The Potential Effect the Inflow Boundary Layer has on Hurricane Intensity

流入边界层对飓风强度的潜在影响

• 批准号: 9714410
• 负责人: Gary Barnes
• 金额: $ 14.42万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-15 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9714410&HistoricalAwards=false
• 关键词: Potential; Effect; Inflow; Boundary; Layer

9714410Barnes The U.S. Weather Research Program (USWRP) is an interagency activity designed to perform and implement the research necessary to improve the delivery of weather services to the nation. Under this Program, the National Science Foundation, the National Oceanic and Atmospheric Administration (NOAA), the National Aeronautics and Space Administration (NASA) and the Office of Naval Research are jointly evaluating and supporting research of high priority to the USWRP. One of the primary goals of the USWRP is to perform the research necessary to improve track and intensity forecasts of hurricanes. It has been known for some time that sensible and latent heat fluxes from the sea surface are the energy source for hurricanes. Due to the difficulty, however, of obtaining data in the atmospheric boundary layer of a hurricane, data is scarce and the processes by which heat and moment fluxes occur are not well-known. Under this award and in cooperation with the National Oceanic and Atmospheric Administration, the Principal Investigator will conduct field experiments designed to collect data in the boundary layer of hurricanes. The experiments will concentrate on the inflow to the hurricane eyewall utilizing new high resolution dropwindsondes and sensors on a NOAA research aircraft that measure turbulent-scale fluxes. The experiments will provide an estimate of the depth and the energy content of the inflow that fuels the eyewall which is one factor that affects the intensity of the hurricane; they will also provide estimates of the sensible and latent heat fluxes in the inflow layer. Inflows with differing histories will be examined to determine how the inflow responds to passage over land, or warmer or cooler seas. Real time information can also be transmitted to the National Hurricane Forecast Center appraising them of the likelihood of a change in the intensity of hurricane prior to landfall. Successful completion of this research could lead to improved methods for predicting the intensity of hurricanes.***

9714410Barnes美国天气研究计划（USWRP）是一项机构间活动，旨在执行和实施改善天气服务到国家的必要研究。 根据该计划，国家科学基金会，国家海洋与大气管理局（NOAA），国家航空航天管理局（NASA）和海军研究办公室共同评估和支持USWRP优先级的研究。 USWRP的主要目标之一是执行必要的研究，以改善飓风的轨道和强度预测。一段时间以来，海面的明智和潜在热通量是飓风的能量来源。 然而，由于难以在飓风的大气边界层中获得数据，数据很少，并且发生热量和力矩通量的过程并不众所周知。 根据该奖项并与国家海洋和大气管理局合作，首席研究员将进行旨在在飓风边界层收集数据的现场实验。 这些实验将集中在飓风眼睛的流入上，利用新的高分辨率下降滴管和传感器上的NOAA研究飞机，该飞机测量了湍流的速度。 该实验将提供估计流入的深度和能量含量，从而燃烧眼睛，这是影响飓风强度的一个因素。他们还将提供流入层中明智和潜在热通量的估计。 将检查具有不同历史的流入，以确定流入如何响应陆地上的通道，较温暖或凉爽的海洋。 实时信息也可以传输到国家飓风预测中心，以评估他们在登陆前发生变化的可能性。 这项研究的成功完成可能会导致改进的方法来预测飓风的强度。***