Quantifying the Effects of Swell on the Air-Sea Momentum Flux

量化膨胀对海气动量通量的影响。drennanrsmas动量通量和速度剖面的现场测量将有助于在多个粗糙度尺度下推导新的海气通量参数化。近地面湍流将在波罗的海的一个海洋站点通过海气相互作用浮标（ASIS）进行测量。定向波测量将由ASIS和两个乘波浮标进行。气象测量将在附近的一个塔上进行。选择这个地点是为了提供一个与风场一致的膨胀区，一个大范围的大气稳定性和中低风区。将对这些数据进行分析，以得出在涌浪主导或混合海区表面粗糙度与动量通量之间更好的关系。将新的结果结合到最先进的耦合模型中，将会改善飓风和热带风暴的预报。

Quantifying the Effects of Swell on the Air-Sea Momentum FluxW. DrennanRSMASField measurements of momentum fluxes and velocity profiles will be used to help derive a new parameterization of air-sea fluxes under multiple roughness scales. Near-surface turbulence will be measured from an air-sea interaction spar buoy (ASIS) at a marine site in the Baltic Sea. Directional wave measurements will be made from ASIS and two waverider buoys. Meteorological measurements will be made from a nearby tower. This site was chosen to provide a regime of swell aligned with the wind field, a wide-range of atmospheric stability and a low-moderate wind-regime. The data will be analyzed to derive a better relationship between surface roughness and momentum flux in swell dominated or mixed sea regions. Incorporation of the new results into state-of-the-are coupled models should lead to improved forecasts of hurricanes and tropical storms.