Collaborative Research: Recent Changes in Shelfbreak Exchange on the Northeast Shelf: Process-Oriented Observations of Salinity Maximum Intrusions

合作研究：东北大陆架断架交换的最新变化：盐度最大入侵的面向过程的观测

• 批准号: 1851261
• 负责人: Glen Gawarkiewicz
• 金额: $ 127.69万
• 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: 2019
• 资助国家: 美国
• 起止时间: 2019-08-01 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1851261&HistoricalAwards=false
• 关键词: Collaborative; Research; Recent; Changes; Shelfbreak

This project will examine warming of the continental shelf of the northeast US and determine the relationship to warm core rings from the Gulf Stream. Historical observations from several sources including the Ocean Observatories Initiative (OOI) Pioneer Array will be analyzed to determine the connection between shelf warming and warm core rings. A field campaign will include observations from autonomous underwater vehicles equipped with sensors to observe the dynamic processes that govern the warm and saline intrusions of water. The results will yield insights into how and why warming events occur on the continental shelf. The trend in warming on the New England shelf has implications for regional climate and local commercial fisheries. The project includes collaboration with the Commercial Fisheries Association and communication of research results to local fishing communities. This project will use field observations and analyses of historical data to examine process known to drive exchange between the shelf and warm core rings on the Northeast U.S. continental shelf and the relationship to recent warming on the shelf and slope region. The study will focus on the pycnocline salinity maximum and Gulf Stream warm core rings. The field work, which will take place during two cruises (in 2020 and 2021) will employ autonomous underwater vehicles (AUVs) equipped with sensors to profile velocity, temperature, salinity, microstructure, turbidity, chlorophyll, fluorescence, and colored dissolved organic matter. The observations will be used to produce three-dimensional maps of one or more saline intrusions and to distinguish between the relative importance of double diffusive and turbulent dynamics in the pycnocline salinity maximum.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.

该项目将研究美国东北部大陆架的变暖，并确定与墨西哥湾流温暖核心环的关系。将分析来自多个来源（包括海洋观测计划（OOI）先锋阵列）的历史观测结果，以确定陆架变暖与暖核环之间的联系。现场活动将包括配备传感器的自主水下航行器的观测，以观察控制温暖和咸水入侵的动态过程。研究结果将深入了解大陆架变暖事件如何以及为何发生。新英格兰大陆架变暖的趋势对区域气候和当地商业渔业产生影响。该项目包括与商业渔业协会的合作以及向当地渔业社区传达研究成果。该项目将利用实地观测和历史数据分析来研究已知的推动美国东北部大陆架大陆架和暖核环之间交换的过程，以及与近期大陆架和斜坡区域变暖的关系。该研究将重点关注密斜盐度最大值和湾流暖核环。现场工作将在两次巡航期间（2020 年和 2021 年）进行，将使用配备传感器的自主水下航行器 (AUV) 来分析速度、温度、盐度、微观结构、浊度、叶绿素、荧光和有色溶解有机物。这些观测结果将用于生成一个或多个盐分入侵的三维地图，并区分重装斜层盐度最大值中双扩散和湍流动力学的相对重要性。该奖项反映了 NSF 的法定使命，并被认为值得通过以下方式获得支持：使用基金会的智力价值和更广泛的影响审查标准进行评估。

项目成果

Interannual and seasonal asymmetries in Gulf Stream Ring Formations from 1980 to 2019

1980年至2019年墨西哥湾流环层的年际和季节不对称性

• DOI: 10.1038/s41598-021-81827-y
• 发表时间: 2021-12
• 期刊: Scientific Reports
• 影响因子: 4.6
• 作者: Silver, Adrienne;Gangopadhyay, Avijit;Gawarkiewicz, Glen;Silva, E. Nishchitha;Clark, Jenifer
• 通讯作者: Clark, Jenifer

Autonomous Tracking of Salinity-Intrusion Fronts by a Long-Range Autonomous Underwater Vehicle

远程自主水下航行器自主跟踪盐度入侵前沿

• DOI: 10.1109/joe.2022.3146584
• 发表时间: 2022-04
• 期刊: IEEE Journal of Oceanic Engineering
• 影响因子: 4.1
• 作者: Zhang, Yanwu;Yoder, Noa;Kieft, Brian;Kukulya, Amy;Hobson, Brett W.;Ryan, Svenja;Gawarkiewicz, Glen G.
• 通讯作者: Gawarkiewicz, Glen G.

Increasing Frequency of Mid‐Depth Salinity Maximum Intrusions in the Middle Atlantic Bight

大西洋中部湾中深度盐度最大入侵的频率增加

• DOI: 10.1029/2021jc018233
• 发表时间: 2022-06
• 期刊: Journal of Geophysical Research: Oceans
• 作者: Gawarkiewicz, G.;Fratantoni, P.;Bahr, F.;Ellertson, A.
• 通讯作者: Ellertson, A.

Increased Gulf Stream warm core ring formations contributes to an observed increase in salinity maximum intrusions on the northeast shelf

墨西哥湾流暖核环形成的增加导致东北陆架盐度最大入侵的增加

• 发表时间: 2023-05
• 期刊: Scientific reports
• 影响因子: 4.6
• 作者: Silver, A.;Gangopadhyay, A.;Gawarkiewicz, G.;Fratantoni, P.;Clark, J.
• 通讯作者: Clark, J.