Holocene Marine Climate Evolution and Variability from Multi-Proxy Analyses of High Resolution Shelf Cores in the Northern North Atlantic (West of 20W)

北大西洋北部(20W 以西)高分辨率陆架核心多代理分析的全新世海洋气候演化和变异

基本信息

  • 批准号:
    0317832
  • 负责人:
  • 金额:
    $ 40.34万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2003
  • 资助国家:
    美国
  • 起止时间:
    2003-07-15 至 2007-06-30
  • 项目状态:
    已结题

项目摘要

This award will enable researchers to use a multi-proxy approach to evaluate environmental variability from sites capturing the dynamics between the Arctic and Atlantic environment. The goal of the research is to determine the range, trends, and nature of climate variability in the region during the Holocene. The broad geographic extent of the research strategy is designed to allow evaluation of the influences and complexities of different components of the climate system. Holocene paleoclimate records of centennial temporal resolution will be produced from four long sediment cores recovered in 1999 in contrasting hydrographic settings. The sites include cores from the Labrador Shelf, the Southwest Iceland margin, the North Iceland shelf, and the East Greenland shelf. The sites were exposed to ice-sheet/ocean interactions during the final deglaciation phases of the Laurentide, Greenland, and Iceland ice sheets.Such research would help provide an improved understanding of the dramatic environmental changes being observed in the Arctic today (i.e., marked retreat and thinning of the sea-ice cover and melting and thinning of the Greenland Ice Sheet, increased discharge of the Russian rivers). Whether these current changes are within the range of natural variability, or are unprecedented, can be evaluated by the data preserved in sediment cores and comparing them to a spectrum of cryosphere-ocean interactions in the northern North Atlantic. In summary, this research on high latitude continental margins opens a promising new archive of past climatic variability. The research has broader implications in areas of education and international research co-operation as it will provide a graduate student with a unique opportunity to actively pursue magnesium/calcium temperature calibrations for water temperatures less than 10degrees-Celsius. Successful development of this proxy would be a significant contribution to the field of paleoclimatology.
该奖项将使研究人员能够使用多代理方法来评估捕获北极和大西洋环境之间动态的站点的环境变异性。研究的目标是确定全新世期间该地区气候变化的范围、趋势和性质。研究战略的广泛地理范围旨在评估气候系统不同组成部分的影响和复杂性。 全新世古气候记录百年时间分辨率将产生四个长的沉积物芯在1999年恢复对比水文设置。这些地点包括拉布拉多大陆架、冰岛西南边缘、冰岛北部大陆架和格陵兰东部大陆架的岩心。这些地点在劳伦蒂德、格陵兰和冰岛冰盖的最后冰川消退阶段暴露于冰盖/海洋的相互作用。这样的研究将有助于更好地了解今天在北极观察到的巨大环境变化(即,海冰覆盖面明显退缩和变薄,格陵兰冰盖融化和变薄,俄罗斯河流流量增加)。这些海流变化是否在自然变化范围内,或者是前所未有的,可以通过保存在沉积物芯中的数据并将其与北大西洋北方冰冻圈-海洋相互作用的范围进行比较来评估。总之,这项高纬度大陆边缘的研究开辟了一个有前途的新档案过去的气候变化。这项研究在教育和国际研究合作领域具有更广泛的意义,因为它将为研究生提供一个独特的机会,积极追求水温低于100摄氏度的镁/钙温度校准。这一代用指标的成功开发将是对古气候学领域的重大贡献。

项目成果

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Anne Jennings其他文献

Retreat of the Boothia-Lancaster ice stream from its Last Glacial Maximum extent and its role in the origin of Baffin Bay Detrital Carbonate (BBDC) events 0, 1 and 2
布西亚 - 兰开斯特冰流从末次盛冰期范围退缩及其在巴芬湾碎屑碳酸盐(BBDC)事件0、1和2起源中的作用
  • DOI:
    10.1016/j.quascirev.2025.109353
  • 发表时间:
    2025-06-15
  • 期刊:
  • 影响因子:
    3.300
  • 作者:
    Anne Jennings;Kimberley Jenner;Alexandre Normandeau;Wendy Roth;John Andrews;Robert Kelleher;Juliette Girard;Brendan Reilly;Calvin Campbell;Robbie Bennett
  • 通讯作者:
    Robbie Bennett
Identification of Cryptococcus neoformans in a routine clinical laboratory
  • DOI:
    10.1007/bf02050740
  • 发表时间:
    1968-10-01
  • 期刊:
  • 影响因子:
    2.900
  • 作者:
    Anne Jennings;J. E. Bennett;Viola Young
  • 通讯作者:
    Viola Young

Anne Jennings的其他文献

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{{ truncateString('Anne Jennings', 18)}}的其他基金

Collaborative Research: Spatiotemporal observations of the demise of an ice sheet: Paleo perspectives from Baffin Bay, West Greenland.
合作研究:冰盖消亡的时空观察:西格陵兰巴芬湾的古视角。
  • 批准号:
    2112547
  • 财政年份:
    2022
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Continuing Grant
Timing and Paleoceanographic Impacts of the Onset of Arctic-Baffin Bay Throughflow
北极-巴芬湾穿流发生的时间和古海洋学影响
  • 批准号:
    1804504
  • 财政年份:
    2018
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
Collaborative Research: Petermann Gletscher, Greenland - Paleoceanography and Paleoclimatology
合作研究:Petermann Gletscher,格陵兰岛 - 古海洋学和古气候学
  • 批准号:
    1417784
  • 财政年份:
    2014
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
Marine Test of the Sensitivity of Ice Streams Entering Baffin Bay to Ocean Warming from LGM through Deglaciation, with an Emphasis on Central West Greenland Ice Streams
进入巴芬湾的冰流对末次盛冰期通过冰消作用导致海洋变暖的敏感性的海洋测试,重点是格陵兰岛中西部冰流
  • 批准号:
    1203492
  • 财政年份:
    2012
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
High Northern Latitude Linkages between Atlantic Water, DSOW Formation and GIS Stability during the Holocene
全新世期间北高纬度大西洋水、DSOW 形成和 GIS 稳定性之间的联系
  • 批准号:
    0823535
  • 财政年份:
    2008
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
Marine Evidence for GIS Stability and History of Jakobshavn Isbrae, West Greenland, from the LGM to Holocene
西格陵兰岛雅各布港伊斯布拉 (Jakobshavn Isbrae) 从末次盛冰期到全新世的 GIS 稳定性和历史的海洋证据
  • 批准号:
    0713755
  • 财政年份:
    2007
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
Ice-Ocean-Atmosphere Interactions Along the East Greenland Margin on Decade to Century Timescales Over the Last 14 ka
过去 14 ka 十年至世纪时间尺度上格陵兰岛东部边缘的冰-海-大气相互作用
  • 批准号:
    0082347
  • 财政年份:
    2000
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
Late Quaternary Ice Sheet Extent, Chronology, and Paleoceanography, East Greenland Margin/Denmark Strait: Implictions for the Arctic and North Alantic Oceans
晚第四纪冰盖范围、年代学和古海洋学,东格陵兰边缘/丹麦海峡:对北冰洋和北大西洋的影响
  • 批准号:
    9707161
  • 财政年份:
    1997
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
Support for a Coring Cruise to the East Greenland Continental Margin and Denmark Strait, and Preliminary Data Analysis
支持前往东格陵兰大陆边缘和丹麦海峡的取芯巡航及初步数据分析
  • 批准号:
    9615935
  • 财政年份:
    1996
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Standard Grant
The Final Stages of a Collapsing Marine Ice Sheet: Late Glacial Sediment Fluxes, Paleoceanography and Chronology: Hudson Strait and Adjoining Shelf, Canada
海洋冰盖崩塌的最后阶段:晚冰期沉积物通量、古海洋学和年代学:加拿大哈德逊海峡和毗邻陆架
  • 批准号:
    9224251
  • 财政年份:
    1993
  • 资助金额:
    $ 40.34万
  • 项目类别:
    Continuing Grant

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近海沉积物中Marine Group I古菌新类群的发现、培养及其驱动碳氮循环的机制
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