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认可了几十年。 已经确定，重要的救济地形会影响当地天气和当前的数值模型通常无法准确预测受当地地形影响的极端天气现象。 使用从两个已经完成的现场程序收集的数据（大西洋低点实验的起源以及Stormscale，运营和研究气象学 - 前实验，系统测试），首席研究人员将对阵线的结构和相关中尺度的结构和进化进行数值和观察性研究东海岸和美国大陆的天气系统。 当阿巴拉契亚山脉阻碍天气级流动时，将特别注意在东海岸的中尺度快速额叶生成和随后在东海岸的中尺度循环发生。 将强调天气尺度流量模式与产生的中尺度天气之间的比例相互作用的文档。