Accurate 1D forward and inverse modeling of high-frequency helicopter-borne electromagnetic data

Geophysics

Volumn 77, Issue 4, 2012, Pages

  Siemon, Bernhard ^a  

^a FEDERAL INSTITUTE FOR GEOSCIENCES AND NATURAL RESOURCES BGR   (Germany)

Author keywords

Airborne survey; Electromagnetics; Inversion; Modeling; Near surface

Indexed keywords

FREQUENCY DOMAIN ANALYSIS; GEOMETRY; JACOBIAN MATRICES; LAPLACE TRANSFORMS; MODELS; POLYNOMIAL APPROXIMATION; SURVEYS; TABLE LOOKUP;

AIRBORNE SURVEYS; DISPLACEMENT CURRENTS; ELECTROMAGNETICS; FORWARD AND INVERSE MODELING; INVERSION; NEAR SURFACES; NUMERICAL LAPLACE TRANSFORM; QUASISTATIC APPROXIMATIONS;

INVERSE PROBLEMS;

ACCURACY ASSESSMENT; AIRBORNE SENSING; ELECTROMAGNETIC SURVEY; INVERSE PROBLEM; ONE-DIMENSIONAL MODELING; TRANSFORM;

EID: 84864107756     PISSN: 00168033     EISSN: None     Source Type: Journal    
DOI: 10.1190/geo2011-0371.1     Document Type: Article

References (45)

1. Ahl, A., 2003, Automatic 1D inversion of multifrequency airborne electromagnetic data with artificial neural networks: Discussion and case study: Geophysical Prospecting, 51, 89-98, http://dx.doi.org/10.1046/j.1365-2478.2003.00356.x GPPRAR 0016-8025
2. Anderson, W. L., 1979, Numerical integration of related Hankel transform of order 0 and 1 by adaptive digital filtering: Geophysics, 44, 1287-1305, http://dx.doi.org/10.1190/1.1441007 GPYSA7 0016-8033
3. Anderson, W. L., 1989, A hybrid fast Hankel transform algorithm for electromagnetic modeling: Geophysics, 54, 263-266, http://dx.doi.org/10.1190/1.1442650 GPYSA7 0016-8033
4. 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 JAGPEA 0926-9851
5. Beard, L. P. and J. E. Nyquist, 1998, Simultaneous inversion of airborne electromagnetic data for resistivity and magnetic permeability: Geophysics, 63, 1556-1564, http://dx.doi.org/10.1190/1.1444452 GPYSA7 0016-8033
6. Christensen, N. B., 1990, Optimized fast Hankel transform filters: Geophysical Prospecting, 38, 545-568, http://dx.doi.org/10.1111/gpr.1990.38.issue-5 GPPRAR 0016-8025
7. de Louw, P. G. B., S. Eeman, B. Siemon, B. R. Voortman, J. Gunnink, E. S. van Baaren and G. H. P. Oude Essink, 2011, Shallow rainwater lenses in deltaic areas with saline seepage: Hydrology and Earth System Sciences, 15, 3659-3678 (accessed 26 March 2012; http://dx.doi.org/10.5194/hess-15-3659-2011 HESSCF 1027-5606
8. Farquharson, C. G., D. W. Oldenburg and P. S. Routh, 2003, Simultaneous one-dimensional inversion of loop-loop electromagnetic data for magnetic susceptibility and electrical conductivity: Geophysics, 68, 1857-1869, http://dx.doi.org/10.1190/1.1635038 GPYSA7 0016-8033
9. Fitterman, D. V., 1998, Source of calibration errors in helicopter EM data: Exploration Geophysics, 29, 65-70, http://dx.doi.org/10.1071/EG998065
10. Fitterman, D. V. and C. Yin, 2004, Effect of bird maneuver on frequency-domain helicopter EM response: Geophysics, 69, 1203-1215, http://dx.doi.org/10.1190/1.1801937 GPYSA7 0016-8033
11. Fluche, B., 1990, Verbesserte Verfahren zur Lösung des direkten und des inversen Problems in der Hubschrauber-Elektromagnetik, in V. Haak and J. Homilius, eds., Protokoll Kolloquium Erdmagnetische Tiefensondierung: Hornburg, 249-266.
12. Fluche, B. and K.-P. Sengpiel, 1997, Grundlagen und Anwendungen der Hubschrauber-Geophysik: in M. Beblo, ed., Umweltgeophysik: Ernst und Sohn, 363-393.
13. Fountain, D., 1998, Airborne electromagnetic systems 50 years of development: Exploration Geophysics (Collingwood, Australia), 29, 1-11, http://dx.doi.org/10.1071/EG998001 EXGEEF 0812-3985
14. Fountain, D., 2008, 60 years of airborne EM - Focus on the last decade: Proceedings on AEM2008 - 5th International Conference on Airborne Electromagnetics, Haikko Manor, Finland.
15. Fraser, D. C., 1978, Resistivity mapping with an airborne multicoil electromagnetic system: Geophysics, 43, 144-172, http://dx.doi.org/10.1190/1.1440817 GPYSA7 0016-8033
16. Frischknecht, F. C., 1967, Fields about an oscillating magnetic dipole over a two-layer earth, and application to ground and airborne electromagnetic surveys: Quarterly of the Colorado School of Mines, TN210.C68, 62, no. 1.
17. Grant, F. S. and G. F. West, 1965, Interpretation theory in applied geophysics: McGraw-Hill Book Company.
18. Guptasarma, D. and B. Singh, 1997, New digital filters for Hankel J0 and J1 transforms: Geophysical Prospecting, 45, 745-762, http://dx.doi.org/10.1046/j.1365-2478.1997.500292.x GPPRAR 0016-8025
19. Hodges, G. and B. Siemon, 2008, Comparative analysis of one-dimensional inversions of helicopter-borne frequency-domain electromagnetic data: Proceedings on AEM2008 - 5th International Conference on Airborne Electromagnetics, Haikko Manor, Finland.
20. Holladay, S. and B. Lo, 1997, Airborne frequency-domains EM - Review and preview, in A. G. Gubins, ed., Proceedings of Exploration 97: Fourth Decennial International Conference on Mineral Exploration, 505-514.
21. Huang, H. and D. C. Fraser, 2000, Airborne resistivity and susceptibility mapping in magnetically polarizable areas: Geophysics, 65, 502-511, http://dx.doi.org/10.1190/1.1444744 GPYSA7 0016-8033
22. Huang, H. and D. C. Fraser, 2001, Mapping of the resistivity, susceptibility, and permittivity of the earth using a helicopter-borne electromagnetic system: Geophysics, 66, 148-157, http://dx.doi.org/10.1190/1.1444889 GPYSA7 0016-8033
23. Huang, H. and D. C. Fraser, 2002, Dielectric permittivity and resistivity mapping using high-frequency, helicopter-borne EM data: Geophysics, 67, 727-738, http://dx.doi.org/10.1190/1.1484515 GPYSA7 0016-8033
24. Huang, H. and D. C. Fraser, 2003, Inversion of helicopter electromagnetic data to a magnetic conductive layered earth: Geophysics, 68, 1211-1223, http://dx.doi.org/10.1190/1.1598113 GPYSA7 0016-8033
25. Johansen, H. K. and K. Sørensen, 1979, The fast Hankel transform: Geophysical Prospecting, 27, 876-901, http://dx.doi.org/10.1111/gpr.1979.27.issue-4 GPPRAR 0016-8025
26. Ley-Cooper, Y. and J. Macnae, 2007, Amplitude and phase correction of helicopter EM data: Geophysics, 72, no. 3, F119-F126, http://dx.doi.org/10.1190/1.2717498 GPYSA7 0016-8033
27. Mundry, E., 1984, On the interpretation of airborne electromagnetic data for the two-layer case: Geophysical Prospecting, 32, 336-346, http://dx.doi.org/10.1111/gpr.1984.32.issue-2 GPPRAR 0016-8025
28. Pfaffling, A. and J. E. Reid, 2009, Sea ice as an evaluation target for HEM modelling and inversion: Journal of Applied Geophysics, 67, 242-249, http://dx.doi.org/10.1016/j.jappgeo.2008.05.010 JAGPEA 0926-9851
29. Sengpiel, K.-P., 1988, Approximate inversion of airborne EM data from a multi-layered ground: Geophysical Prospecting, 36, 446-459, http://dx.doi.org/10.1111/gpr.1988.36.issue-4 GPPRAR 0016-8025
30. Sengpiel, K.-P. and B. Siemon, 2000, Advanced inversion methods for airborne electromagnetic exploration: Geophysics, 65, 1983-1992, http://dx.doi.org/10.1190/1.1444882 GPYSA7 0016-8033
31. Siemon, B., 2001, Improved and new resistivity-depth profiles for helicopter electromagnetic data: Journal of Applied Geophysics, 46, 65-76, http://dx.doi.org/10.1016/S0926-9851(00)00040-9 JAGPEA 0926-9851
32. Siemon, B., 2006, Electromagnetic methods - frequency domain: Airborne techniques, in R. Kirsch, ed., Groundwater geophysics - A tool for hydrogeology: Springer-Verlag, 155-170, Berlin, Heidelberg.
33. Siemon, B., 2009, Levelling of helicopter-borne frequency-domain electromagnetic data: Journal of Applied Geophysics, 67, 206-218, http://dx.doi.org/10.1016/j.jappgeo.2007.11.001 JAGPEA 0926-9851
34. Siemon, B., E. Auken and A. V. Christiansen, 2009a, Laterally constrained inversion of frequency-domain helicopter-borne electromagnetic data: Journal of Applied Geophysics, 67, 259-268, http://dx.doi.org/10.1016/j.jappgeo.2007.11.003 JAGPEA 0926-9851
35. Siemon, B., A. V. Christiansen and E. Auken, 2009b, A review of helicopter-borne electromagnetic methods for groundwater exploration: Near Surface Geophysics, 7, 629-646, http://dx.doi.org/10.3997/1873-0604.2009043 1569-4445
36. Siemon, B., C. Stuntebeck, K.-P. Sengpiel, B. Röttger, H.-J. Rehli and D. G. Eberle, 2002, Investigation of hazardous waste sites and their environment using the BGR helicopter-borne geophysical system: Journal of Environmental and Engineering Geophysics, 7, 169-181, http://dx.doi.org/10.4133/JEEG7.4.169 1083-1363
37. Tølbøll, R. J. and N. B. Christensen, 2006, Robust 1D inversion and analysis of helicopter electromagnetic (HEM) data: Geophysics, 71, no. 2, G53-G62, http://dx.doi.org/10.1190/1.2187752 GPYSA7 0016-8033
38. Wait, J. R., 1982, Geo-electromagnetism: Academic Press.
39. Ward, S. H. and G. W. Hohmann, 1987, Electromagnetic theory for geophysical applications, in M. N. Nabighian, ed., Electromagnetic methods in applied geophysics, 1: SEG, 130-310.
40. Weidelt, P., 1988, Einführung in die elektromagnetiche Tiefenforschung: Lecture manuscript: Technical University of Braunschweig.
41. Wöhrl, S., 1994, Die elektromagnetische Horizontalspulenmethode: Neue Wege zur Dateninterpretation: Ph.D. thesis, Institut für Geophysik und Meteorologie.
42. Xiong, Z. and A. C. Tripp, 1997, 3-D electromagnetic modeling for near-surface targets using integral equations: Geophysics, 62, 1094-1106, http://dx.doi.org/10.1190/1.1444210 GPYSA7 0016-8033
43. Yin, C. and G. Hodges, 2005, Influence of displacement currents on the response of helicopter electromagnetic systems: Geophysics, 70, no. 4, G95-G100, http://dx.doi.org/10.1190/1.1993710 GPYSA7 0016-8033
44. Yin, C. and G. Hodges, 2007a, 3D animated visualization of EM diffusion for a frequency-domain helicopter EM system: Geophysics, 72, no. 1, F1-F7, http://dx.doi.org/10.1190/1.2374706 GPYSA7 0016-8033
45. Yin, C. and G. Hodges, 2007b, Simulated annealing for airborne EM inversion: Geophysics, 72, no. 4, F189-F195, http://dx.doi.org/10.1190/1.2736195 GPYSA7 0016-8033