Paleobathymetry of the Southern Ocean and its role in paleoclimate variations

南大洋的古水深测量及其在古气候变化中的作用

基本信息

  • 批准号:
    279559463
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    德国
  • 项目类别:
    Infrastructure Priority Programmes
  • 财政年份:
    2015
  • 资助国家:
    德国
  • 起止时间:
    2014-12-31 至 2018-12-31
  • 项目状态:
    已结题

项目摘要

The Southern Ocean hosts the worldwide largest and most dynamic ocean circulation system affecting global climate variations in a major extent. Understanding past Southern Ocean circulation processes help decipher present observations of changing oceanic parameters and help improve predictions of climate variations. By developing a unified Southern Ocean digital stratigraphy from the conjugate continental shelves to the abyssal plains, this project is aimed to generate series of paleobathymetric grids of times that are critical for understanding paleo-ocean circulation and climatic changes at long time-scales. A selection of suitable DSDP, ODP and IODP drill sites as well as the large network of existing seismic lines will serve as the key datasets for stratigraphic constraints. The Southern Ocean paleobathymetric grids, in which newest plate-kinematic models, lithospheric subsidence parameters and models of dynamic mantle topography are incorporated, will be used to simulate paleoceanographic and paleoclimate scenarios with particular emphasis on the opening of Southern Ocean gateways, the development of topographies along spreading ridges, fracture zones and oceanic plateaus as well as the water mass generation and ocean current dynamics along the continental shelves, slopes and rises. The ultimate aim of the project is to generate Cenozoic climate reconstructions using a variety of Earth system models designed to evaluate the effect of ocean gateways and basins on paleo-circulation patterns, the global carbon cycle and nature of polar ice sheet development. These experiments will include sensitivity runs incorporating the new paleobathymetric and paleotopographic reconstructions. The results from these experiments are compared with other model simulations, which include different forcing factors such as atmospheric greenhouse gasses and mountain uplift to determine the relative importance of paleo-geography on the evolution of global climates over long geological timescales.
南大洋拥有世界上最大和最活跃的海洋环流系统,在很大程度上影响着全球气候变化。了解过去的南大洋环流过程有助于解释目前对海洋参数变化的观测,并有助于改善对气候变化的预测。通过开发从共轭大陆架到深海平原的统一的南大洋数字地层学,该项目旨在生成一系列古水深时间网格,这些网格对于了解长时间尺度的古海洋环流和气候变化至关重要。选择合适的DSDP、ODP和IODP钻探地点以及现有地震测线的大型网络将作为地层约束的关键数据集。南大洋古等深线格网中纳入了最新的板块运动学模型、岩石圈沉降参数和动态地幔地形模型,将用于模拟古海洋学和古气候情景,特别强调南大洋门户的打开、地形沿着扩张脊的发展、断裂带和海洋高原以及沿着大陆架、斜坡和隆起的水团生成和洋流动态。该项目的最终目的是利用各种地球系统模型重建新生代气候,以评估海洋门户和盆地对古环流模式、全球碳循环和极地冰盖发展性质的影响。这些实验将包括灵敏度运行纳入新的古水深和古地形重建。这些实验的结果与其他模型模拟进行了比较,其中包括不同的强迫因素,如大气温室气体和山脉隆起,以确定古地理对长期地质时间尺度上全球气候演变的相对重要性。

项目成果

期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
GlobSed: Updated Total Sediment Thickness in the World's Oceans
  • DOI:
    10.1029/2018gc008115
  • 发表时间:
    2019-04-01
  • 期刊:
  • 影响因子:
    3.5
  • 作者:
    Straume, E. O.;Gaina, C.;Hopper, J. R.
  • 通讯作者:
    Hopper, J. R.
Late Holocene palaeo-environmental reconstruction and human settlement in the eastern Po Plain (northern Italy)
  • DOI:
    10.1016/j.catena.2019.01.025
  • 发表时间:
    2019-05
  • 期刊:
  • 影响因子:
    6.2
  • 作者:
    G. Bianchini;S. Cremonini;D. Giuseppe;R. Gabusi;M. Marchesini;G. Vianello;L. V. Antisari
  • 通讯作者:
    G. Bianchini;S. Cremonini;D. Giuseppe;R. Gabusi;M. Marchesini;G. Vianello;L. V. Antisari
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Professor Dr. Karsten Gohl其他文献

Professor Dr. Karsten Gohl的其他文献

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{{ truncateString('Professor Dr. Karsten Gohl', 18)}}的其他基金

West Antarctic Ice Sheet dynamics between Ross Sea and Amundsen Sea embayments from seismic records and drill data (IODP Expeditions 379 and 374)
来自地震记录和钻探数据的罗斯海和阿蒙森海海湾之间的西南极冰盖动态(IODP 探险 379 和 374)
  • 批准号:
    427200564
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Interrelations of tectonic deformation and surface erosion with West Antarctic Ice Sheet dynamics
构造变形和地表侵蚀与西南极冰盖动力学的相互关系
  • 批准号:
    258133812
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Coupling of lithosphere dynamics, surface processes and ice sheet evolution - constraints from Marie Byrd Land, West Antarctica
岩石圈动力学、表面过程和冰盖演化的耦合——来自南极洲西部玛丽伯德地的约束
  • 批准号:
    131153897
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Circum-Antarctic Stratigraphy and Paleobathymetry: Development of Grid-based Simulations
环南极地层学和古水深测量:基于网格的模拟的发展
  • 批准号:
    44931058
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Sensitivity of Quaternary West Antarctic Ice Sheet advances and retreats in Pine Island Bay
松岛湾第四纪西南极冰盖进退的敏感性
  • 批准号:
    44661160
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Reconstruction of glacial-marine sedimentation in the Amundsen Sea
阿蒙森海冰川海洋沉积的重建
  • 批准号:
    5326108
  • 财政年份:
    2001
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Plate dynamics of the Southeast Pacific.
东南太平洋板块动态。
  • 批准号:
    5296144
  • 财政年份:
    2000
  • 资助金额:
    --
  • 项目类别:
    Research Grants
East Antarctic Ice Sheet sensitivity under vulnerable conditions studied by combination of focused geophysical techniques
通过结合聚焦地球物理技术研究脆弱条件下东南部冰盖的敏感性
  • 批准号:
    522416134
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes

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Collaborative Research: Investigating Southern Ocean Sea Surface Temperatures and Freshening during the Late Pliocene and Pleistocene along the Antarctic Margin
合作研究:调查上新世晚期和更新世沿南极边缘的南大洋海面温度和新鲜度
  • 批准号:
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  • 财政年份:
    2024
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Postdoctoral Fellowship: OPP-PRF: Understanding the Role of Specific Iron-binding Organic Ligands in Governing Iron Biogeochemistry in the Southern Ocean
博士后奖学金:OPP-PRF:了解特定铁结合有机配体在控制南大洋铁生物地球化学中的作用
  • 批准号:
    2317664
  • 财政年份:
    2024
  • 资助金额:
    --
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Postdoctoral Fellowship: OPP-PRF: Deciphering the Role of Phytoplankton Community Composition in Southern Ocean Carbon Fluxes
博士后奖学金:OPP-PRF:破译浮游植物群落组成在南大洋碳通量中的作用
  • 批准号:
    2317998
  • 财政年份:
    2024
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Collaborative Research: Investigating Southern Ocean Sea Surface Temperatures and Freshening during the Late Pliocene and Pleistocene along the Antarctic Margin
合作研究:调查上新世晚期和更新世沿南极边缘的南大洋海面温度和新鲜度
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KRILLGUARD: Safeguarding the future of the Southern Ocean
KRILLGUARD:保卫南大洋的未来
  • 批准号:
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  • 财政年份:
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CAREER: Investigating Fitness Trade-offs In A Southern Ocean Predator, The Leopard Seal
职业:研究南大洋掠食者豹海豹的健康权衡
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Southern Ocean aerosols: sources, sinks and impact on cloud properties
南大洋气溶胶:来源、汇以及对云特性的影响
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    DP240100389
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    2024
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    --
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    Discovery Projects
Collaborative Research: Conference: Priorities for Future US-led Physical Oceanography Fieldwork in the Sub-polar Southern Ocean
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Collaborative Research: Conference: Priorities for Future US-led Physical Oceanography Fieldwork in the Sub-polar Southern Ocean
合作研究:会议:未来美国主导的副极地南大洋物理海洋学实地考察的优先事项
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