TY - JOUR
T1 - The Experience of Magnetovariational Sounding in the Arctic
T2 - the Laptev Sea Region
AU - Starzhinskii, S. S.
AU - Nikiforov, V. M.
AU - Yoshikawa, A.
N1 - Funding Information:
The study was carried out under the project no. 18-1-004 of the “Far East” program of the Far Eastern Branch of the Russian Academy of Sciences Branch of the Russian Academy of Sciences and as part of state contract under the program for fundamental research of the Russian Academy of Sciences (item 70, research issue 3). ACKNOWLEDGMENTS
Publisher Copyright:
© 2020, Pleiades Publishing, Ltd.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - Abstract—We present the results of magnetovariational soundings at two sites (Tiksi Observatory and Kotelny Island in the Laptev Sea region of the Arctic) and their three-dimensional (3D) inversion using the ModEM program. In the models obtained by the inversion, the conductive heterogeneities are present in the regions of the both sites down to a depth of 200 km in the region of the observatory and 100 km beneath the Kotelny Island. The geoelectric heterogeneities in the model in the region of the observatory are most contrasting and voluminous, whereas beneath the island they are more localized. The correlation between the locations of these heterogeneities at both sites and the features of the geological and geophysical structure of the region is noted. It is shown that the applied algorithm of data processing eliminates the effect of the polar electrojet which provides the possibility to study the geoelectric structure of the region by magnetovariational method.
AB - Abstract—We present the results of magnetovariational soundings at two sites (Tiksi Observatory and Kotelny Island in the Laptev Sea region of the Arctic) and their three-dimensional (3D) inversion using the ModEM program. In the models obtained by the inversion, the conductive heterogeneities are present in the regions of the both sites down to a depth of 200 km in the region of the observatory and 100 km beneath the Kotelny Island. The geoelectric heterogeneities in the model in the region of the observatory are most contrasting and voluminous, whereas beneath the island they are more localized. The correlation between the locations of these heterogeneities at both sites and the features of the geological and geophysical structure of the region is noted. It is shown that the applied algorithm of data processing eliminates the effect of the polar electrojet which provides the possibility to study the geoelectric structure of the region by magnetovariational method.
UR - http://www.scopus.com/inward/record.url?scp=85083302588&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083302588&partnerID=8YFLogxK
U2 - 10.1134/S106935132002010X
DO - 10.1134/S106935132002010X
M3 - Article
AN - SCOPUS:85083302588
SN - 1069-3513
VL - 56
SP - 225
EP - 237
JO - Izvestiya, Physics of the Solid Earth
JF - Izvestiya, Physics of the Solid Earth
IS - 2
ER -