investigates the groundwater aquifer located in Fayuim oasis. In this study, two
of the electromagnetic measurement methods have been used in determining the hydrological
situation in the Fayoum oasis. The first is airborne electromagnetic (AEM) which,
sometimes is referred to as Helicopter electromagnetic (HEM) and the second is ground
Time-domain Electromagnetic method (TEM). The subsurface consists of four geoelectrical
layers with a rough slope towards the center. The third and the fourth layers in
the succession are suggested to be the two-groundwater aquifers. The third layer
saturates with fresh water overlying saline water which exists in the bottom of
the second one. It is worth mentioning that the depth of the fresh water surface
undulates between the surface level in two lakes in the study area and 57 meters
below the ground, whereas the thickness of the fresh water aquifer varies from 13
to 36 meters. The depth of the saline water surface undulates between 59 and 81
meters below the ground. In general, airborne electromagnetic surveying has the
advantage of fast resistivity mapping with high lateral resolution. Groundbased
geophysical surveys are often more accurate, but they are definitely slower than
airborne surveys. It depends on targets of interest, time, budget, and manpower
available by the method or the combination of methods that will be chosen. A combination
of different methods is useful to obtain a detailed understanding of the subsurface
Cite this paper
Basheer, A. , Taha, A. , El-Kotb, A. , Abdalla, F. and Elkhateeb, S. (2014) Relevance of AEM and TEM to Detect the Groundwater Aquifer at Faiyum Oasis Area, Faiyum, Egypt. International Journal of Geosciences
, 611-621. doi: 10.4236/ijg.2014.56056
 Said, R. (1961) Tectonic Framework and Its Influence on Distribution of Forminifera. The American Association of Petroleum Geologists Bulletin, 45, 198-218.
 Tamer, A., El-Shazly, M. and Shata, A. (1975) Geology of the Fayum-Beni Suef Region: Part II Geomorphology. Desert Institute Bulletin, 25, 17-25.
 Tamer, A., El-Shazly, M. and Shata, A. (1975) Geology of the Fayum-Beni Suef Region: Part II Stratigraphy. Desert Institute Bulletin, 25, 27-45.
 Siemon, B. (2009) Levelling of Frequency-Domain Helicopter-Borne Electromagnetic Data. Journal of Applied Geophysics, 67, 206-218. http://dx.doi.org/10.1016/j.jappgeo.2007.11.001
 Palacky, G.J. and West, G.F. (1991) Airborne Electromagnetic Methods. In: Nabighian, M.N., Ed., Electromagnetic Methods in Applied Geophysics, Volume 2 of Investigations in Geophysics No. 3, Society of Exploration Geophysics, Chapter 10, Springer, The Netherlands, 811-879.
 Sengpiel, K.P. and Siemon, B. (1998) Examples of 1D Inversion of Multifrequency AEM Data from 3D Resistivity Distributions. Exploration Geophysics Journal, 29, 133-141. http://dx.doi.org/10.1071/EG998133
 Sengpiel, K.P. and Siemon, B. (2000) Advanced Inversion Methods for Airborne Electromagnetics. Geophysics, 66, 1983-1992. http://dx.doi.org/10.1190/1.1444882
 Nabighian, M.N. (1979) Quasi-Static Response of a Conductive Half-Space. An Approximation Represntstion. Geophysics, 44, 1700-1705. http://dx.doi.org/10.1190/1.1440931
 Hoversten, G.M., Dey, A. and Morrison, H.F. (1982) Comparison of Five Least-Squares Inversion Techniques in Resistivity Sounding. Geophysical Prospecting, 30, 688-734. http://dx.doi.org/10.1111/j.1365-2478.1982.tb01334.x
 Fitterman, D.V. (1986) Transient Electromagnetic Sounding in the Michigan Basin for Groundwater Evaluation: Presented at National Water Assn. Conference-Surface and Borehole Geophysical Methods, Denver, 21 November 1987, 685-692.
 Fitterman, D.V. and Stewart, M.T. (1986) Transient Electromagnetic Sounding for Groundwater. Geophysics, 51, 995-1005. http://dx.doi.org/10.1190/1.1442158
 Valleau, N. (2000) HEM Data Processing—A Practical Overview. Exploration Geophysics, 31, 584-594.http://dx.doi.org/10.1071/EG00584
 Siemon, B., Christiansen, A.V. and Auken, E. (2009) A Review of Helicopter-Borne Electromagnetic Methods for Groundwater Exploration. Near Surface Geophysics, 7, 629-646.
 Beard, L.P. (2000) Comparison of Methods for Estimating Earth Resistivity from Airborne Electromagnetic Measurements. Journal of Applied Geophysics, 45, 239-259. http://dx.doi.org/10.1016/S0926-9851(00)00032-X
 Siemon, B. (2001) Improved and New Resistivity-Depth Profiles for Helicopter Electromagnetic Data. Journal of Applied Geophysics, 38, 65-76. http://dx.doi.org/10.1016/S0926-9851(00)00040-9
 Fraser, D.C. (1978) Resistivity Mapping with an Airborne Multicoil Electromagnetic System. Geophysics, 43, 144-172.http://dx.doi.org/10.1190/1.1440817
 Sengpiel, K.P. (1983) Resistivity/Depth Mapping with Airborne Electromagnetic Survey Data. Geophysics, 48, 181-196. http://dx.doi.org/10.1190/1.1441457
 Sengpiel, K.P. (1990) Theoretical and Practical Aspects of Groundwater Exploration Using Airborne Electromagnetic Techniques. In: Fitterman, D.V., Ed., Developments and Application of Modern Electromagnetic Surveys, US Geolocical Survey Bulletin 1925, Washington DC, 149-154.
 Hodges, G. and Siemon, B. (2008) Comparative Analysis of One-Dimensional Inversions of Helicopter-Borne Frequency-Domain Electromagnetic Data. Proceeding on AEM2008—5th International Conference on Airborne Electromagnetics, Haikko Manor, 28-30 May 2008, 231-239.
 Stephan, Wendland, E. and Fix, G. (1991) Electromagnetic Modeling by Finite Element Methods France Proceeding. Academic Press, London.
 Soliman, M.M.M. (2005) Environmental and Geophysical Assessment of the Ground and Subsurface Water Resources of Ras El-Hekma Area, Northwestern Coast of Egypt. Ph.D., Geophysic, Faculty of Science, Ein Shams University, Cairo.
 TEMIXL XL Program V4 (1996) Temix V.4 User’s Manual, Interpex, 468 p.
 Won, I.J., Oren, A. and Funak, F. (2003) GEM-2A: A Programmable Broadband Helicopter-Towed Electromagnetic Sensor. Geophysics, 68, 1888-1895. http://dx.doi.org/10.1190/1.1635041