GLOBAL MANTLE TOMOGRAPHY: Progress Status
GLOBAL MANTLE TOMOGRAPHY: Progress Status
复制标题
全球地幔断层扫描：进展状况
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
B. Romanowicz
中科院分区：
文献类型：
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作者：
B. Romanowicz
本文回顾了全球地幔层析成像的现状，讨论了过去10年发展起来的两类主要模型：基于国际地震中心公报走时大数据集的P速度模型，通常称为“高分辨率”模型，以及基于面波和手工挑选的体波走时或波形的组合的S速度模型，称为“长波”模型。我们讨论了它们各自的优势和劣势，以及使用层析成像方法在解决其他物理参数，如各向异性、滞弹性、密度和体积声速方面的进展。我们认为，未来全球地震层析成像的改进需要利用完整的宽带地震波形中包含的丰富信息。由于理论上的进步以及近年来计算能力的增加，目前我们可以做到这一点。
■ Abstract We review the present status of global mantle tomography and discuss two main classes of models that have been developed in the past 10 years: P velocity models based on large datasets of travel times from the International Seismological Centre bulletins, often referred to as “high resolution” models, and S velocity models based on a combination of surface wave and hand picked body wave travel times, or waveforms, referred to as “long wavelength” models. We discuss their respective strengths and weaknesses, as well as progress in the resolution of other physical parameters, such as anisotropy, anelasticity, density, and bulk sound velocity using tomographic approaches. We present the view that future improvements in global seismic tomography require the utilization of the rich information contained in complete broadband seismic waveforms. This is presently within our reach owing to theoretical progress as well as the increase in computational power in recent years.
影响因子：
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作者：
K. Aki;A. Christoffersson;E. Husebye
通讯作者：
K. Aki;A. Christoffersson;E. Husebye