| 新疆冰雹天气的气候特征分析 |
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| 引用本文： | 陈洪武,马禹,王旭,杨新林.新疆冰雹天气的气候特征分析[J].气象,2003,29(11):25-28. |
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| 作者姓名： | 陈洪武 马禹 王旭 杨新林 |
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| 作者单位： | 1. 新疆环境气象中心,乌鲁木齐,830002
2. 新疆塔城地区气象局 |
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| 基金项目： | 新疆维吾尔自治区气象局青年气象科研基金(塔额盆地冰雹天气诊断分析预报)资助 |
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| 摘 要： | 根据1961～1999年新疆90个气象观测站的地面观测资料，统计分析了新疆冰雹的时空分布特征，并以分钟为单位给出冰雹的日变化和持续时间。新疆冰雹主要出现在西部和中部山区，集中出现在4～10月。降雹一般出现在下午，傍晚是高峰期，有60％的冰雹持续时间在6分钟以内。进一步普查39年冰雹天气资料，得到76次系统性冰雹天气过程和1279次局地冰雹天气过程，局地冰雹天气过程的发生远远多于系统性冰雹天气过程。冰雹天气过程与地形密切相关，主要发生在山区。冰雹天气过程以1天为主，多发生于夏季，系统性冰雹天气过程均由中尺度高压造成。
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| 关 键 词： | 冰雹天气 气候特征分析 时空分布 系统性冰雹 局地冰雹 |
Climatic Characteristics of Hail Weather in Xinjiang |
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| Chen Hongwu,Wang Xu,Ma Yu,Yang Xinlin.Climatic Characteristics of Hail Weather in Xinjiang[J].Meteorological Monthly,2003,29(11):25-28. |
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| Authors: | Chen Hongwu Wang Xu Ma Yu Yang Xinlin |
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| Institution: | Chen Hongwu 1 Wang Xu 1 Ma Yu 1 Yang Xinlin 2 |
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| Abstract: | The spatial temporal distribution of hail is analyzed based on the hail data from 1961 to 1999 at 90 weather stations in Xinjiang. The hail occurrence is more frequent in mountainous areas in the western and middle part of Xinjiang and concentrates in the period from April to October, and in most of the days in June. More hail occurs in afternoon and most in evening. The persistence time of most hail is within 6 minutes. The local hail (1279) was more than systematic hail (76) during 1961 to 1999. Hail weather processes were closely related to topography, mainly occurred in mountainous area. Hail weather mostly appeared only 1 day, mainly in summer. Systematic hail weather was caused by mesoscale high pressure. |
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| Keywords: | Hail distribution of hail systematic hail local hail mesoscale high pressure |
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