Title :
Long-term electromagnetic field observational network in Russian Primorye
Author :
Nikiforov, Valerian ; Palshin, Nikolay ; Starzhinskii, Sergey ; Kouznetsov, Vitaly
Author_Institution :
Ilichev Pacific Oceanological Inst., Russian Acad. of Sci., Vladivostok, Russia
Abstract :
An electromagnetic field observational network is being constructed in Russian Primorye. The method employs a commercial telephone network to measure voltage differences with long dipole lengths ranging from 10 to several dozens of kilometers. For better understanding of the spatial and frequency behavior of transfer functions a prognostic model of 3D conductivity structure has been constructed and the numerical modeling has been carried out. The particular aim is to check the hypothesis that the lithospheric mantle is much more resistive that is was estimated using a homogeneous model of the lithosphere and the low values of effective integral resistivity were obtained due to the influence of the sub-vertical conducting zones associated with subduction system.
Keywords :
Earth mantle; geomagnetism; geophysical techniques; terrestrial electricity; 3D conductivity structure; Russian Primorye; commercial telephone network; dipole lengths; effective integral resistivity; electromagnetic filed observational network; lithospheric mantle; subduction system; subvertical conducting zone; transfer function frequency behavior; transfer function spatial behavior; voltage difference measurement; Azimuth; Conductivity; Electric variables measurement; Electromagnetic fields; Geomagnetism; Intelligent networks; Magnetic field measurement; Sea measurements; Telephony; Transfer functions;
Conference_Titel :
Scientific Use of Submarine Cables and Related Technologies, 2003. The 3rd International Workshop on
Conference_Location :
Tokyo, Japan
Print_ISBN :
0-7803-7775-3
DOI :
10.1109/SSC.2003.1224124
