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

该博士后研究奖学金（PRF）涉及在北海的一个研究平台上，在高海况下对海洋表面附近的大气风况进行实地测量。这些测量将使用风测量仪器（风速计）和高速摄像系统的组合进行。这项研究的目的是提高我们对大气和海洋在风浪界面上的相互作用的理解。该PRF将为职业生涯早期的科学家提供一个绝佳的机会，在具有挑战性的研究环境中与该领域科学前沿的国际合作者进行互动。这项研究试图在北海的FINO3研究平台上部署一套传感器，距离德国80公里，以直接测量大风和公海中的动量通量。具体研究目标包括：-获得大风条件下海气总动量通量的直接现场测量；结合大气边界层、海况和局地波场的周边观测资料，可以较好地参数化大气-海洋界面附近的海气动量通量。-测量总风应力在波浪，湍流和粘性贡献之间的分配。-评估包含多个风和海涌分量以及存在白浪和浪花的复杂波场的每个频谱分量相关的阻力，以便改进耦合的大气-海洋模式。该项目补充了FINO3研究平台上正在进行的风波相互作用研究。

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.