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.

该项目的目的是确定美国东北海岸高影响力天气事件的后广播能力是否以及如何理解和代表空气相互作用。该项目将改善表面层中动量，热和水分的湍流磁通量的模拟，并与大气和海洋边界层结合。该研究还将开发详细的诊断技术，用于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。结果将有助于巩固动态框架，以增强我们对上海过程，空气通量，耦合边界层响应及其在区域天气和气候中的必要作用的科学理解。行星边界层被认为是广泛地球科学界天气和气候模型的不确定性的关键来源。该项目将改善海洋上的大气建模能力，从而使天气和气候建模社区受益，并改善天气和气候服务。该项目将提高我们对控制空气通量的海洋和表面波过程的理解，以及美国东北海岸海洋大气边界层的结构和演变。其中包括对原位的高分辨率全耦合海洋大气波模型模拟的详细验证，并对耦合边界层变量进行了远程感知的观察结果，并直接测量了该地区独特可用的空气通量。该项目将在天气研究和预测（WRF）大气模型中完善并正确纳入最新的耦合海洋大气响应实验（COARE）散装通量算法。然后，研究团队将在各种大气条件下（包括极端的激气旋风和稳定的边界层）进行行星边界层和表面层过程的全面建模和验证工作。通过广泛的敏感性实验和气候量表模拟，以量化海湾流的电流，海面温度的前端和涡流，表面波和潮汐的影响，该项目将确定海洋，表面波，表面波和空气互动的关键作用，在塑造区域性的天气中，该奖项反映了NSF的构建范围。影响审查标准。