Publication Date:
2017-04-04
Description:
A seafloor multisensor module with real-time data transmission,
known as CUMAS, has been successfully deployed in the Gulf
of Pozzuoli, in the Campi Flegrei caldera, which is one of the
most hazardous volcanic areas in the World. CUMAS records
seismological signals and provides measurements related to
the water-current system. A test for the detection of sea level
changes, potentially related to the seafloor uplift or subsidence,
is ongoing with the use of the pressure gauge data.
A surface buoy is equipped with additional sensors for
meteorological measurements and receives the continuous
scientific and status data streams from the CUMAS station
via cable. These data are then transmitted by a wireless system
to the INGV monitoring center in Naples. CUMAS is fully
integrated into the geophysical land-based monitoring system
that is managed by INGV, and it is the first off-shore station of
the local network. An Earthworm-based system provides userfriendly
data visualization and retrieval, which was adopted to
straightforwardly integrate all of the data acquired by CUMAS
with the land data, which is managed by a similar system.
Following the results of a previous investigation performed
using two ocean-bottom seismometers that were deployed in
Pozzuoli Bay (Vassallo et al. 2008), CUMAS was deployed in a
site that was selected to improve the performance of the present
seismic network in terms of the detection threshold of the local
seismicity and of hypocenter errors.
CUMAS will provide long time-series data that will allow,
for the first time, the study of the evolution of the volcanic
activity and related phenomena in the marine sector of the
Campi Flegrei caldera, which to date has only been investigated
on the basis of land data. CUMAS is the first node of a marine
network that is at present the subject of a feasibility study that
will cover most of the submerged Campi Flegrei volcanic area
and will be integrated into the local monitoring systems.
Description:
Published
Description:
203-213
Description:
1.4. TTC - Sorveglianza sismologica delle aree vulcaniche attive
Description:
JCR Journal
Description:
reserved
Keywords:
Campi Flegrei
;
Marine Instruments
;
Volcano Monitoring
;
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
;
04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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