中文摘要：

现在，嵌套的格子模型广泛地被用来增加数字模型的决定。在中央规模上调查最新发达的嵌套的技术 ofWRF 模型的影响的一次尝试严重暴风雨的数字模拟在这篇文章被描述。测试推断的敏感的 Theresults WRF 模型与嵌套给严重暴风雨的更多的精确、生动的预言计划。是在测试被显示出，没有使用，用嵌套的中心策划的降水的模仿的价值比那些大嵌套计划，它显示嵌套的暴风雨的模仿的降水接近真实降雨。并且有雨区域的分发和降水中心的位置的明显的改进。根据 WRF 模型的高分辨率输出数据，触发暴风雨的 themesoscale 系统的字符的深、详细说明的分析在这篇文章，和严重暴风雨也是的前面讨论了的这 Meiyu 的热、动态的字符被报导。

英文摘要：

Nowadays, the nested grid model is widely used to increase the resolution of numerical model. An attempt to investigate the influence of the newly developed nesting technique of WRF model on the mesoscale numerical simulation of severe storm is described in this article. The results of sensitivity tests infer that the WRF model give more accurate and vivid prediction of severe storm with nesting scheme. As is shown in the tests, simulating value of the precipitation centers using nesting scheme are larger than those without using nesting scheme, which indicates that the simulating precipitation of nested storm is closer to the real rainfall. And there is obvious improvement of distribution of rain area and position of precipitation centers. According to the high resolution output data of the WRF model, deep and detailed analysis of characters of the mesoscale system that triggers the rainstorm is reported in this article, and the thermal and dynamical characters of this Meiyu front severe storm are also discussed.