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SGER: Exploration of Nitrite Isotopes and their Link to Nitrogen Biogeochemistry in the Arabian Sea Oxygen Minimum Zone

SGER: Exploration of Nitrite Isotopes and their Link to Nitrogen Biogeochemistry in the Arabian Sea Oxygen Minimum Zone
SGER:亚硝酸盐同位素探索及其与阿拉伯海最低氧区氮生物地球化学的联系
批准号:
0748674
负责人:
Karen Casciotti
金额:
$5.2万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2007
资助国家:
美国
项目状态:
已结题
起止时间:
2007-09-15 至 2008-08-31

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英文摘要
ABSTRACTOCE-0748674A scientist from Woods Hole Oceanographic Institution proposes to take advantage of a cruise to the Arabian Sea oxygen deficient zone to collect and analyze a unique suite of samples for nitrite del15N and del18O, as well as collect and preserve samples for nitrate del15N and del18O. The nitrite isotopic data, a first of its kind, would provide new insights into the sources and sinks of nitrogen within this low oxygen environment. The nitrite and nitrate dual isotope data would be used to determine the role of N2 fixation in supporting the production of excess N2 in this region.
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Collaborative Research: Opening the black box of oxygen deficient zone biogeochemistry through integrative tracers
  • 批准号:
    2342987
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $64.83万
  • 财政年份:
    2024
  • 负责人:
    Karen Casciotti
  • 依托单位:
Collaborative Research: Quantifying nitrous oxide sources across an oxygen gradient in the northern Benguela upwelling system
  • 批准号:
    2113937
  • 项目类别:
    Standard Grant
  • 资助金额:
    $77.62万
  • 财政年份:
    2021
  • 负责人:
    Karen Casciotti
  • 依托单位:
Collaborative Research: US GEOTRACES GP17-OCE: Mapping nitrous oxide sources and sinks through isotopic measurements in the Pacific Ocean
  • 批准号:
    2048961
  • 项目类别:
    Standard Grant
  • 资助金额:
    $40.96万
  • 财政年份:
    2021
  • 负责人:
    Karen Casciotti
  • 依托单位:
Collaborative Research: US GEOTRACES PMT: Investigating geochemical tracers of the Pacific nitrogen cycle and budget
  • 批准号:
    1736756
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $42.07万
  • 财政年份:
    2018
  • 负责人:
    Karen Casciotti
  • 依托单位:
海外基金