Comparative study of resistivity inversion at hamam faraun area, Egypt

G. El-Quady, H. Mizunaga, K. Ushijima

研究成果: Contribution to journalArticle査読

抄録

DC resistivity method is commonly used for acquiring subsurface resistivity data in environmental and engineering investigations. However, its interpretation is hampered by a variety of factors of which the non-linear nature of the process and bias effects on the data; mainly due to the noise; are the most problem, which limit the model resolution to a large extent. The ability to invert resistivity data successfully depends on many factors such as the uniqueness of the model as well as the robustness of the inversion algorithm. Hereafter we are investigating this problem using three different 1-Diversion algorithms. The three algorithms have been applied to a numerical model of 4 layers to determine the optimum solution produced by each of them. A random noise of 5, 10 and 20 percents has been added to the model in a forward step to determine the most stable, robustness algorithm. Those algorithms have been applied to the field data set measured at Hamam Faraum hot spring area, Egypt, aiming to make a refinement to the previous 1-D inversion done before for the same data set (E1-Qady et. al, 1998). We could conclude that the algorithm of Meju, (1992), is the most effective one in this study. The resulted 1-D geoelectrical cross section could elucidate the subsurface structure and explain the origin of the hot water in the area.

本文言語英語
ページ(範囲)117-128
ページ数12
ジャーナルMemoirs of the Graduate School of Engineering, Kyushu University
60
3
出版ステータス出版済み - 12 1 2000
外部発表はい

All Science Journal Classification (ASJC) codes

  • エネルギー(全般)
  • プロセス化学およびプロセス工学
  • 大気科学
  • 技術マネージメントおよび技術革新管理
  • 地球惑星科学(全般)

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