| 一次连续性冰雹天气过程的诊断分析 |
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| 引用本文： | 王琎 董安祥 沈治广. 一次连续性冰雹天气过程的诊断分析[J]. 干旱气象, 2004, 22(1): 44-48 |
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| 作者姓名： | 王琎 董安祥 沈治广 |
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| 作者单位： | [1]甘肃省庆阳市气象局,甘肃西峰745000 [2]中国气象局兰州干旱气象研究所,甘肃兰州730020 |
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| 基金项目： | 科技部2002年社会公益研究项目"西北地区人工防雹消雹技术"的资助 |
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| 摘 要： | 对2000年秋季发生在甘肃庆阳的一次连续性冰雹天气过程进行了诊断分析。结果表明：这次冰雹天气过程是由于低层大气能量不断积累、低空切变线触发不稳定能量释放而产生的。冰雹出现在中低层对流不稳定和低层暖平流、高层冷平流以及低层辐合、高层辐散的上升运动区。冰雹落区与高低空温度平流和总温度平流的分布有着较好的对应关系。
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| 关 键 词： | 冰雹天气 天气形势 天气过程分析 动力条件 热力条件 |
| 文章编号： | 1006-7639(2004)-01-0044-05 |
| 修稿时间： | 2004-02-06 |
The Diagnostic Analysis of a Continuous Hail Process |
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| WANG Jin,DONG An-xiang,SHEN Zhi-guang. The Diagnostic Analysis of a Continuous Hail Process[J]. Journal of Arid Meteorology, 2004, 22(1): 44-48 |
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| Authors: | WANG Jin DONG An-xiang SHEN Zhi-guang |
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| Affiliation: | WANG Jin~1,DONG An-xiang~2,SHEN Zhi-guang~1 |
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| Abstract: | In this paper, a continuous hail process, which occurred at Qingyang in Gansu province in fall in 2000, was diagnosed. The results showed that the process was happened by the reasons of atmosphere energy accumulating continuously and unstable energy releasing touched off by shear line in lower level. Hail occurred in the ascending motion area which had convective instability at middle-lower level, warm advection at lower level, cold advection at higher level, convergence at lower level and divergence at higher level. The hail area was correlated well to the distribution of temperature advection. |
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| Keywords: | hail influencing system thermal condition dynamic condition |
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