Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Art Raiche"'
Publikováno v:
ASEG Extended Abstracts. 2007:1-5
Over the past 27 years, the AMIRA P223 project series has produced an extensive body of EM modelling and inversion programs used by the minerals, environmental and defence industries for planning and interpreting EM surveys, and for the development o
Autor:
Art Raiche, J. H. Coggon
Publikováno v:
Geophysical Journal of the Royal Astronomical Society. 42:1035-1038
Publikováno v:
Exploration Geophysics. 37:363-371
Time-domain airborne surveys gather hundreds of thousands of multichannel, multicomponent samples. The volume of data and other complications have made 1D inversions and transforms the only viable method to interpret these data, in spite of their lim
Publikováno v:
ASEG Extended Abstracts. 2006:1-4
2.5D electromagnetic (EM) modelling computes the response due to a 3D source from an arbitrary 2D geoelectrical model which has an infinite strike length. As such, airborne EM (AEM) data can be inverted using 2.5D modelling provided that the geoelect
Publikováno v:
ASEG Extended Abstracts. 2004:1-4
Wedges are structures that vary in thickness from top to bottom over length. Despite their application to modelling the regolith, groundwater and bathymetric problems, wedges have not been studied in any great detail. We simulated the response of wed
Autor:
Art Raiche
Publikováno v:
ASEG Extended Abstracts. 2004:1-4
Many AEM inversion techniques have been applied successfully to locating isolated, highly conducting targets in uniform hosts. What happens when these targets occur in complex hosts overlain by non-uniform regolith with topographic features? In princ
Autor:
Fred Sugeng, Art Raiche
Publikováno v:
ASEG Extended Abstracts. 2004:1-4
The demand for an accurate and efficient general electromagnetic (EM) program to model the EM field in complex geological structures led us to the development of the three-dimensional edge finite-element program. It has the capability to model the fr
Publikováno v:
ASEG Extended Abstracts. 2003:1-4
Using two examples, we show good matches between field and 3D modelling data. The 3D models were small enough to reduce runtimes, yet incorporate sufficient complexity to model complex environments more accurately than plate or layered-earth based mo
Publikováno v:
ASEG Extended Abstracts. 2003:1-4
Two basic questions lay at the heart of AEM surveys, one concerning the basic physics of the process, the other the interpreter?s capability. Is the equipment capable of exciting the target to the extent that it will produce a detectable signal above
Publikováno v:
ASEG Extended Abstracts. 2003:1-4
The airborne electromagnetics (AEM) technique has been used very successfully for over 50 years to locate conductive ore bodies. For most users of the technique, the primary purpose of AEM has been to provide a rapid and inexpensive means to locate t