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: 1851242
• 负责人: Avijit Gangopadhyay
• 金额: $ 24.12万
• 依托单位: University of Massachusetts, Dartmouth
• 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 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1851242&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。将分析包括海洋观测站倡议（OOI）先锋阵列在内的几个来源的历史观测结果，以确定大陆架变暖和暖核环之间的联系。实地活动将包括从配备传感器的自主水下航行器进行观测，以观察控制水的温暖和盐水入侵的动态过程。研究结果将有助于深入了解大陆架上变暖事件是如何以及为什么发生的。新英格兰大陆架变暖的趋势对区域气候和当地商业渔业有影响。该项目包括与商业渔业协会合作以及向当地渔业社区传播研究成果。该项目将利用实地观测和历史数据分析，研究已知的驱动美国东北部大陆架上的大陆架和暖核环之间交换的过程，以及与大陆架和斜坡地区最近变暖的关系。这项研究将侧重于密度跃层盐度最大值和墨西哥湾流暖核环。实地工作将在两次巡航（2020年和2021年）期间进行，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。这些观测结果将被用于制作一个或多个盐水侵入体的三维地图，并区分密度跃层盐度maxim.This奖项反映了NSF的法定使命的相对重要性双扩散和湍流动力学，并已被认为是值得通过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的支持。

项目成果

Cyclical trends in the biomass and mean body weight indices of two Northwest Atlantic squid species and their synchronies with Gulf Stream latitudinal positions

两种西北大西洋鱿鱼物种的生物量和平均体重指数的周期性趋势及其与湾流纬度位置的同步性

• DOI: 10.1007/s00227-023-04237-w
• 发表时间: 2023
• 期刊: Marine Biology
• 影响因子: 2.4
• 作者: Hendrickson, Lisa C.;Gangopadhyay, Avijit;Moustahfid, Hassan
• 通讯作者: Moustahfid, Hassan

Forecasting the Gulf Stream Path Using Buoyancy and Wind Forcing Over the North Atlantic

利用北大西洋的浮力和风力来预测墨西哥湾流路径

• DOI: 10.1029/2021jc017614
• 发表时间: 2021
• 期刊: Journal of Geophysical Research: Oceans
• 作者: Silver, Adrienne;Gangopadhyay, Avijit;Gawarkiewicz, Glen;Taylor, Arnold;Sanchez‐Franks, Alejandra
• 通讯作者: Sanchez‐Franks, Alejandra

Monthly and Annual contour lines of the zero and the positive maximum of the Wind Stress Curl over Western North Atlantic during 1980-2019 and the Gulf Stream path during 1993-2019.

1980-2019 年北大西洋西部风应力旋涡零值和正最大值以及 1993-2019 年墨西哥湾流路径的月度和年度等高线。

• DOI: 10.5281/zenodo.8217388
• 发表时间: 2023
• 期刊: Zenodo
• 作者: Gifford, Ian;Silver, Adrienne;Gangopadhyay, Avijit;Andres, Magdalena;Gawarkiewicz, Glen;Oliver, Hilde
• 通讯作者: Oliver, Hilde

Wind Stress, Wind Stress Curl, and Upwelling Velocities in the Northwest Atlantic (80-45W, 30-45N) during 1980-2019

1980-2019年西北大西洋（80-45W，30-45N）的风应力、风应力旋度和上升流速度

• DOI: 10.5281/zenodo.8200832
• 发表时间: 2023
• 期刊: Zenodo
• 作者: Gifford, Ian;Gangopadhyay, Avijit;Andres, Magdalena;Gawarkiewicz, Glen;Oliver, Hilde;Silver, Adrienne
• 通讯作者: Silver, Adrienne

Spatial Variability of Movement, Structure, and Formation of Warm Core Rings in the Northwest Atlantic Slope Sea

西北大西洋坡海暖核环的运动、结构和形成的空间变化

• DOI: 10.1029/2022jc018737
• 发表时间: 2022
• 期刊: Journal of Geophysical Research: Oceans
• 作者: Silver, Adrienne;Gangopadhyay, Avijit;Gawarkiewicz, Glen;Andres, Magdalena;Flierl, Glenn;Clark, Jenifer
• 通讯作者: Clark, Jenifer