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首页> 美国政府科技报告 >Waveform Modeling of the Crust and Upper Mantle Using S, Sp, SsPmP, and Shear-Coupled PL Waves for Improved Event Location, Focal Depth Determination, and Uncertainty Estimation
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Waveform Modeling of the Crust and Upper Mantle Using S, Sp, SsPmP, and Shear-Coupled PL Waves for Improved Event Location, Focal Depth Determination, and Uncertainty Estimation

机译：使用s，sp，sspmp和剪切耦合pL波对地壳和上地幔进行波形建模，以改善事件定位，焦深确定和不确定性估计

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During this contract's performance period, we intend to complete the development of a method for determining crust and upper mantle structure in seismic regions and evaluate its capacity to produce sufficiently accurate models for locating hypocenter of small-to moderate seismic events. Specifically, we will: 1) complete development of a waveform modeling approach to determine the structure of the crust and upper mantle in a broad region surrounding a broadband seismographic station; 2) validate the method through careful comparison between models produced with our method and models produced by higher resolution active-source experiments, as well as models produced by surface wave inversion and receiver function methods; 3) apply and validate methods for computing uncertainty statistics from the products of global optimization searches; 4) refine, apply, and evaluate waveform correlation methods to ground-truth data from regional events and explosions with well- constrained focal depths, using crust/upper mantle models produced with our method; 5) apply the modeling method to teleseismic data recorded at stations in China, Africa, and the Middle East; 6) apply and evaluate waveform correlation methods to determine focal depths for small- and moderate- magnitude regional events recorded at stations in China, Africa, and the Middle East using crust/upper mantle models determined in this study.

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