Solar forcing of ice-rafting in the North Atlantic during the Holocene?

全新世期间北大西洋冰筏漂流的太阳强迫？

• 批准号: 0961670
• 负责人: David Hollander
• 金额: $ 12万
• 依托单位: University of South Florida
• 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: 2010-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0961670&HistoricalAwards=false
• 关键词: Solar; forcing; ice; rafting; North

This research revisits records of Holocene ice rafting (IRD) events in the North Atlantic that were originally interpreted as evidence that solar irradiance was an important driver for centennial- to millennial- scale climate changes in that region (Bond et al., 2001). The research addresses several key issues that have arisen since the original publication of the IRD records by: 1) replicating the published Holocene results using the same samples and techniques, 2) generating new Holocene records from cores throughout the region of interest, and 3) comparing results with beryllium-10 and radiocarbon records, which are proxies for solar variability through time. Results bear on the important question of whether and how small variations in solar forcing can influence climate. Funding supports a postdoctoral researcher.

本研究回顾了北大西洋全新世漂流（IRD）事件的记录，这些记录最初被解释为太阳辐射是该地区百年至千年尺度气候变化的重要驱动因素的证据（Bond et al., 2001）。该研究解决了自IRD记录最初发表以来出现的几个关键问题：1)使用相同的样品和技术复制已发表的全新世结果；2)从整个感兴趣区域的岩心中生成新的全新世记录；3)将结果与代表太阳随时间变化的铍-10和放射性碳记录进行比较。这些结果涉及到一个重要的问题，即太阳强迫的微小变化是否以及如何影响气候。资助一名博士后研究员。