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

这项研究探讨了淡水流入可能影响北大西洋北部Finmarchicus初级产量的几种机制。冬季北大西洋涛动指数的变化与整个北大西洋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。了解盆地与区域之间的联系对于解释在GLOBEC研究核心期间(1993-1999年)在大西洋两岸观察到的可变性模式以及从以前的观测中推断过程是重要的，无论是本地的还是远程的。拟议的研究侧重于：(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Calanus finmarchicus分布可能的三个环流配置的发展和维持；以及(3)根据气专委对未来几十年的预测，预测北大西洋的预测趋势和变化。该项目寻求对流域和全球尺度的气候变化如何迫使物理过程进而决定当地和区域尺度生物群落的综合理解，特别关注北大西洋内淡水对循环、混合和海洋生态系统的强迫作用。它的范围是泛区域的，建立在美国在北大西洋西部(及其其他地区)的GLOBEC计划的成功基础上，以解决横跨整个北大西洋北部的气候变化问题。其研究方法包括：综合北大西洋的数据集、多尺度耦合的物理/生物模拟和区域比较研究。在所有这些方面，它都直接响应美国GLOBEC泛区域综合机遇公告。两名研究生将参与这个项目。结果将通过同行评议的科学出版物、在国家会议上的陈述以及其他泛区域GLOBEC调查人员传播。模型输出将通过罗格斯大学的OPeNDAP服务器提供。调查人员将在马萨诸塞州、缅因州和新泽西州的学校就NAO的重要性及其对区域生态系统的影响进行公开演讲，作为正在进行的K-12外联计划的一部分。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，他将从他在太平洋地区和气候变化社区的协会中带来相当多的专业知识。最后，该项目为后GLOBEC在北大西洋的端到端研究(如盆地计划)奠定了基础。

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).