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A. Soueid Ahmed
Researcher at University of Savoy
Publications - 23
Citations - 568
A. Soueid Ahmed is an academic researcher from University of Savoy. The author has contributed to research in topics: Induced polarization & Hydraulic tomography. The author has an hindex of 13, co-authored 23 publications receiving 384 citations. Previous affiliations of A. Soueid Ahmed include University of Rouen & University of Caen Lower Normandy.
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Journal ArticleDOI
Complex conductivity of volcanic rocks and the geophysical mapping of alteration in volcanoes
Ahmad Ghorbani,André Revil,A. Coperey,A. Soueid Ahmed,S. Roque,Michael J. Heap,Hendra Grandis,Fátima Viveiros +7 more
TL;DR: In this article, the spectral induced polarization measurements (complex conductivity) in the frequency band 10mHz-45mkHz of 85 core samples from five volcanoes: Merapi and Papandayan in Indonesia, Furnas in Portugal, Yellowstone in the USA (26 samples), and Whakaari (White Island) in New Zealand (22 samples).
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Hydraulic conductivity field characterization from the joint inversion of hydraulic heads and self‐potential data
TL;DR: In this article, the authors proposed to add more information by adding self-potential data taken at the ground surface during pumping tests, which correspond to perturbations of the electrical field caused directly by the flow of the groundwater.
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Three‐Dimensional Electrical Conductivity and Induced Polarization Tomography of a Rock Glacier
TL;DR: In this paper, the electrical resistivity and induced polarization data were collected on an unstable Alpine rock glacier in Val Thorens (Vanoise massif, France) in addition to these field data, and also performed induced polarization measurements during freeze and thaw using a soil sample and the poorly mineralized water, both from this site.
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3D electrical conductivity tomography of volcanoes
A. Soueid Ahmed,A. Soueid Ahmed,André Revil,André Revil,S. Byrdina,S. Byrdina,A. Coperey,A. Coperey,Lydie-Sarah Gailler,Niels Grobbe,Fátima Viveiros,Catarina Silva,Damien Jougnot,Ahmad Ghorbani,Colin Hogg,Duygu Kiyan,Volker Rath,Michael J. Heap,Hendra Grandis,Hanik Humaida +19 more
TL;DR: In this article, a large-scale inversion code named ECT-3D was developed to handle complex topographical effects like those encountered in volcanic areas, which can reconstruct the electrical conductivity field of an edifice marked by a strong topography and strong variations in the resistivity distribution.
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SP2DINV: A 2D forward and inverse code for streaming potential problems
TL;DR: An effective charge density tensor of the pore water, which can be determined directly from the permeability tensor for neutral pore waters, is introduced in order to reduce the number of (petrophysical) model parameters required to solve the forward problem.