三维起伏地形下回折波快速走时层析及其静校正应用

杨华臣, 葛大明, 王忠成, 王磊, 袁永祺

Fast first-arrival traveltime tomography of diving waves under rugged surface and its application to static correction

YANG Hua-Chen, GE Da-Ming, WANG Zhong-Cheng, WANG Lei, YUAN Yong-Qi

图2 速度模型 a—理论速度模型;c—基于水平地表假设的初至走时层析反演模型;e—菲涅尔体初至走时层析反演模型;g—本文方法反演模型;b、d、f、h—左侧三维模型在y=1 km处的速度切片

Fig.2 Velocity models a—the theoretical velocity model;c—models constructed by the first-arrival traveltime inversion based on horizontal observation surface;e—Fresnel first-arrival traveltime tomography model;g—model invesed by the proposed method;b、d、f、h—the velocity slices at y=1 km corresponding to the 3D velocity models shown at the left column