Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Vladimir Yu. Semenov"'
Autor:
Vladimir Yu. Semenov
Publikováno v:
Acta Geophysica. 63:103-124
The first decade of 21st century is characterized by the appearance of new approaches to deep induction soundings. The theory of magnetovariation and magnetotelluric soundings was generalised or corrected. Spatial derivatives of response functions (i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0276f996140904fb70f0518d787acedb
https://doi.org/10.2478/s11600-014-0217-6
https://doi.org/10.2478/s11600-014-0217-6
Publikováno v:
Induction Soundings of the Earth's Mantle ISBN: 9783319537948
In the first half of the XX century, there appeared new approaches to deep induction soundings. The theory of magnetovariation as well as magnetotelluric soundings was formulated just before the World War Two. Spatial derivatives of response function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4086161b8687a9780f59e9789112f0d
https://doi.org/10.1007/978-3-319-53795-5_4
https://doi.org/10.1007/978-3-319-53795-5_4
Publikováno v:
Induction Soundings of the Earth's Mantle ISBN: 9783319537948
The chapter is dedicated to estimate impedances and their space derivatives using the theory of the random processes. This approach is effective to estimate several unknown values from one equation. Results are prepared in the frequency domain and ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4abb036400231a53d6aeec6c2e9c67e9
https://doi.org/10.1007/978-3-319-53795-5_2
https://doi.org/10.1007/978-3-319-53795-5_2
Publikováno v:
Induction Soundings of the Earth's Mantle ISBN: 9783319537948
The impedances for the deep electromagnetic soundings of the Earth are obtained from the relations for the Fourier amplitudes of the observed field components. These relations are essentially different for the magnetotelluric and magnetovariation sou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b15c05bd9f5eda72b950331d0cc9d8b
https://doi.org/10.1007/978-3-319-53795-5_3
https://doi.org/10.1007/978-3-319-53795-5_3
Publikováno v:
Induction Soundings of the Earth's Mantle ISBN: 9783319537948
The Earth does not have its own impedance and that is why the impedance definitions are numerous and, in some sense, arbitrary. Impedances adapt to the properties of the investigated media, introducing a priori information, for example, about their d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43cfbdeb9d91ee8a77b46a3043dddded
https://doi.org/10.1007/978-3-319-53795-5_1
https://doi.org/10.1007/978-3-319-53795-5_1
Publikováno v:
Earth and Planetary Science Letters. 361:1-6
Monitoring carried out by the generalized magnetovariation (GMV) and geomagnetic depth sounding (GDS) methods has shown a valuable variability of yearly apparent resistivities from the yr 1911 to 2010 for the selected European geomagnetic observatori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d7fa8ca00867a6f85915ae0ba3415cd
https://doi.org/10.1016/j.epsl.2012.11.027
https://doi.org/10.1016/j.epsl.2012.11.027
Publikováno v:
Acta Geophysica. 61:264-280
Induced magnetic fields in the Earth arise due to two phenomena: induction generated by the time-variable exciting field and the motional induction caused by movement of the conductive planet in the outer magnetic fields. The comparison of both appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebac854304721cba4387502e76ff9177
https://doi.org/10.2478/s11600-012-0086-9
https://doi.org/10.2478/s11600-012-0086-9
Publikováno v:
Acta Geophysica. 59:815-832
The hourly data of nine geomagnetic observatories situated in Central Europe have been analyzed using the generalized magnetovariation (GMV) method designed recently for induction soundings of inhomogeneous media. In this method, impedance is one of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c060cc7ea4ab09c2c39bf77a588ccb31
https://doi.org/10.2478/s11600-011-0030-4
https://doi.org/10.2478/s11600-011-0030-4
Publikováno v:
Acta Geophysica. 58:527-542
Determination of impedances is necessary in order to eliminate some shortcoming of our knowledge about structures of the exciting source fields and their fickleness. The experimental impedances for induction soundings result from the impedance bounda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ce1e648a7d0ea9c8461334541f332ad
https://doi.org/10.2478/s11600-010-0003-z
https://doi.org/10.2478/s11600-010-0003-z
Autor:
Jan Vozar, Vladimir Yu. Semenov, Boris Ladanyvskyy, Josef Pek, Waldemar Jóźwiak, Pavel Pushkarev, I.M. Logvinov, Antal Ádám
Publikováno v:
Acta Geophysica. 56:957-981
In the years 2001–2003, we accomplished the experimental phase of the project CEMES by collecting long-period magnetotelluric data at positions of eleven permanent geomagnetic observatories situated within few hundreds kilometers along the south-we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fb35c8a766cbffb38e1608e21862236
https://doi.org/10.2478/s11600-008-0058-2
https://doi.org/10.2478/s11600-008-0058-2