RAPID: Study of Landfalling Tropical Cyclones

RAPID：登陆热带气旋的研究

• 批准号: 1759479
• 负责人: Michael Biggerstaff
• 金额: $ 6.09万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-15 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1759479&HistoricalAwards=false
• 关键词: RAPID; Study; Landfalling; Tropical; Cyclones

This research is for data collection, quality control, archive and preliminary analysis of data collected during Hurricanes Harvey and Irma. Hurricane Harvey was the first major hurricane landfall in the United States since 2005 and is one of the very few Category 4 hurricane landfalls in the modern weather radar era. The researchers plan to use the unprecedented observations from these hurricanes to address questions related to how hurricane dynamics impact wind and rainfall during landfall. The research has direct relevance to improving public safety by providing data to forecasters, emergency managers and engineers. The grant is in response to the NSF Dear Colleague Letter on Hurricane Harvey research (NSF 17-128). The research team will begin quality control, archiving and initial analysis of Hurricane Harvey data and to deploy the dual-polarimetric SMART-R radar and additional surface instrumentation to the landfall of Hurricane Irma. The focus of the research from Harvey and Irma will be on the role of Vortex Rossby Waves (VRWs) and spiral rainbands. The research team will address four topics: 1) Collect observations to address the coupling between the boundary layer and circulations aloft during hurricane landfall, 2) Determine the contribution of vortex Rossby wave-driven rain bands to rainfall during landfall, 3) Provide additional observations to examine the role of inward propagating asymmetries on the development and evolution of meso- and miso-scale vortices in the inner eyewall region of landfalling hurricanes, and 4) Collect observations needed to document the environment of outer rainbands to improve forecasts of tornadic storms within landfalling tropical cyclones.

这项研究用于对飓风哈维和艾尔玛期间收集的数据收集，质量控制，档案和初步分析。 哈维飓风是自2005年以来美国第一个主要的飓风登陆，也是现代天气雷达时代中少数几类飓风登陆的少数几类。 研究人员计划利用这些飓风前所未有的观察结果来解决与飓风动态如何影响登陆过程中的风和降雨有关的问题。 该研究通过向预测员，应急管理者和工程师提供数据来直接与改善公共安全相关。 该赠款是对NSF亲爱的同事Harvey Research（NSF 17-128）的回应。 研究团队将开始对Harvey数据的质量控制，归档和初步分析，并将双极智能R雷达和其他表面仪器部署到飓风Irma的登陆。 Harvey和Irma的研究重点将放在Vortex Rossby Wave（VRWS）和螺旋雨带上。 研究团队将讨论四个主题：1）收集观察结果，以解决飓风登陆期间边界层和循环之间的耦合，2）确定涡旋波驱动的降雨带对降雨的贡献，在登陆过程中降雨，3）提供了更多的观察，以研究向内向的eymetries在Misso-sco-sco-scc的发展中的作用，以研究MESO-SCC的内部范围，飓风和4）收集需要记录外部雨带环境所需的观察结果，以改善登陆热带气旋内龙卷风风暴的预测。

项目成果

Observing Hurricane Harvey’s Eyewall at Landfall

• DOI: 10.1175/bams-d-17-0237.1
• 发表时间: 2019-05
• 期刊: Bulletin of the American Meteorological Society
• 影响因子: 8
• 作者: Pedro L. Fernández-Cabán;A. Alford;M. Bell;M. Biggerstaff;G. Carrie;B. Hirth;K. Kosiba;B. Phillips;J. Schroeder;S. Waugh;Eric Williford;J. Wurman;F. Masters

Near‐Surface Maximum Winds During the Landfall of Hurricane Harvey

• DOI: 10.1029/2018gl080013
• 发表时间: 2019-01
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: A. Alford;M. Biggerstaff;G. Carrie;John L. Schroeder;B. Hirth;Sean M. Waugh