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Structure and dynamics of the Earth's inner core boundary-The origin of hemispherical structure-

Structure and dynamics of the Earth's inner core boundary-The origin of hemispherical structure-
地球内核边界的结构和动力学-半球结构的起源-
批准号:
21340132
负责人:
TANAKA Satoru
金额:
$11.65万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2012

项目摘要

项目成果

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中文摘要
翻译
内核的半球差至少达到内核边界以下400km。地震波穿过东半球的衰减可以用内核最上层200公里内的速度扰动来解释。东半球内核边界反射波显示2Hz分量大于1Hz分量。内核表面形貌的稳定性取决于内核的生长速度。扩散率影响内核边界附近外核流动的动能和磁能(在某些情况下)。
英文摘要
Hemispherical difference of the inner core reaches at least 400km below the inner core boundary. Attenuation of seismic wave passing through the Eastern hemisphere can be explained by velocity perturbation within the uppermost 200km of the inner core. The reflected waves at the inner core boundary in the Eastern hemisphere show that 2Hz components are larger than those of 1Hz. The stability of morphology at the inner core surface depends on the growth rate of the inner core. Diffusivity affects kinetic and magnetic (in some case) energies of the outer core flow near the inner core boundary.
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DOI: 10.1016/j.pepi.2012.08.001
发表时间: 2012-11
期刊: Physics of the Earth and Planetary Interiors
影响因子: 2.3
作者: [S. Tanaka]
通讯作者: S. Tanaka
Depth variation of inner core hemisphericity from PKP (DF) and PKP (Cdiff) : P-wave velocity and attenuation structures for equatorial paths
PKP (DF) 和 PKP (Cdiff) 内核半球深度变化:赤道路径的 P 波速度和衰减结构
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [A.Shatskiy, T.Katsura, K.D.Litasov, A.V.Shcherbakova, Y.M.Borzdov, D.Yamazaki, A.Yoneda, E.Ohtani, E.Ito, 山口実華・橋本善孝, S.Tanaka]
通讯作者: S.Tanaka
Array analysis of PKP(BC)phase with station corrections for travel times and amplitudes
对 PKP(BC) 相位进行阵列分析,并对走时和振幅进行台站校正
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者: [伊藤正寛, 馬場昭典, 李振風, 小松崎民樹, Masayuki Obayashi, S.Tanaka]
通讯作者: S.Tanaka
Hinetで観測されたPKiKP/PcP振幅比の周波数依存性
使用 Hinet 观察到的 PKiKP/PcP 振幅比的频率依赖性
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者: [Tanaka, S. and Tkalcic, H]
通讯作者: H
共 14 条
    Transformation of Contemporary South Korean Funerary Culture from the 1990s and on
    • 批准号:
      25370071
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $3.08万
    • 财政年份:
      2013
    • 负责人:
      TANAKA Satoru
    • 依托单位:
    Heteroepitaxy of III-nitride thin films with ultra low defect density
    • 批准号:
      23656020
    • 项目类别:
      Grant-in-Aid for Challenging Exploratory Research
    • 资助金额:
      $2.5万
    • 财政年份:
      2011
    • 负责人:
      TANAKA Satoru
    • 依托单位:
    Multi-scale/multi-physics modeling of long-term evolution of material properties in solid breeding materials
    • 批准号:
      23246161
    • 项目类别:
      Grant-in-Aid for Scientific Research (A)
    • 资助金额:
      $30.37万
    • 财政年份:
      2011
    • 负责人:
      TANAKA Satoru
    • 依托单位:
    Fabrication of graphene nanostructures and correlation to electronic properties
    • 批准号:
      23246014
    • 项目类别:
      Grant-in-Aid for Scientific Research (A)
    • 资助金额:
      $31.95万
    • 财政年份:
      2011
    • 负责人:
      TANAKA Satoru
    • 依托单位:
    海外基金