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84/ 2013
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Multidisciplinary complex system for monitoring
clouds, aerosols and solar radiation in correlation with Vrancea
seismic activity
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4. Multidisciplinary Analysis
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Figure 4 describes a global
data
analysis of multiple signals. The seismoacoustic monitoring
records short
signals followed
by barks before earthquake with 4 – 5
hours (figure 5).
Figure
4. Analysis
software for precursor phenomena
We
use
pairs of electrodes in
the ground to
measure the telluric field (figure 4). "Meteo data" are from our
meteorological stations (Plostina, Vrancioaia, Nehoiu, Odobesti).
NIEP's magnetometers network are monitoring the geomagnetic field. The
DGD-K is from NOAA satellites network. The
seismicity is present by ML and H (last two drawn, figure 4).
A
Chaparral
infrasound network records earthquake and other
signals from air (see PLOR1).
The rocks'
microcracks generate elastic waves under the tectonic stress. These
waves have a small amplitude and a high frequency[6]. The next record
was
20 Khz sample rate and the high pass filter is set at 5 Khz. Animals
with a very good hearing ability react at these sounds (example in
figure 5).
Figure
5.
Seismoacoustic
signal [7]
The
tectonic stress generates ions in epicentral areas. We have started to
monitor + and - ions but we need time to make an estimation.
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