Improving understanding of coupled impacts of oceans and waves on air-sea fluxes in the US Northeast Coast

增进对海洋和波浪对美国东北海岸海气通量的耦合影响的了解

• 批准号: 2148120
• 负责人: Hyodae Seo
• 金额: $ 83.18万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-03-01 至 2025-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2148120&HistoricalAwards=false
• 关键词: Improving; understanding; coupled; impacts; oceans

The goal of the project is to determine if and how understanding and representing air-sea interactions improves the hindcast capabilities of high-impact weather events in the US Northeast Coast. The project will improve the simulations of turbulent fluxes of momentum, heat, and moisture in the surface layer and their coupling with the atmospheric and oceanic boundary layers. The research will also develop detailed diagnostic techniques for utilizing the existing ocean-atmosphere coupled boundary layer datasets to evaluate the high-resolution coupled model simulations. The results will help solidify the dynamical framework for enhancing our scientific understanding of upper ocean processes, air-sea fluxes, coupled boundary layer responses, and their imperative roles in regional weather and climate. The planetary boundary layer is recognized as a critical source of uncertainty for weather and climate models in the broader earth science community. The project will improve atmospheric modeling capabilities over the oceans, benefiting the weather and climate modeling communities and leading to improved weather and climate services.The project will improve our understanding of the ocean and surface wave processes controlling air-sea fluxes and the structure and evolution of the marine atmospheric boundary layer in the US Northeast Coast. Included are detailed validations of high-resolution fully coupled ocean atmosphere-wave model simulations against in situ and remotely sensed observations of coupled boundary layer variables and directly measured air-sea fluxes uniquely available in the region. The project will refine and correctly incorporate the latest Coupled Ocean-Atmosphere Response Experiment (COARE) bulk flux algorithm in the Weather Research and Forecast (WRF) atmospheric model. The research team will then undertake comprehensive modeling and validation efforts of the planetary boundary layer and surface-layer processes under various atmosphere conditions, including extreme extratropical cyclones and stable boundary layers. Through extensive sensitivity experiments and climate scale simulations to quantify the impacts of the Gulf Stream current, sea surface temperature fronts and eddies, surface waves, and tides, the project will determine the critical roles of the oceans, surface waves, and air-sea interaction in shaping regional weather and climate.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.

该项目的目标是确定理解和表示海气相互作用是否以及如何提高美国东北海岸高影响天气事件的后报能力。该项目将改进对表层动量、热量和水分的湍流通量及其与大气和海洋边界层的耦合的模拟。该研究还将开发详细的诊断技术，利用现有的海洋-大气耦合边界层数据集来评估高分辨率耦合模型模拟。研究结果将有助于巩固动力框架，增强我们对上层海洋过程、海气通量、耦合边界层响应及其在区域天气和气候中的重要作用的科学理解。在更广泛的地球科学界中，行星边界层被认为是天气和气候模型不确定性的关键来源。该项目将提高海洋大气模拟能力，使天气和气候模拟界受益，并改善天气和气候服务。该项目将增进我们对控制海气通量及其结构和演化的海洋和表面波过程的理解美国东北海岸海洋大气边界层。其中包括对高分辨率全耦合海洋大气-波浪模型模拟的详细验证，对照耦合边界层变量的原位和遥感观测以及该地区独有的直接测量的空气-海洋通量。该项目将完善并正确地将最新的海洋-大气耦合响应实验（COARE）总体通量算法纳入天气研究和预报（WRF）大气模型中。研究小组随后将对各种大气条件下的行星边界层和表面层过程进行全面的建模和验证工作，包括极端温带气旋和稳定边界层。通过广泛的敏感性实验和气候尺度模拟来量化墨西哥湾流、海面温度锋和涡流、表面波和潮汐的影响，该项目将确定海洋、表面波和海气相互作用的关键作用该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。