物探化探计算技术2024，Vol.46Issue(2)：197-205,9.DOI:10.3969/j.issn.1001-1749.2024.02.09
起伏地形的2.5维主轴各向异性海洋CSEM反演研究
Research on 2.5-dimensional axially anisotropy marine CSEM inversion of undulating topography
覃金生1
作者信息
- 1. 东华理工大学地球物理与测控技术学院,南昌 330013
- 折叠
摘要
Abstract
An MPI parallel 2.5-dimensional marine CSEM inversion algorithm was implemented using the OCCAM meth-od.The forward modeling adopts a finite element method based on unstructured grids,which accurately simulates the seabed's undulating topography and structural model while meshing the core and extended regions at different scales to reduce inversion parameters.The examples of horizontal and undulating seabed models indicate that the recovery effect of the vertical anisotrop-ic model is better than that of the horizontal anisotropic model using 2.5-dimensional profile data emitted along the survey line.The trial results of complex seabed topography models indicate that the presence of sedimentary layers with topography can sig-nificantly impact the inversion results,which should be taken seriously in actual data interpretation.关键词
海洋可控源电磁/起伏地形/反演/各向异性Key words
marine controlled source electromagnetic/undulating topography/inversion/anisotropy分类
地质学引用本文复制引用
覃金生..起伏地形的2.5维主轴各向异性海洋CSEM反演研究[J].物探化探计算技术,2024,46(2):197-205,9.
