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Glacial-Interglacial Changes in the Intermediate Depth Circulation of the Subpolar North Atlantic

Glacial-Interglacial Changes in the Intermediate Depth Circulation of the Subpolar North Atlantic
副极地北大西洋中深度环流的冰期-间冰期变化
批准号:
9116259
负责人:
Scott Lehman
金额:
$35.47万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1992
资助国家:
美国
项目状态:
已结题
起止时间:
1992-01-01 至 1995-12-31

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中文摘要
翻译
这项研究将试图确定营养素的来源- 北大西洋中层水(GNAIW) 末次盛冰期(LGM)和副极地北部的变化 几个气候周期的大西洋垂直营养梯度。 Rockfall Plateau/Hatton末次冰期的营养盐-深度剖面 漂洋过海与埃里克海岭源附近形成中间层 建造深水沃茨。 碳同位素比值 底栖有孔虫和Cd/Ca比值将提供线索, GNAIW的起源
英文摘要
This study will attempt to determine the origin of nutrient- depleted glacial North Atlantic Intermediate Water (GNAIW) during the last glacial maximum (LGM) and changes in the subpolar north Atlantic vertical nutrient gradient over several climatic cycles. A nutrient vs depth profile for LGM on Rockfall Plateau/Hatton Drift and Erik Ridge near the source of formation of intermediate and deep waters will be constructed. Carbon-isotopic ratios in benthic foraminifera and Cd/Ca ratios will provide clues to the origin of GNAIW.
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Collaborative Research: Quantifying the Ocean's Responses to Solar Forcing: Multidecadel Century-scale Variability of North Atlantic SSTs Over Recent Millenia
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    1103508
  • 项目类别:
    Standard Grant
  • 资助金额:
    $24.38万
  • 财政年份:
    2011
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  • 依托单位:
Tracing the Radiocarbon Signal of the Ocean's CO2 Release During the Last Deglaciation
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    0851391
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    Standard Grant
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    2009
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    0117194
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    Standard Grant
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    $18.03万
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    2001
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Collaborative Research: A Benchmark Record of Temperature for the Last Four Glacial Cycles in Sediments of the Bermuda Rise
  • 批准号:
    0081257
  • 项目类别:
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  • 资助金额:
    $53.97万
  • 财政年份:
    2000
  • 负责人:
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