IAI Workshop: Global Change Effects in the Southwestern Atlantic

9530118 Matano远程观测表明，世界海洋中能量最大的区域是黑潮、墨西哥湾流、阿古拉斯反射和巴西/马尔维纳斯汇合处的近海延伸。在所有这些地区中，巴西/马尔维纳斯汇合处是迄今为止研究最少的。巴西/马尔维纳斯合流的特点是沿巴西、乌拉圭和阿根廷的大陆斜坡具有最强的海洋温度梯度和较大的季节性纬度位移（高达5= 0）。由于巴西/马尔维纳斯汇合点影响着拉丁美洲经济上最重要的地区之一的渔业和农业发展，因此了解与汇合点有关的物理和生物化学过程符合该区域的利益。从更一般的角度来看，巴西/马尔维纳斯汇合处对于影响全球热盐环流的强水团通风很重要，因此对全球气候变化很重要。以往关于该地区环流的研究只强调了海洋和大气环流的孤立方面，而没有尝试将它们作为一个耦合系统进行研究。来自阿根廷、巴西、墨西哥、乌拉圭和美国的科学家将举行会议，详细制定一个研究项目，调查巴西/马尔维纳斯汇流的耦合模型，从而向IAI提交第二阶段启动资助提案。这项提议汇集了美洲全球变化研究所（IAI）成员国的与会者。美洲全球变化研究所是美国的一项倡议，旨在促进美洲科学机构就全球变化问题进行合作研究。NSF是美国政府指定的在IAI中履行美国职责的主要机构。这次研讨会将汇集来自阿根廷、巴西、墨西哥、乌拉圭和美国的科学家，共同制定一项研究计划，调查巴西/马尔维纳斯汇流，这是一条沿巴西、乌拉圭和阿根廷大陆斜坡流过的洋流。这是目前世界上最具活力的地区之一，并强烈影响着拉丁美洲最重要的经济地区之一的渔业和农业发展。巴西/马尔维纳斯汇合处对世界海水的周转产生强烈影响，从而对全球气候变化产生强烈影响。巴西/马尔维纳斯汇流也是世界上研究最少的洋流之一，它位于大西洋的一个区域，海洋学界对它的了解仍然很少。参与该项目的四个国家汇集了美洲一些最重要的研究小组和计算机建模设施来解决这个问题，并将向美洲全球变化研究所（IAI）提出一个研究项目，这是美国的一项倡议，旨在促进美洲科学机构之间就全球变化问题进行合作研究。美国国家科学基金会是美国政府指定的在IAI中履行美国职责的主要机构。*** --========================_ 15507136 = = _—

9530118 Matano Remote observations indicate that the most energetic regions of the world's oceans are the offshore extensions of the Kuroshio Current, the Gulf Stream, the Agulhas retroflection, and the Brazil/Malvinas Confluence. Of all these regions, the Brazil/Malvinas Confluence is, by far, the least studied. The Brazil/Malvinas Confluence is characterized by one of the strongest oceanic temperature gradients and large seasonal latitudinal displacements (up to 5=B0) along the continental slopes of Brazil, Uruguay, and Argentina. Since the Brazil/Malvinas Confluence influences the fisheries and agricultural development of one of the most economically important areas of Latin America, it is of regional interest to understand the physical and biochemical processes with which it is associated. From a more general point of view, the Brazil/Malvinas Confluence is important for a strong water mass ventilation that affects the global thermohaline circulation and therefore is important in global climate change. Previous studies on the circulation in this region have only emphasized isolated aspects of the oceanic and atmospheric circulations without any attempt to study them as a coupled system. Scientists from Argentina, Brazil, Mexico, Uruguay, and the United States will meet to elaborate a research project to investigate coupled models of the Brazil/Malvinas Confluence, resulting in a Phase II Start-Up Grant proposal to the IAI. This proposal brings together participants from member countries of the Inter-American Institute for Global Change Research (IAI), a U.S. initiative to stimulate cooperative research on global change issues among the scientific institutions of the Americas. The NSF is the lead U.S. Government agency designated to carry out U.S. responsibilities within the IAI. %%% This workshop will bring together scientists from Argentina, Brazil, Mexico, Uruguay, and the United States to elaborate a research project to investigate the Brazil/Malvinas Confluence, an ocean current that runs along the continental slopes of Brazil, Uruguay, and Argentina. This current one of the most energetic in the world, and strongly influences the fisheries and agricultural development of one of the most economically important areas of Latin America. The Brazil/Malvinas Confluence has a strong influence on the turnover of the world's ocean water and therefore on global climate change. The Brazil/Malvinas Confluence is also one of the least studied currents in the world, in an area of the Atlantic that remains poorly understood by the oceanographic community. The four countries involved in the project bring together some of the most important research groups and computer modeling facilities in the Americas to tackle this problem, and will propose a research project to the Inter-American Institute for Global Change Research (IAI), a U.S. initiative to stimulate cooperative research on global change issues among the scientific institutions of the Americas. The National Science Foundation is the lead U.S. Government agency designated to carry out U.S. responsibilities within the IAI. *** --========================_15507136==_--