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Lo Bue, Nadia. (2004). Current meter dataset (FSI 3D-ACM @ 2 Hz) from INGV/GEOSTAR - SN-3 seafloor platform during ORION-GEOSTAR3 project in Southern Tyrrhenian Sea site (Marsili Basin), part of ORION network.
No full textFalmouth 3D-ACM 3 axis acoustic current meter, a high-accuracy meter with vector-averaged current speed and direction. The high sampling rate (2Hz) was used in order to better observe possible influences of seawater currents on seismological data
Lo Bue, Nadia. (2003). CTD dataset (SBE 16 @ 1 sample / hour) from INGV/GEOSTAR - SN-3 seafloor platform during ORION-GEOSTAR3 project in Southern Tyrrhenian Sea site (Marsili Basin), part of ORION network.
No full textThe dataset contains sea bottom Conductivity, Temperature and Pressure data (about 1 m above the bottom) acquired through a SBE 16 installed on GEOSTAR - SN-3 station. CTD is used in order to monitoring possible variations of bottom sea water masses in the area
Lo Bue, Nadia. (2003). ADCP dataset (RDI WorkHorse 300 kHz @ 1 sample / hour) from INGV/GEOSTAR - SN-3 seafloor platform during ORION-GEOSTAR3 project in Southern Tyrrhenian Sea site (Marsili Basin), part of ORION network.
No full textThe Acoustic Doppler Current Profiler measures the water velocity using the physical Doppler shift principle. The transducer generates a pulse of sound at a known frequency that travels through the water and is reflected in all directions by particulate matter (e.g., sediment, biological matter, bubbles). Some portion of the reflected energy travels back at the transducer where the processing electronics measure the change in frequency. The Doppler shift measured by the transducer reflects the velocity of the water along the axis of the acoustic beam. The ADCP operates using three transducers generating beams with different orientations relative to the water flow then the measured velocity by each ADCP transducer is the projection of the 3D velocity onto the axis of its acoustic beam
Lo Bue, Nadia. (2003). Transmissometer dataset (Ctg Alphatracka II @ 1 sample / hour) from INGV/GEOSTAR - SN-3 seafloor platform during ORION-GEOSTAR3 project in Southern Tyrrhenian Sea site (Marsili Basin), part of ORION network.
No full textAlphatracka II is a transmissometer that measures the beam attenuation coefficient at 660 nm
Lo Bue, Nadia. (2003). Current meter dataset (FSI 3D-ACM @ 2 Hz) from INGV/GEOSTAR - SN-3 seafloor platform during ORION-GEOSTAR3 project in Southern Tyrrhenian Sea site (Marsili Basin), part of ORION network.
No full textFalmouth 3D-ACM 3 axis acoustic current meter, a high-accuracy meter with vector-averaged current speed and direction. The high sampling rate (2Hz) was used in order to better observe possible influences of seawater currents on seismological data
Monna, Stephen. (2002). Seismometer dataset (Guralp CMG-1T @ 100 Hz) from INGV/NEMO-SN1 seafloor platform during GNDT-SN1 project in Western Ionian Sea site (East Sicily), part of EMSO network.
No full textThis digital database comprises seismological data recorded during the GNDT 1 project by a 3 component broadband seismometer, together with a hydrophone. The sensor was installed on the GEOSTAR deep-sea multidisciplinary observatory, offshore of the Eastern coast of Sicily (Southern Italy) at a depth of 2071 m. The seismometer is installed in a dedicated vessel integrated in a separate structure connected to the observatory via a special mechanical release. To guarantee a good coupling with the sea bottom, the structure is disconnected just after the observatory touch-down and kept linked to the frame by a slack rope (Favali et al., 2006). The sensor was connected to a 24 bit digitizer, and its time reference came from an external rubidium clock connected to the digitizer. This project's main objective was to establish the first node, off-shore eastern Sicily, of multiparameter seafloor observatories which include a seismometer. Long-term broad-band seismic measurements from this site is of great interest given its proximity to the Etna volcano (~ 50 km) and to offshore seismogenic structures where some of the most destructive earthquakes, some of which accompanied by tsunamis, have occurred in Italy
Lo Bue, Nadia. (2002). Current meter dataset (FSI 3D-ACM @ 2 Hz) from INGV/NEMO-SN1 seafloor platform during GNDT-SN1 project in Western Ionian Sea site (East Sicily), part of EMSO network.
No full textFalmouth 3D-ACM 3 axis acoustic current meter, a high-accuracy meter with vector-averaged current speed and direction
Monna, Stephen. (2002). Hydrophone dataset (OAS E-2PD @ 100 Hz) from INGV/NEMO-SN1 seafloor platform during GNDT-SN1 project in Western Ionian Sea site (East Sicily), part of EMSO network.
No full textThis digital database comprises data recorded from the hydrophone during the GNDT 1 project. The hydrophone was installed on the frame of the GEOSTAR deep-sea multidisciplinary observatory, deployed offshore of the Eastern coast of Sicily (Southern Italy) at a depth of 2071 m.The sensor was connected to a 24 bit digitizer, and its time reference came from an external rubidium clock connected to the digitizer, and synchronized with the seismometer. As this site is of great interest given its proximity to the Etna volcano (~ 50 km) and to important offshore seismogenic structures, the main purpose of the hydrophone is to record seismic data in combination with the seismometer
De Caro, Mariagrazia. (2002). Gravimeter dataset (IFSI (INAF) Prototype #1 @ 1 Hz) from INGV/NEMO-SN1 seafloor platform during GNDT-SN1 project in Western Ionian Sea site (East Sicily), part of EMSO network.
No full textA prototype of gravity meter built at the Istituto di Fisica dello Spazio Interplanetario (IFSI) of the National Institute of Astro-Physics (INAF) was installed on the SN1 deep-sea multidisciplinary observatory, offshore of the Eastern coast of Sicily. The gravity meter provides measurements of variation of the vertical component of the acceleration with respect to an initial reference value. The comparison between seismic signal with the continuous gravimetric measurement can help to characterise different styles of the Etna volcanic activity. The gravity meter acquires one sample per second in continuous mode. The data show a good signal to noise ratio (S/N)
Lo Bue, Nadia. (2002). CTD dataset (SBE 37-SM @ 1 sample / 12 min) from INGV/NEMO-SN1 seafloor platform during GNDT-SN1 project in Western Ionian Sea site (East Sicily), part of EMSO network.
No full textoai:www.moist.it:dataset-22The dataset contains sea bottom Conductivity, Temperature and Pressure data (about 1 m above the bottom) acquired through a SBE 37-SM installed on SN-1 station. The collection period ranges from October 2002 through February 2003. CTD has been used in order to monitoring possible variations of bottom sea water masses in the area. The sensor pressure shows anomalous trend although tidal oscillations are correct. The probe was changed for the next SN1 campaign