Collaborative Research: Novel Ensemble Based North Atlantic Diagnostics

合作研究：基于北大西洋诊断的新型集成

• 批准号: 2123632
• 负责人: William Dewar
• 金额: $ 138.58万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2123632&HistoricalAwards=false
• 关键词: Collaborative; Research; Novel; Ensemble; Based

Coupled climate models require dynamically consistent and accurate ocean modules. Climate projections are expected to require some degree of parameterization for the eddy component of ocean flows well into the future. The objective of this project is to contribute to ocean eddy parameterization by means of novel examinations of ensembles of ocean simulations. Ensemble approaches are common in climate modeling but have not been employed for studying the ocean dynamics. A North Atlantic ensemble with a particular focus on the Gulf Stream will be analyzed and contrasted with the interior of the North Atlantic. The Gulf Stream exhibits exceptional dynamical features and is expected to highlight the benefits of novel approaches provided by ensembles. The North Atlantic interior eddy field is expected to take on very different, detectable characteristics. The outcomes of this project are expected to improve understanding of eddy parameterizations in both ocean and climate models.The Intellectual Merit of the proposal lies in the development of the theory behind quantitative ensemble analysis and its application to a collection of North Atlantic simulations. The techniques will be ported to the analysis of several North Atlantic regions differing in their leading order dynamics. This analysis will clarify the various roles of the eddy field within the global ocean.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.

耦合气候模型需要动态一致和准确的海洋模块。预计气候预测需要对今后很长一段时间内的洋流涡流部分进行某种程度的参数化。该项目的目标是通过对海洋模拟集合的新颖检查来促进海洋涡流参数化。包围圈方法在气候模拟中很常见，但尚未用于海洋动力学研究。一个北大西洋合奏与墨西哥湾流特别关注将进行分析和对比，与北大西洋的内部。墨西哥湾流具有特殊的动力学特征，预计将突出合奏提供的新方法的好处。北大西洋内部涡流场预计将呈现出非常不同的、可检测的特征。该项目的成果有望提高对海洋和气候模式中涡旋参数化的理解，该提案的智力价值在于发展定量集合分析背后的理论及其在北大西洋模拟集合中的应用。该技术将被移植到几个北大西洋地区的分析不同，在其领先的顺序动态。该分析将阐明全球海洋中涡流场的各种作用。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Impact of the New England Seamount Chain on Gulf Stream Pathway and Variability

新英格兰海山链对湾流路径和变化的影响

• DOI: 10.1175/jpo-d-23-0008.1
• 发表时间: 2023
• 期刊: Journal of Physical Oceanography
• 影响因子: 3.5
• 作者: Chassignet, Eric P.;Xu, Xiaobiao;Bozec, Alexandra;Uchida, Takaya
• 通讯作者: Uchida, Takaya

CaTSM: A Pseudo‐Spectral Thermodynamically Consistent Model of Compressible Flows

CaTSM：可压缩流的伪谱热力学一致模型

• DOI: 10.1029/2022ms003112
• 发表时间: 2022
• 期刊: Journal of Advances in Modeling Earth Systems
• 影响因子: 6.8
• 作者: Brown, Justin M.;Dewar, William;Radko, Timour
• 通讯作者: Radko, Timour

Wavelet‐Based Wavenumber Spectral Estimate of Eddy Kinetic Energy: Idealized Quasi‐Geostrophic Flow

• DOI: 10.1029/2022ms003399
• 发表时间: 2023-03
• 期刊: Journal of Advances in Modeling Earth Systems
• 影响因子: 6.8
• 作者: T. Uchida;Q. Jamet;A. Poje;N. Wienders;W. Dewar;B. Deremble

On the Feedback between Air‐Sea Turbulent Momentum Flux and Oceanic Submesoscale Processes

• DOI: 10.1029/2022jc018767
• 发表时间: 2022-10
• 期刊: Journal of Geophysical Research: Oceans
• 作者: Xinfa Chen;W. Dewar;E. Chassignet;M. Bourassa;S. Morey;4. Ganesh;Gopalakrishnan

Cautionary tales from the mesoscale eddy transport tensor

• DOI: 10.1016/j.ocemod.2023.102172
• 发表时间: 2023-02
• 期刊: Ocean Modelling
• 影响因子: 3.2
• 作者: T. Uchida;D. Balwada;Q. Jamet;W. Dewar;B. Deremble;T. Penduff;J. Sommer