[3] viXra:1503.0206 [pdf] submitted on 2015-03-27 05:31:52
Authors: Herbert Weidner
Comments: 5 Pages.
Superconducting gravimeters are overloaded by strong earthquakes and stop the measurement. Here it is shown that, in the first hours after restart, most of the SG deliver erroneous data, which prevents an accurate frequency measurement. Avoiding this disturbed region, the frequency can be determined much more accurately than before.
Category: Geophysics
[2] viXra:1503.0176 [pdf] submitted on 2015-03-23 13:56:16
Authors: Herbert Weidner
Comments: 10 Pages.
Long-term spectrograms show that after strong earthquakes, the frequency of the 0S0 resonance of the earth varies with no apparent regularity. This also applies to the structure and the location of the sidebands. Measurements with the zero beat method show a frequency modulation of unknown cause, which can hardly be detected by FFT.
Category: Geophysics
[1] viXra:1503.0006 [pdf] replaced on 2016-01-03 08:19:01
Authors: M. Kovalyov, N. Kovalyov, S. Kovalyov.
Comments: 8 Pages.
The article discusses the global aspects of the (almost) antipodal symmetry on Earth
which should have been widely known by now but somehow managed to stay unnoticed.
Category: Geophysics