Premium
Computation of Magnetic Anomalies Caused by Two‐Dimensional Structures of Arbitrary Shape: Derivation and Matlab Implementation
Author(s) -
Kravchinsky Vadim A.,
Hnatyshin Danny,
Lysak Benjamin,
Alemie Wubshet
Publication year - 2019
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2019gl082767
Subject(s) - computation , magnetic anomaly , matlab , software , computer science , anomaly (physics) , polar , geophysics , algorithm , computational science , geology , physics , programming language , condensed matter physics , astronomy
The very first computational and most referred in the literature algorithm of Talwani and Heirtzler (1964) for calculating of the magnetic anomaly caused by two‐dimensional irregular shape subsurface structure has particular fundamental and educational significance in geophysics theory. We re‐derive this algorithm from first principles and discuss previous derivation omissions. Our resulting solution differs from the original publication. Based on our new solution we present the two‐dimensional forward magnetic modeling software and associated tutorials which are available for download from the website www.ualberta.ca/~vadim/software.htm . Additionally, we include the computation of the remnant magnetization which can be found using already published apparent polar wonder paths.