摘要：We apply the newly proposed double absorbing boundary condition (DABC) (Hagstrom et al., 2014) to solve the boundary reflection problem in seismic finite-difference (FD) modeling. In the DABC scheme, the local high-order absorbing boundary condition is used on two parallel artificial boundaries, and thus double absorption is achieved. Using the general 2D acoustic wave propagation equations as an example, we use the DABC in seismic FD modeling, and discuss the derivation and implementation steps in detail. Compared with the perfectly matched layer (PML), the complexity decreases, and the stability and flexibility improve. A homogeneous model and the SEG salt model are selected for numerical experiments. The results show that absorption using the DABC is considerably improved relative to the Clayton-Engquist boundary condition and nearly the same as that in the PML.

关键字：Double absorbing boundary condition numerical modeling finite-difference method artificial boundary condition

ISSN号：1672-7975

卷、期、页：卷: 12 期: 1 页: 111-119

发表日期：2015-03-01

期刊分区（SCI为中科院分区）：四区

收录情况：SCIE（科学引文索引网络版）,CSCD（中国科技引文期刊）（核心）,ESI（基本科学指标数据库）

发表期刊名称：Applied Geophysics

通讯作者：刘洋

第一作者：李向阳,陈双全

论文类型：期刊论文

论文概要：刘洋,李向阳,陈双全，Application of the double absorbing boundary condition in seismic modeling，Applied Geophysics，2015，卷: 12 期: 1 页: 111-119

论文题目：Application of the double absorbing boundary condition in seismic modeling