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

本研究探讨了北大西洋北部淡水流入可能影响Calanus finmarchicus初级生产的几种机制。冬季北大西洋涛动指数的变率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核心研究期间（1993-1999年）和从早期观测到的大西洋两岸观测到的变率模式，以及从这些观测到的模式推断本地或远程的过程非常重要。建议的研究重点是：(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Calanus finmarchicus分布可能的三环流结构的发展和维持；(3)根据IPCC未来几十年的预测预测北大西洋的趋势和变化。该项目寻求对盆地和全球尺度的气候变化如何影响物理过程的综合理解，这些物理过程反过来又决定了局部和区域尺度的生物群落，特别关注北大西洋内环流、混合和海洋生态系统的淡水强迫。它是泛区域范围的，以美国在北大西洋西部（及其其他地区）的GLOBEC项目的成功为基础，旨在解决跨越整个北大西洋北部的气候变化问题。其研究方法包括：跨北大西洋数据集综合、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，它直接回应了美国的GLOBEC泛区域综合机会公告。两名研究生将参与这个项目。研究结果将通过同行评议的科学出版物、在国家会议上的报告以及向其他泛区域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讲座，作为正在进行的K-12推广计划的一部分。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，他将带来太平洋地区和气候变化社区协会的大量专业知识。最后，该项目为后globec在北大西洋的端到端研究奠定了基础（例如盆地项目）。

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).