P波速度对接收函数H-k搜索叠加结果的影响分析 |
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引用本文: | 李翠芹,沈旭章,秦满忠.P波速度对接收函数H-k搜索叠加结果的影响分析[J].地震学报,2014,36(3):480-490. |
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作者姓名: | 李翠芹 沈旭章 秦满忠 |
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作者单位: | 1.中国兰州 730000 中国地震局兰州地震研究所 |
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基金项目: | 中国地震局地震预测研究所基本科研业务专项(2011IESLZ05);国家自然科学基金(41274093,40904014)共同资助 |
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摘 要: | 从公式推导、 不同模型数值试验和实际资料处理等3个方面, 系统研究了P波速度vPP对接收函数H(地壳厚度)-k(波速比)叠加搜索结果的影响. 结果表明, vPP的变化与H正相关, 与k负相关; 且地壳模型越复杂, vPP对H的影响越大.
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关 键 词: | P波速度 H-k搜索叠加 接收函数 |
收稿时间: | 2013-05-03 |
The effect of P wave velocity on the H-k stacking results of receiver functions |
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Affiliation: | 1.Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China2.Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 730000, China |
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Abstract: | This paper systematically investigates the effect of P wave velocity on the H-k stacking results of receiver functions by three aspects of theoretical analyses, numerical tests and observed data processing. The results show that the P wave velocity is positively correlated with crustal depth H, and negatively correlated with wave velocity ratio k. Moreover, the more complex the crust model is, the larger effect P wave velocity has on H. |
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