Investigation of the Evolution of Mesoscale Systems and Processes Associated with East Coast Cyclones during GALE

冬季的迅速发展和加剧 沿海地区的气旋是一种主要的天气 预测问题。 沿着美国东海岸 美国，气旋风暴和锋面的发展 系统通常发生在沿着沿海地区 你好 这些天气系统可能导致恶劣天气 在人口稠密的东北走廊， 冻雨、大雪、暴雪和大范围 海岸侵蚀 冷大陆的复杂相互作用 空气，温暖的洋流，移动的大气扰动 和当地的地理环境都有助于 这些系统的开发;然而， 人们对这些现象的了解不够， 预报. 1986年1月至3月， 一个研究该地区冬季风暴的财团 大学和联邦机构。 饰GALE （大西洋低地实验的起源），该项目是 目的是提供关于空中作用的详细资料， 海洋相互作用、行星边界层过程和 中尺度气象过程 主要研究者打算调查 中尺度降水分布演变 发展中的东海岸气旋：（1）调查的影响 的三维运动学和地形上的 降水模式的演变;（2）识别 动态因素，控制的位置和演变， 雨雪区的边界;（3）识别 重力波活动对降水分布的影响。

The rapid development and intensification of winter cyclones in coastal regions presents a major weather forecasting problem. Along the East Coast of the United States, the development of cyclonic storms and frontal systems often occurs along the coastal region of the Carolinas. These weather systems may lead to severe weather in the heavily populated northeast corridor in the form of freezing rain, heavy snowfall, blizzards and extensive coastal erosion. A complex interaction of cold continental air, warm ocean currents, traveling atmospheric disturbances and local geography all appear to contribute to the rapid development of these systems; however, the processes are not well understood and the phenomena are often poorly forecast. In January-March 1986 a cooperative research project to study winter storms in this region was held by a consortium of universities and Federal agencies. Entitled GALE (Genesis of Atlantic Lows Experiment), the project was designed to provide detailed information on the role of air- sea interaction, planetary boundary-layer processes and mesoscale meteorological processes. The Principal Investigator intends to investigate the evolution of mesoscale precipitation distribution associated with evolving east-coast cyclones by: (1) investigating the influence of the three-dimensional kinematics and topography on the evolution of the precipitation patterns; (2) discerning the dynamic factors that control the location and evolution of the boundary between rain-snow areas; (3) discerning the influence of gravity-wave activity on the precipitation distribution.