Collaborative Research: A Multipronged Approach to Investigate how Hydrography and Mixing Shape Productive Fjord Ecosystems in Greenland

合作研究：采用多管齐下的方法来研究水文学和混合如何塑造格陵兰岛富有生产力的峡湾生态系统

• 批准号: 2335929
• 负责人: Dustin Carroll
• 金额: $ 7.84万
• 依托单位: San Jose State University Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-09-01 至 2027-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2335929&HistoricalAwards=false
• 关键词: Collaborative; Research; Multipronged; Approach; Investigate

Understanding the intricate relationship between physical oceanography and marine ecosystems is crucial for predicting the impacts of climate variability and shifts on productive Arctic ecosystems. This research focuses on Greenland fjords and adjacent shelf seas, which are areas of immense ecological and socio-economic importance, particularly to Arctic Indigenous communities. These ecosystems, vital for local fisheries, are influenced by physical transport processes such as water circulation and mixing. In collaboration with scientists at the Greenland Institute of Natural Resources (GINR), the researchers will investigate the connections between physical oceanography and marine ecology in the fjord system around Greenland’s capital, Nuuk. By combining field observations with an advanced computer model of the fjord system, the researchers will examine how physical transport processes affect nutrient supply, primary productivity, and ultimately, the food supply for fish and marine mammals. This endeavor not only advances scientific understanding, but also addresses broader societal concerns by creating knowledge to inform sustainable management practices, thereby enhancing the resilience of local communities to climate-induced changes in marine resources. The project is led by early career scientists, including two who are women. The project will also train two postdoctoral fellows and will provide opportunities for the public in the U.S. and Greenland to engage with the project.The project involves targeted field campaigns in the fjord system around Nuuk, Greenland to collect hydrographic, turbulence, nutrient and benthic fauna samples near potential mixing hotspots such as sills, narrow straits or the steep fjord walls, and in winter conditions in close proximity to a glacier front. A coupled ocean, sea ice, and marine biogeochemistry model, constrained with observational data, will be used to elucidate the mechanisms through which physical transport influences ecological dynamics in the fjords. Specific objectives include assessing the role of lateral transport in spatial nutrient distribution, and evaluating the impact of vertical mixing on primary productivity. Based on the modeling framework and maps of distribution of benthic habitats derived from video surveys, as well as process-based links inferred from the collected observations, the researchers will link benthic habitat distribution with the variability of physical and biogeochemical fjord conditions. Simulations of future conditions will offer a framework for predicting ecosystem responses to environmental changes, a product that will aid in the assessment of the future of vital marine resources upon which local Indigenous communities depend. The project will host outreach events in Nuuk and Kapisillit, and a scientific workshop at the Greenland Institute of Natural Resources to discuss the utility of the data-constrained coupled physical-biogeochemistry model. These events will facilitate U.S.-Greenland research collaborations. Within the U.S., the project supports the career development of early-career scientists and will further develop a diverse STEM workforce through outreach events that encourage young women to pursue Arctic marine science.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.

了解物理海洋学与海洋生态系统之间的复杂关系对于预测气候变异性的影响以及对生产性北极生态系统的转变至关重要。这项研究的重点是格陵兰峡湾和邻近的货架海，这些架子是巨大的生态和社会经济重要性的领域，尤其是对北极土著社区。这些生态系统对当地渔业至关重要，受水循环和混合等物理运输过程的影响。与格陵兰自然资源研究所（GINR）的科学家合作，研究人员将调查物理海洋学与海洋生态学之间在格陵兰首都努克（Nuuk）附近的峡湾系统中的联系。通过将现场观测与峡湾系统的高级计算机模型相结合，研究人员将研究物理运输过程如何影响养分供应，主要生产力，最终是鱼类和海洋哺乳动物的食物供应。这项工作不仅可以提高科学理解，而且通过创建知识来告知可持续的管理实践，从而增强了当地社区对气候引起的海洋资源变化的弹性，从而解决了更广泛的社会关注。该项目由早期职业科学家领导，其中包括两个是女性。 The project will also train two postdoctoral fellows and will provide opportunities for the public in the U.S. and Greenland to engage With the project.The project involves targeted field campaigns in the fjord system around Nuuk, Greenland to collect hydrographic, turbulence, nutrient and benthic fauna samples near potential mixing hotspots such as sills, narrow straits or the steel fjord walls, and in winter conditions in close proximity to a glacier 正面。通过观察数据约束的耦合海洋，海冰和海洋生物地球化学模型将用于阐明物理运输影响峡湾生态动力学的机制。特定对象包括评估横向转运在空间营养分布中的作用，并评估垂直混合对初级生产的影响。基于从视频调查中得出的底栖生物栖息地的建模框架和图表，以及从收集的观察结果推论的基于过程的联系，研究人员将将底栖生境分布与物理和生物地球化学峡湾的变异性联系起来。对未来条件的模拟将提供一个框架，以预测生态系统对环境变化的反应，该产品将有助于评估当地土著社区所依赖的重要海洋资源的未来。该项目将在Nuuk和Kapisillit举办外展活动，并在Greenland自然资源研究所进行科学研讨会，讨论数据约束耦合的物理生物地球化学模型的实用性。这些活动将支持美国绿地研究合作。该项目在美国境内支持早期职业科学家的职业发展，并将通过宣传活动进一步发展潜水员STEM劳动力，这些活动鼓励年轻妇女攻读北极海洋科学。这项奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子优点和更广泛的影响审查标准来通过评估而被视为珍贵的支持。