Conditions Favorable for the Development of Heavy Precipitation During TAMEX

山洪灾害是一种常见的气象灾害， 环绕地球仪。 对这一现象的理解是 这是一个具有挑战性的问题，因为需要了解两者 运动尺度上复杂的动力学和微物理过程 比常规天气测量的要小 网络. 这种运动尺度被称为风暴尺度或中尺度 气象学家。 台湾国科会理事会成立多元 减灾项目，其气象部分侧重于 提高山洪暴发预测的能力。 一个大型实地项目， 名为台湾地区中尺度实验（TAMEX），在 1987年的春天。 该项目是一个共同的努力， 台湾机构与国家海洋和 大气管理局和国家科学基金会 （NSF）。 科学目标是研究中尺度系统 形成于一个准静止的和一致的特征上， 梅雨锋和引起的暴雨被称为“梅雨”。 根据以前的一项裁决，首席研究员使用了 在TAMEX诊断期间收集的特殊观察结果 这些研究确定了形成 强降雨 这些研究使首席研究员 集中在三个主题上--低层次的动力学 急流;沿沿着西北向风海岸形成的障碍急流 在盛行的西南风下， 循环。 除了使用 观察数据，主要研究者将使用 数值模型，以帮助确定重要的动态因素， 暴雨生产。

Flash floods are major meteorological disasters which occur around the globe. Understanding of this phenomenon is a challenging problem because it is necessary to understand both complex dynamic and microphysical processes at scales of motion that are smaller than typically measured by conventional weather networks. This scale of motion is termed storm-scale or mesoscale by meteorologists. The National Science Council of Taiwan established a Multiple Hazards Mitigation Project whose meteorological component focused on improving flash flood predictions. A major field project, entitled the Taiwan Area Mesoscale Experiement (TAMEX), was held in the Spring of 1987. The project was a joint effort of various Taiwanese agencies with participation from the National Oceanic and Atmospheric Administration and the National Science Foundation (NSF). The scientific goals were to study the mesoscale systems that form on a quasi-stationary and consistent feature known as the Mei-Yu front and cause the heavy rains known as the "plum rains". Under a previous award, the Principal Investigator used the special observations collected during the TAMEX in diagnostic studies that identified important factors for the formation of heavy rainfall. These studies have lead the Principal Investigator to concentrate on three topics -- the dynamics of the low level jet; the barrier jet which forms along the northwest windward coast of Taiwan under the prevailing southwesterlies; and the upper-level circulations. In addition to further analysis using the observational data, the Principal Investigator will utilize a numerical model to help identify the important dynamic factors for heavy rain production.