Collaborative Research: GLOBEC Pan Regional Synthesis: The Effect of Varying Freshwater Inputs on Regional Ecosystems in the North Atlantic

合作研究：GLOBEC 泛区域综合：不同淡水输入对北大西洋区域生态系统的影响

• 批准号: 0815679
• 负责人: Avijit Gangopadhyay
• 金额: $ 25.96万
• 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: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0815679&HistoricalAwards=false
• 关键词: Collaborative; Research; GLOBEC; Pan; Regional

This research addresses several mechanisms by which freshwater influx might impact the primary production of Calanus finmarchicus in the northern North Atlantic Ocean. Variability in the winter North Atlantic Oscillation index is related to changes in various physical and biological parameters across the entire North Atlantic, but the mechanisms underlying those relationships are not well known. Understanding basin-to-regional connections is important for interpreting patterns of variability observed on both sides of the Atlantic during the core GLOBEC study period (1993-1999) and from earlier observations, and inferring process, whether local or remote, from those observed patterns. The proposed research is focused on: (1) comparing and contrasting the impact of freshwater influx to the eastern and western sides of the North Atlantic, (2) understanding the development and maintenance of a possible three-gyre configuration of Calanus finmarchicus distribution in the North Atlantic, and (3) predicting the projected trends and variations in the North Atlantic Ocean based on IPCC projections for upcoming decades.This project seeks a synthetic understanding of how basin- and global-scales changes in climate force physical processes that in turn determine local- and regional-scale biological communities, with a particular focus on freshwater forcing of circulation, mixing, and marine ecosystems within the North Atlantic Ocean. It is pan-regional in scope, building upon the successes of the U.S. GLOBEC program in the Western North Atlantic (and its other regions) to address climate variability issues spanning the entire northern North Atlantic Ocean. Its research approaches include: synthesis of datasets across the North Atlantic, multi-scale coupled physical/biological modeling, and comparative regional studies. In all these respects it responds directly to the U.S. GLOBEC Pan-Regional Synthesis Announcement of Opportunity.Two graduate students will participate in this project. Results will be disseminated by peer-reviewed scientific publications, presentations at national conferences, and to other Pan-Regional GLOBEC investigators. Model output will be made available via the Rutgers OPeNDAP server. The investigators will give public lectures in Schools of Massachusetts, Maine and New Jersey on the importance of NAO and its impact on the regional ecosystem as part of an ongoing K-12 outreach program. The forecast scenarios for the next two decades will increase awareness of Climate Change. Dr. Fei Chai is a New Investigator to the GLOBEC program and will bring considerable expertise from his associations in the Pacific and in the Climate Change communities. Finally, this project sets the stage for post-GLOBEC end-to-end studies in the North Atlantic (e.g., the BASIN program).

这项研究解决了几个机制，淡水流入可能会影响初级生产的哲水蚤finmarchicus在北大西洋北方。冬季北大西洋涛动指数的变化与整个北大西洋的各种物理和生物参数的变化有关，但这些关系背后的机制尚不清楚。了解流域与区域之间的联系对于解释GLOBEC核心研究期间（1993-1999年）和早期观测中在大西洋两岸观测到的变化模式以及从这些观测模式中推断过程（无论是本地的还是远程的）都很重要。拟议的研究重点是：（1）比较和对比淡水流入对北大西洋东西两侧的影响，（2）了解北大西洋芬兰哲水蚤分布的可能的三个环流配置的发展和维持，以及（3）根据政府间气候变化专门委员会对未来几十年的预测，预测北大西洋的预测趋势和变化。流域和全球尺度的气候变化如何影响物理过程，进而决定地方和区域尺度的生物群落，特别关注北大西洋内淡水对循环、混合和海洋生态系统的影响。它的范围是泛区域的，建立在美国GLOBEC计划在西北大西洋（及其其他地区）的成功基础上，以解决整个北大西洋北方的气候变率问题。其研究方法包括：跨北大西洋的数据集的合成，多尺度耦合物理/生物建模和比较区域研究。在所有这些方面，它直接响应美国GLOBEC泛区域综合机会公告。两名研究生将参加这个项目。研究结果将通过同行评审的科学出版物、国家会议上的演讲以及其他泛区域GLOBEC研究人员进行传播。模型输出将通过罗格斯OPeNDAP服务器提供。作为正在进行的K-12外展计划的一部分，调查人员将在马萨诸塞州、缅因州和新泽西的学校就NAO的重要性及其对区域生态系统的影响进行公开讲座。未来20年的预测情景将提高人们对气候变化的认识。柴飞博士是GLOBEC项目的新研究员，他将从太平洋和气候变化社区的协会中带来大量的专业知识。最后，该项目为在北大西洋进行GLOBEC后的端到端研究奠定了基础（例如，BASIN计划）。