2.5-D DC Resistivity Modeling Considering Flexibility and Accuracy  

作　　者：汤井田 王飞燕 肖晓 张林成 

机构地区：[1]School of Info-physics and Geomatics Engineering, Central South University

出　　处：《Journal of Earth Science》2011年第1期124-130,共7页地球科学学刊（英文版）

基　　金：supported by the National High Technology Research and Development Program of China (863 Program) (No. 2007AA06Z134);the National Natural Science Foundation of China (No. 40874072)

摘　　要：We highlighted the flexibility of using unstructured mesh together with the local refinement by a resistivity model with complicated topography. The effect of topography is emphasized. Based on this, we calculated a specific class of layered models and found that the accuracy is not always satisfactory by utilizing the standard approach. As an improvement, we employed the layered earth as the reference model to calculate the wavenumbers. The comparison demonstrates that the accuracy is considerably improved by using this enhanced approach.We highlighted the flexibility of using unstructured mesh together with the local refinement by a resistivity model with complicated topography. The effect of topography is emphasized. Based on this, we calculated a specific class of layered models and found that the accuracy is not always satisfactory by utilizing the standard approach. As an improvement, we employed the layered earth as the reference model to calculate the wavenumbers. The comparison demonstrates that the accuracy is considerably improved by using this enhanced approach.

关 键 词：2-D topography 2.5-D DC resistivity modeling layered earth. 

分 类 号：P631.322[天文地球—地质矿产勘探]