Collaborative Research: Historic Perspectives on Climate and Biogeography from Deep-sea Corals in the Drake Passage

合作研究：德雷克海峡深海珊瑚气候和生物地理学的历史视角

• 批准号: 0944474
• 负责人: Laura Robinson
• 金额: $ 14.72万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0944474&HistoricalAwards=false
• 关键词: Collaborative; Research; Historic; Perspectives; Climate

Polar oceans are the main sites of deep-water formation and are critical to the exchange of heat and carbon between the deep ocean and the atmosphere. This award ?Historic perspectives on climate and biogeography from deep-sea corals in the Drake Passage? will address the following specific research questions: What was the radiocarbon content of the Southern Ocean during the last glacial maximum and during past rapid climate change events? and What are the major controls on the past and present distribution of cold-water corals within the Drake Passage and adjacent continental shelves? Testing these overall questions will allow the researchers to better understand how processes in the Southern Ocean are linked to climate change over millennia. This award is being funded by the Antarctic Earth Sciences Program of NSF?s Office of Polar Programs, Antarctic Division. INTELLECTUAL MERIT: The skeletons of deep-sea corals are abundant in the Southern Ocean, and can be dated using U-series techniques making them a useful archive of oceanographic history. By pairing U-series and radiocarbon analyses the awardees can reconstruct the radiocarbon content of seawater in the past, allowing them to address the research questions raised above. Collection of living deep-sea corals along with environmental data will allow them to address the broader biogeography questions posed above as well. The awardees are uniquely qualified to answer these questions in their respective labs via cutting edge technologies, and they have shown promising results from a preliminary pilot cruise to the area in 2008.BROADER IMPACTS: Societal Relevance: The proposed paleoclimate research will make significant advances toward constraining the Southern Ocean?s influence on global climate, specifically it should help set the bounds for the upper limits on how fast the ocean circulation might change in this region of the world, which is of high societal relevance in this era of changing climate. Education and Outreach (E/O): These activities are grouped into four categories: i) increasing student participation in polar research by fully integrating undergraduate through post-doctoral students into research programs; ii) promotion of K-12 teaching and learning programs by providing information via a cruise website and in-school talks, iii) making the data collected available to the wider research community via data archives such as Seamounts Online and the Seamount Biogeographic Network and iv) reaching a larger public audience through such venues as interviews in the popular media.

极地海洋是深水形成的主要地点，对于深海和大气之间的热量和碳的交换至关重要。这个奖项是Drake通道中深海珊瑚的气候和生物地理学的历史观点？将解决以下具体研究问题：在最后一次冰川最大和过去的快速气候变化事件中，南大洋的放射性碳含量是什么？关于德雷克通道和邻近大陆架子中冷水珊瑚的过去和现在分布的主要控制和现在？测试这些总体问题将使研究人员能够更好地了解南大洋的过程如何与数千年的气候变化联系在一起。 该奖项由NSF的南极计划办公室南极司的南极地球科学计划资助。知识分子的优点：深海珊瑚的骨骼在南大洋中很丰富，并且可以使用U系列技术来约会，从而使其成为海洋学历史的有用档案。 通过配对U系列和放射性分析，获奖者可以重建过去海水的放射性碳含量，从而使他们能够解决上面提出的研究问题。 生命深海珊瑚以及环境数据的收集将使他们能够解决上面提出的更广泛的生物地理问题。 获奖者有资格通过最先进的技术在各自的实验室中回答这些问题，他们在2008年向该地区的初步飞行员巡游中表现出了令人鼓舞的结果。公民的影响：社会相关性：拟议的古气候研究将使南方人对全球气候的影响更大，这可能会使海洋的影响范围限制，这可能会使海洋的影响很大，因为它可以使海洋的范围变化。在这个变化的气候时代，世界具有很高的社会意义。教育与外展（E/O）：这些活动分为四类：i）通过通过博士后学生将本科生完全整合到研究计划中，从而增加学生参与极地研究； ii）通过通过邮轮网站和学校内谈话提供信息，促进K-12教学课程，iii）通过在线seamounts和seamount Biogeographic网络和iv的Seamount Bioegemographic Network和iv）中收集的数据可用于更广泛的研究社区，并通过在流行媒体的访谈中吸引更大的公众受众。