AGS-PRF: Air-Sea Momentum flux at High Wind Speeds in the North Sea

这项博士后研究奖学金(PRF)涉及在北海的一个研究平台上，在高海况期间，对海洋表面附近的大气风情况进行现场测量。这些测量将使用风速测量仪器(风速计)和高速摄像系统相结合进行。这项研究的目的是为了加深我们对风致波浪界面上大气和海洋之间相互作用的理解。这项研究将为早期职业科学家提供一个绝佳的机会，在一个具有挑战性的研究环境中与国际合作者互动，在这一领域的科学前沿工作。这项研究试图在距离德国80公里的北海FIN03研究平台上部署一套传感器，直接测量大风和公海的动量通量。具体的研究目标包括：-在大风条件下获得海气总动量通量的直接野外测量；与周围对大气边界层、海况和局部波浪场的观测相结合，提供了更好的大气-海洋界面附近海-气动量通量的参数化。-测量总风应力在波浪、湍流和粘性贡献之间的分配。-评估与具有多个风和海浪分量的复杂波浪场的每个光谱分量相关的阻力，以便改进大气-海洋耦合模式。该项目与FINO3研究平台上已经进行的风浪相互作用研究相辅相成。

This Post-doctoral Research Fellowship (PRF) involves field measurements of atmospheric wind conditions near the surface of the ocean, during high sea conditions from a research platform in the North Sea. These measurements will be taken using a combination of wind measuring instruments (anemometers) and high speed camera system. The goal of this research is to improve our understanding of the interaction between the atmosphere and the ocean at the interface of wind driven waves. This PRF will provide an early career scientist an outstanding opportunity to interact with international collaborators in a challenging research environment working at the forefront of science in this area.This study seeks to deploy a suite of sensors onboard the FINO3 research platform in the North Sea, 80km offshore from Germany, to take direct measurements of momentum flux in high winds and high seas. The specific research objectives include:- obtain direct field measurements of the total air-sea momentum flux in high wind conditions; which combined with surrounding observations of the atmospheric boundary layer, sea state and local wave field, provide better parameterization of of air-sea momentum flux near the atmosphere-ocean interface.- measure the partitioning of the total wind stress between wave, turbulent, and viscous contributions.- assess the drag associated with each spectral component of the complex wave field with multiple wind and sea swell components and in the presence of whitecaps and sea spray, in order to improve coupled atmosphere-ocean models.The project with complement a wind-wave interaction study already in progress on the FINO3 research platform.