CAREER: Investigating the impacts of sea breeze and steep surface gravity waves on nearshore air-sea fluxes

职业：研究海风和陡峭的表面重力波对近岸海气通量的影响

• 批准号: 2340712
• 负责人: Nathan Laxague
• 金额: $ 73.8万
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-09-01 至 2029-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2340712&HistoricalAwards=false
• 关键词: CAREER; Investigating; impacts; sea; breeze

The overarching goal of this project is to advance understanding of the role that ocean surface waves play in mediating the exchange of momentum and heat between the earth’s atmosphere and ocean – especially over spatial and temporal scales that are presently under-resolved by observations and regional models. This will be achieved via a field campaign to make observations of surface wave characteristics and air-sea fluxes. The results will enable a more detailed description of the dynamical connection between atmosphere and ocean as mediated by ocean surface waves. The educational component of the project will focus on developing and implementing new educational modules that integrate surface waves and air-sea interaction within ocean engineering and oceanography curricula and engaging with the public of northern New England through the development of new interactive exhibits at the Seacoast Science Center of Rye, NH.This project addresses the relationship between ocean surface waves and air-sea fluxes. Ocean surface waves affect the mean fluxes of momentum, heat, and gas across the air-sea interface. The project will yield fully directional spatiotemporal measurements of surface waves with centimeter to decameter-scale wavelengths, the degree to which those waves are modified by time-varying wind forcing and long surface waves, and the effect of that modulation on air-sea fluxes. The project will measure and assess the degree to which time-varying wind forcing impacts the growth of young wind waves and variability of air-sea fluxes in nearshore waters. The role of intermittency in steep surface gravity waves in modulating turbulent air-sea fluxes will be quantified. The results will be used to improve understanding of the impact of surface waves on air-sea interaction in coastal zones in the presence of variable environmental conditions.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目的总体目标是提高人们对海面波在介导地球大气和海洋之间的动量和热量交换中所起的作用的理解，尤其是在空间和临时尺度上，观察和区域模型呈现不足。这将通过现场运动来实现，以观察表面波特征和空气通量。结果将使海洋表面波介导的大气与海洋之间的动态连接更详细地描述。该项目的教育组成部分将着重于开发和实施新的教育模块，这些模块在海洋工程和海洋学课程中整合地面波和空气互动，并通过在NH的RYE开发新的互动展览中与北部新英格兰北部的公众互动。海面波影响整个空气接口的动量，热量和气体的平均通量。该项目将产生以厘米至日期尺度波长的表面波的完全定向的空间时间测量，这些波浪是通过随时间变化的风力强迫和长表面波修改的程度，以及该调制对空气磁通的影响。该项目将衡量和评估随着时间变化的风能影响年轻风波的生长以及近岸水域的空气通量变化的程度。间歇性在钢表面重力波在调节湍流通量中的作用将被量化。结果将用于提高对沿海地区空气环境环境条件下空气相互作用的影响的理解。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的评估来审查标准的评估。