Ukrainian Antarctic journal

No 6-7 (2008): Ukrainian Antarctic Journal
Articles

Geoelectromagnetic field in the shoreline region according to physical modelling

V. M. Kobzova
Carpathian Branch of S. I. Subbotin Institute of Geophysics of NAS of Ukraine, Lviv
V. Yu. Maksymchuk
Carpathian Branch of Institute of Geophysics of NAS of Ukraine, Lviv
B. T. Ladanivskiy
Carpathian Branch of S. I. Subbotin Institute of Geophysics of NAS of Ukraine, Lviv
P. K. Martyuk
Carpathian Branch of S. I. Subbotin Institute of Geophysics of NAS of Ukraine, Lviv
R. B. Dutko
Carpathian Branch of S. I. Subbotin Institute of Geophysics of NAS of Ukraine, Lviv
Published December 15, 2008
Keywords
  • physical modeling,
  • geoelectromagnetic field,
  • cape,
  • bay,
  • islands

Abstract

The analog modeling method with usage of special laboratory installation was applied for direct electrodynamics problem of three-layered environment with local 3D conductance inhomogeneity. It is shown that anomalous geomagnetic fields created by the local coast structures (cape, bay, islands near continent) should be taken into account for 2D magnetotelluric data inversion. The coast effect caused by complex shape of coastline unlike linear one could be as a large hindrance for deep MT sounding on coast estimation of depth of high-conductive mantle could be reduced.