The Potential Effect the Inflow Boundary Layer has on Hurricane Intensity

美国天气研究计划(USWRP)是一个跨部门活动，旨在开展和实施必要的研究，以改善向国家提供的天气服务。根据这一计划，美国国家科学基金会、美国国家海洋和大气管理局(NOAA)、美国国家航空航天局(NASA)和海军研究办公室正在联合评估和支持USWRP的高优先级研究。USWRP的主要目标之一是进行必要的研究，以改进飓风的路径和强度预报。人们早就知道，来自海面的感热和潜热通量是飓风的能量来源。然而，由于在飓风的大气边界层中获取数据很困难，数据稀缺，热通量和瞬间通量发生的过程也不为人所知。在这项奖励下，首席调查员将与国家海洋和大气管理局合作，进行旨在收集飓风边界层数据的实地实验。实验将集中在飓风眼壁的流入，使用新的高分辨率下降探头和传感器，在NOAA研究飞机上测量湍流尺度的通量。这些实验将提供对为眼壁提供燃料的流入的深度和能量含量的估计，这是影响飓风强度的一个因素；它们还将提供对流入层中感热和潜热通量的估计。将对不同历史的流入进行研究，以确定流入对通过陆地或变暖或变冷的海洋的反应。实时信息也可以传输到国家飓风预报中心，以评估登陆前飓风强度发生变化的可能性。成功完成这项研究可能会改进预测飓风强度的方法。*

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.***