摘要
对1990～2003年4～10月吉林省9个市(州)51个气象站冰雹天气的降雹日数、年分布、年变化、日变化和降雹的主要路径等时空分布特征进行统计分析。把近14年与过去30年吉林省冰雹天气气候特征相比较,除冰雹年变化和日变化无差异外,降雹日数年分布和主要冰雹路径有所不同。分析表明,近14年降雹线共9条,大部分大致呈NW—SE走向,其中有2条SW—NE向降雹线穿过全省中部地区。
The main hail-fallout zones and their annual variation in rent years in Jilin Province are different from the past. An analysis was made of the statistical characteristics of the annual distribution and variation, daily change and main routes of hails, as well as the number of hailing days, in 51 meteorological stations in Jilin Province from April to October, 1990 to 1999. Comparing the recent 14 years with the past 30 years, there is no difference in daily and annual variation, but there are differences in the number of hailing days and the main hailing routes. The analysis indicates that there are nine hail fallout zones, most of which are in the NW-SE direction, and two in the SW-NE direction cross the central part of Jilin Province.
出处
《气象科技》
2005年第2期133-135,141,共4页
Meteorological Science and Technology
基金
吉林省科技厅"吉林省冰雹天气预测预警系统研究"项目资助
