Collaborative Research: Centennial Scale Records of the Atlantic Multi-decadal Oscillation

合作研究：大西洋数十年振荡的百年尺度记录

• 批准号: 0823636
• 负责人: Peter Swart
• 金额: $ 37.11万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0823636&HistoricalAwards=false
• 关键词: Collaborative; Research; Centennial; Scale; Records

Swart/Thorrold 0823636/0823268This award will provide funds to obtain new proxy records of the Atlantic Multidecadal Oscillation (AMO) over time periods between 100 to 1000 years using sclerosponge aragonite geochemistry (18O/16O and Sr/Ca), and to investigate possible artifacts in stable oxygen and carbon (13C/12C) isotope data due to alteration during the sampling of aragonitic skeletal material. Specific objectives include 1) the generation of sclerosponge geochemical data, combined with improved dating, to confirm a correlative link between salinity and AMO at multiple locations in the Bahamas and Caribbean both prior to and after the instrumental record (~1850), 2) improvement of the geochemical calibrations between temperature and Sr/Ca and d18O based on a new collection of ~ 24 sclerosponge specimens collected between 1986 and 1996 and 3) investigation of additional minor and trace elements as recorders of environmental conditions in the tropical subsurface environment. The Broader Impacts include the societal relevance of research directed at understanding a fundamental question of the climate system that could have a synergistic impact on human-contributed forcings of the climate system and support of research by undergraduate and graduate students.

Swart/Thorrold 0823636/0823268此奖项将提供资金，以获取100至1000年之间大西洋多年振荡（AMO）的新代理记录，使用Sclerosponge Aragonite Aragonite地球化学（18o/16o和Sr/Ca）（18o/16o and Sr/ca），以调查iSotifs/cardif cartif cartifable/cardifable/cardifable/cardifable/cardifable（13c）（13c）（13c）（13c）（13c）在对后骨骨骼材料采样期间的改变。具体目标包括1）在巴哈马和辅助记录（约1850年）之前和之后，在巴哈马和加勒比海中多个位置的盐度与AMO之间的相关连接，以确认盐度与AMO之间的相关性联系（2）以及1996和3）研究其他小元素和痕量元素作为在热带地下环境中环境条件的记录。 更广泛的影响包括旨在理解气候系统的基本问题的研究的社会相关性，该问题可能会对气候系统的强迫人进行协同影响以及本科生和研究生对研究的支持。