU
复制标题
DOI：
--
复制
发表时间：
2000-12
期刊：
影响因子：
--
通讯作者：
Zhou Lu-sheng;Liu Hai-hong;Wang Qing-chun
中科院分区：
文献类型：
--
作者：
Zhou Lu-sheng;Liu Hai-hong;Wang Qing-chun
青藏高原东部牧区26个气象站近30年来共出现1 689次暴雪天气过程。按照我们的标准，雪灾共发生了410次。通过统计分析，初步得出了暴雪过程和雪灾的时空分布特征。结果表明：九陟是暴雪过程和雪灾的多发中心，清水河是雪灾和雪灾形成的高值中心；冬末灾害发生概率达80.3%，春季灾害发生概率仅为14.3%。因此，由于暴雪过程和降水的显著增加，对雪灾的影响越来越严重，特别是自20世纪90年代以来变得更加频繁。
The 26 weather stations in eastern pastoral areas of Qinghai Xizang Plateau have appeared 1 689 heavy snowstorm weather processes in the past 30 years. In terms of our standard, snow disaster occurred 410 times totally. By means of statistic analysis, we concluded some preliminary time space distribution characteristics of heavy snowstorm processes and snow disaster. The results show that Jiuzhi was the frequent center of heavy snowstorm processes and snow disaster, while Qingshuihe was the high value center of snow disaster and disaster forming. The probability of disaster forming reached to 80.3% in the later winter, but only 14.3% in the spring. As a result, tomake an impact on snow disaster is getting more and more serious because of the significant increment of heavy snowstorm processes and precipitation, particularly, it becomes more frequent since 1990's.