Go to  Advanced Search

Inversion of airborne electromagnetic data in 2.5D

Show simple item record

dc.contributor.author Yu, Wing Wa
dc.date.accessioned 2012-10-16T19:52:48Z
dc.date.available 2012-10-16T19:52:48Z
dc.date.copyright 2012 en_US
dc.date.issued 2012-10-16
dc.identifier.uri http://hdl.handle.net/2429/43416
dc.description.abstract In this work, we implement an inversion algorithm for airborne electromagnetic (AEM) data in the frequency domain by using 2D conductivity models. First, we discretize the 2.5D Maxwell's equations on a staggered grid and test the numerical accuracy of the forward solution. The inverse problem is then solved by regularized minimization approach using the limited memory BFGS variant of the quasi-Newton method. Next, EM responses from a synthetic 2D conductivity model are inverted to validate the algorithm. Finally, we use the algorithm on an AEM field dataset from a RESOLVE survey and compare the inversion results to those obtained from a well-established 1D implementation. en_US
dc.language.iso eng en_US
dc.publisher University of British Columbia en
dc.title Inversion of airborne electromagnetic data in 2.5D en_US
dc.type Electronic Thesis or Dissertation en
dc.degree.name Master of Science - MSc en_US
dc.degree.discipline Mathematics en_US
dc.degree.grantor University of British Columbia en
dc.date.graduation 2012-11 en_US
dc.degree.campus UBCV en_US
dc.description.scholarlevel Graduate en


Files in this item

Files Size Format Description   View
ubc_2012_fall_yu_wing-wa.pdf 4.254Mb Adobe Portable Document Format   View/Open
 

This item appears in the following Collection(s)

Show simple item record

All items in cIRcle are protected by copyright, with all rights reserved.

UBC Library
1961 East Mall
Vancouver, B.C.
Canada V6T 1Z1
Tel: 604-822-6375
Fax: 604-822-3893