Investigation of Interactions Among Terrain Drag, Ageostrophic Frontogenesis, Mesoscale Cyclogenesis and Drylines

地形阻力、地转锋生、中尺度旋回和干线之间相互作用的研究

• 批准号: 9121126
• 负责人: Steven Businger
• 金额: $ 25.51万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-15 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9121126&HistoricalAwards=false
• 关键词: Investigation; Interactions; Among; Terrain; Drag

The impact of orography on winter storms has been recognized for several decades. It has been established that terrain of significant relief impacts local weather and current numerical models often do not accurately forecast extreme weather phenomena that are influenced by the local terrain. Using data collected from two already completed field programs (Genesis of Atlantic Lows Experiment and the Stormscale, Operational and Research Meteorology-Fronts Experiment, Systems Test), the Principal Investigators will conduct numerical and observational studies of the structure and evolution of fronts and associated mesoscale weather systems along the East Coast and the continental United States. Particular attention will be paid to mesoscale rapid frontogenesis and subsequent mesoscale cyclogenesis over the East Coast when synoptic-scale flow is impeded by the Appalachian Mountains. Documentation of scale interactions between the synoptic-scale flow patterns and resulting mesoscale weather will be emphasized.

地形对冬季风暴的影响已经得到公认 几十年了 已经确定， 显著的缓解影响了当地的天气和当前的数值 模型通常不能准确预测极端天气现象 受到当地地形的影响。 利用从两个已经完成的实地项目中收集的数据 （大西洋低压实验和风暴尺度的起源， 业务和研究气象学-前沿实验，系统 试验），主要研究者将进行数值和 锋面结构和演变的观测研究， 相关的中尺度天气系统沿着东海岸和 美国大陆。 将特别注意 中尺度快速锋生和随后的中尺度气旋生成 在东海岸，当天气尺度的流动受到阻碍时， 阿巴拉契亚山脉 规模之间的相互作用的文件 天气尺度流型和由此产生的中尺度天气 将被强调。