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Seismic Velocity and Attenuation Structures of the Earth's Inner and Outer Core

Seismic Velocity and Attenuation Structures of the Earth's Inner and Outer Core
地球内外核的地震速度和衰减结构
批准号:
0207746
负责人:
Lianxing Wen
金额:
$6.28万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2002
资助国家:
美国
项目状态:
已结题
起止时间:
2002-09-01 至 2003-08-31

项目摘要

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中文摘要
翻译
PI提出了一项研究地球内核和外核的地震速度和衰减结构及其对矿物物理学和动力学的影响。将根据从全球和区域地震台网收集的PKP各分支的差走时和波形研究地震结构。将分别对“东”半球和“西”半球进行地震研究,分两步进行:1)建立地球内核和外核的两个一维地震速度和衰减模型,用于PKP相位采样赤道路径; 2)限制各向异性幅度和从可能的顶部各向同性层到内核深层各向异性的过渡。
英文摘要
WENEAR-0207746The PI proposes a study of seismic velocity and attenuation structures for both the Earth's inner and outer core and their implications for mineral physics and dynamics. The seismic structures will be studied based on the differential travel times and waveforms of various PKP branches collected from the global and regional seismic networks. Seismic studies will be performed for the "eastern" and "western" hemispheres respectively, and in two steps: 1) establish two one-dimensional seismic velocity and attenuation models of the Earth's inner and outer core for the PKP phases sampling equatorial paths; and, 2) constrain anisotropy magnitudes and transitions from a possible top isotropic layer to deep anisotropy in the inner core.
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Determining temporal change of seismic properties inside the Earth using repeated earthquakes
  • 批准号:
    1214215
  • 项目类别:
    Standard Grant
  • 资助金额:
    $27.89万
  • 财政年份:
    2012
  • 负责人:
    Lianxing Wen
  • 依托单位:
High-resolution mapping of several prominent seismic anomalies in the lower mantle
  • 批准号:
    0911319
  • 项目类别:
    Standard Grant
  • 资助金额:
    $27.61万
  • 财政年份:
    2009
  • 负责人:
    Lianxing Wen
  • 依托单位:
High-resolution Mapping of Seismic Structures in the Lower Mantle
  • 批准号:
    0609717
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $25.0万
  • 财政年份:
    2006
  • 负责人:
    Lianxing Wen
  • 依托单位:
Testing Mineralogical Models of the Mantle Transition Zone Using Seismic Data
  • 批准号:
    0439978
  • 项目类别:
    Standard Grant
  • 资助金额:
    $17.23万
  • 财政年份:
    2005
  • 负责人:
    Lianxing Wen
  • 依托单位:
海外基金