First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation
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| Дата: | 2010 |
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Інститут геофізики ім. С.I. Субботіна НАН України
2010
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| Назва видання: | Геофизический журнал |
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| Цитувати: | First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation / Yu. Bogdanov, A. Kvasnyuk, V. Kobolev, N. Loyko, O. Rusakov, V. Pavlovych, V. Shuman // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 19-20. — Бібліогр.: 3 назв. — англ. |
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irk-123456789-1012122016-06-01T03:03:38Z First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation Bogdanov, Yu. Kvasnyuk, A. Kobolev, V. Loyko, N. Rusakov, O. Pavlovych, V. Shuman, V. 2010 Article First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation / Yu. Bogdanov, A. Kvasnyuk, V. Kobolev, N. Loyko, O. Rusakov, V. Pavlovych, V. Shuman // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 19-20. — Бібліогр.: 3 назв. — англ. 0203-3100 http://dspace.nbuv.gov.ua/handle/123456789/101212 en Геофизический журнал Інститут геофізики ім. С.I. Субботіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| format |
Article |
| author |
Bogdanov, Yu. Kvasnyuk, A. Kobolev, V. Loyko, N. Rusakov, O. Pavlovych, V. Shuman, V. |
| spellingShingle |
Bogdanov, Yu. Kvasnyuk, A. Kobolev, V. Loyko, N. Rusakov, O. Pavlovych, V. Shuman, V. First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation Геофизический журнал |
| author_facet |
Bogdanov, Yu. Kvasnyuk, A. Kobolev, V. Loyko, N. Rusakov, O. Pavlovych, V. Shuman, V. |
| author_sort |
Bogdanov, Yu. |
| title |
First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation |
| title_short |
First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation |
| title_full |
First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation |
| title_fullStr |
First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation |
| title_full_unstemmed |
First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation |
| title_sort |
first instrumental recognition of the earth eigenmodes in radio frequency electromagnetic radiation |
| publisher |
Інститут геофізики ім. С.I. Субботіна НАН України |
| publishDate |
2010 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/101212 |
| citation_txt |
First instrumental recognition of the Earth eigenmodes in radio frequency electromagnetic radiation / Yu. Bogdanov, A. Kvasnyuk, V. Kobolev, N. Loyko, O. Rusakov, V. Pavlovych, V. Shuman // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 19-20. — Бібліогр.: 3 назв. — англ. |
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Геофизический журнал |
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| fulltext |
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First instrumental recognition of the Earth eigenmodes in
radio frequency electromagnetic radiation
Yu. Bogdanov1, A. Kvasnyuk2, V. Kobolev1, N. Loyko3, O. Rusakov1,
V. Pavlovych2, V. Shuman1, 2010
1Institute of Geophysics, National Academy of Sciences of Ukraine, Kiev, Ukraine
2Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kiev, Ukraine
3 “Yug-neftegeologia” Ltd, Kiev, Ukraine
At present time eigenmodes of the Earth and
earthquakes-related long period oscillations are re-
liably registered by seismic and gravitational me-
thods. A special term has been put forward for the
definition of such oscillations, namely seismic —
gravitational oscillations of the Earth [Linkov et al.,
1989]. There have been determined the structure of
oscillations spectrum with periods above one hour
and delineated the regions of the most intensive Earth
oscillations.
A new relevant geodynamic conception has been
developed in the past several years. It states that
"the mechanism of forced cyclic relative build-up
and wandering of the Earth’s core and mantle over
the geological periods of time is a single and main
mechanism controlling the plate tectonic and plume
tectonic activity of the Earth" [Barkin, 2002; Barkin,
Vilke, 2004]. The periods of free oscillations of the
dynamic system (the elastic mantle — Earth’s core)
have been revealed to be as 3.47, 4.06 and 4.89
hours. An analysis of different experimental obser-
vations has demonstrated that the variations with
periods from 1.497 to 24 hours are characteristic of
all planetary processes.
New methods and technologies are employed
to examine long period waves, with these methods
being particularly based on the use of natural elec-
tromagnetic emission of the Earth. The present study
is aimed at detecting some regularities of the Earth
oscillations processes in the spectrum of the Earth’s
electromagnetic radiation (EMR). Experimental ob-
servations have been performed to reveal EMP os-
cillations frequencies already registered by seismic
— gravitational methods and to finding new harmo-
nics of oscillations. They have been carried out on
the Ukrainian Antarctic Station (ö= 64º15?S, ë=
65º15 W) and at 3 sites in Ukraine ( =50ºN,
=35º51 E; =44º51 N, =3(º5� E; =((º)* N,
=33º)+ E) during 2004—2009.
A three component EMR detector has been used
to measure 1—100 Hz frequencies (at a level of 3dB)
in a dynamic range of 1—20 nT. A quantity of pulses
has been registered in time (N) unit exceeding the
specified threshold. It is proportional to root-mean-
square value of carrier frequency.
A method for revealing latent periodicity and
Wavelet — analysis have been applied to mathemati-
cal processing, interpretation and visualization of
results. An analysis of graphs from four stations
demonstrates that the strong negative correlation
is observed in some vicinity of characteristic fre-
quencies of 0.15, 0.20, 0.21, 0.28, 0.2 MHz in peri-
ods from 10 to 90 min. The full spectrum of EMR
oscillations from Antarctica and in Ukraine contains
sufficient frequencies. Their analysis exhibits that
the properties of a signal in the interval of 0—
250 min, including its frequency characteristic and
duration, correspond to seismic-gravitational mul-
tiplets and to natural oscillations of the inner Earth’s
core with a period of about 200 min.
The periods have been also registered to be
needed for explanation, for example, the Shuler
period of 84.4 min. The oscillations with the Shuler
period are expressed more intensively in Antarctica
than in the middle latitudes of Ukraine. In Figure the
time series data cover 1440 min, i. e. one day. The
graphs of Wavelet decomposition are situated for
Antarctica and Ukrainian on the right and left of the
Figure respectively. The following periods of oscilla-
tions are observed: the eigenmodes of the core with
the basic oscillations of ~14 hour (the 2th row of the
graphs), the oscillations with a period of ~5 hour
(the 3th row of the graphs), the variations in the sy-
nodic month duration, the oscillations of the inner core
with a period of~3 hour 18 min (the 4th row of the
graphs), the Shuler period ~84 min (the 5th row of the
graphs). According to Petrova the oscillations with
periods of 78 min (the 6th row of the graphs), 67 min
(the 7th row of the graphs), and 54 min (the 8th row of
the graphs) are main harmonics reliably registered in
Ukraine. On the contrary, the amplitudes of these os-
cillations are negligible in Antarctica.
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The above results indicate the existence of both
inner and cosmic sources of oscillation processes
in the Earth. The indicator of these global processes
is background electromagnetic radiation. The para-
digm of originating electromagnetic oscillations in the
Earth implies that any eigenmodes of planet oscilla-
tions leads to change in the Earth deformation mode
resulting in the generation of EMR. All frequencies of
the mechanical eigenmodes in the Earth must be re-
vealed in spectrum of electromagnetic radiation. Based
on observations of Earth electromagnetic variations
in Antarctica and Ukraine, it has been established that
not only generally acknowledged seismic-gravitational
oscillations but all planetary processes must addition-
ally oscillate with periods of an hour range, for ex-
ample, the Shuler period (T 84 min), and with differ-
ent daily periods from 14 days to 28 days which are
not shown in the Figure).
In conclusion, for the first time our instrumental
observations have recognized the frequencies of the
Earth mechanical eigenmodes in the spectrum of
its background electromagnetic radiation.
Linkov E. M., Petrova K. M., Zuroshvili D. D. Sesmic-gravi-
tational oscillations of the Earth and related with them
perturbations of the atmosphere // Dok. AN SSSR. —
1989. — 306, � 2. — P. 314—317 (in Russian).
References
Barkin Yu. V. The explanation of the endogenous activity
of the planets and satellites: the mechanism of its
cyclicity // Izv.of RAEN. Earth science section. — 2002.
— ��9. — P. 45—97 (in Russian).
Barkin Yu., Vilke V. G. Celestial Mechanics of Planet
Shells // Astronom. Astrophys. Transactions. — 2004.
— 23, ��6. — P. 533—553.
Fig. 1. The change in the mean value
of EMR signal and its Wavelet decom-
positions over twenty four hours in
Antarctica (rhs) and in Ukraine (lhs).
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