AGU Chapman Conference on the Agulhas System and its Role in Changing Ocean Circulation, Climate, and Marine Ecosystems

AGU 查普曼关于厄加勒斯系统及其在改变海洋环流、气候和海洋生态系统中的作用的会议

• 批准号: 1252690
• 负责人: Brenda Weaver
• 金额: $ 2.12万
• 依托单位: American Geophysical Union
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1252690&HistoricalAwards=false
• 关键词: AGU; Chapman; Conference; Agulhas; System

This award will provide partial support for a Chapman Conference on the Agulhas system that will be held 8-12 October 2012 in Western Cape, South Africa. Chapman Conferences are topic meetings sponsored by the American Geophysical Union and are designed to promote opportunities to discuss scientific issues that are not normally available at larger meetings. Attendance at the October conference is expected to be on the order of 125 participants to include senior scientists, midcareer scientists, postdoctoral researchers, and students.The Agulhas System plays a significant role in the global ocean circulation and climate.Warm, saline waters from the Indian Ocean flow into the Atlantic as part of the interoceanexchange around the southern tip of Africa. Ongoing increases in this so-called AgulhasLeakage, presently under anthropogenic forcing, could strengthen the global overturningcirculation in the Atlantic at a time when warming and accelerated meltwater input in the NorthAtlantic are predicted to weaken it. However compared to processes in the North Atlantic, theAgulhas system has been largely ignored as a potential trigger or stabilizer of climate variability.At regional scales the Agulhas influences extreme weather events while interannualrainfall variations in southern Africa are correlated with warm and cold anomalies in the Agulhassystem, associated with the Indian Ocean climate modes. Large Marine Ecosystems in the regionand the distribution of large pelagic species and their fisheries are also influenced by variationsin the physical Agulhas system in an as yet poorly known manner.The purpose of this Chapman Conference is to identify the most pressing questions and to designmodeling experiments in combination with paleoceanographic and (sustained) modernobservations to establish the role of the Agulhas system from regional to global scales.

该奖项将为将于2012年10月8日至12日在南非西开普省举行的关于厄古拉斯系统的查普曼会议提供部分支持。查普曼会议是由美国地球物理联合会主办的主题会议，旨在促进讨论通常在大型会议上无法获得的科学问题的机会。 10月会议的出席者预计将达到125人，其中包括高级科学家，职业中期科学家，博士后研究人员和学生。厄古拉斯系在全球海洋环流和气候中起着重要作用。温暖的盐水沃茨从印度洋流入大西洋，作为非洲南端周围的洋际交换的一部分。目前在人为强迫下，这种所谓的Agulhas泄漏的持续增加可能会加强大西洋的全球翻转环流，而北大西洋的变暖和加速融水输入预计会削弱它。然而，与北大西洋的过程相比，厄古拉斯系统作为气候变率的潜在触发器或稳定器在很大程度上被忽视。在区域尺度上，厄古拉斯系统影响极端非洲南部的年际降雨量变化与Agulhas系统的冷暖异常有关，而Agulhas系统与印度洋气候模式有关。该地区的大型海洋生态系统和大型远洋物种及其渔业的分布也受到物理上的Agulhas系统的变化的影响，但这种变化的方式知之甚少。这次查普曼会议的目的是确定最紧迫的问题，并结合古海洋学和（持续的）现代观测来设计模拟实验，以建立从区域到全球尺度的Agulhas系统的作用。