National Institute of Geophysics and Volcanology
MOIST - Multidisciplinary Oceanic Information SysTemNot a member yet
90 research outputs found
Sort by
Monna, Stephen. (2009). Seismometer dataset (Guralp CMG-40T @ 100 Hz) from INGV/GEOSTAR seafloor platform during ESONET-NOE-LIDO project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textTB
Embriaco, Davide. (2009). Pressure gauge dataset (Paroscientific 8CB-4000-I @ 1 sample / 15 sec) from INGV/GEOSTAR seafloor platform during ESONET-NOE-LIDO project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textThe dataset contains absolute pressure values measured by the Paroscientific 8CB-4000-I installed on the sea-bottom station GEOSTAR in the Gulf of Cadiz. Data are sampled at 15 seconds and with a resolution of 0.01 mbar. Pressure data were used to real time monitor the sea water level for tsunami warning purpose in the Gulf of Cadiz area. The data were analysed by a dedicated algorithm running on GEOSTAR which is able to detect a tsunami wave travelling on the sea surface and corresponding to few centimetres of sea water level changes
Embriaco, Davide. (2007). Pressure gauge dataset (Paroscientific 8CB-4000-I @ 1 sample / 15 sec) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textThe dataset contains absolute pressure values measured by the Paroscientific 8CB-4000-I installed on the sea-bottom station GEOSTAR in the Gulf of Cadiz. Data are sampled at 15 seconds and with a resolution of 0.01 mbar. Pressure data were used to real time monitor the sea water level for tsunami warning purpose in the Gulf of Cadiz area. The data were analysed by a dedicated algorithm running on GEOSTAR which is able to detect a tsunami wave travelling on the sea surface and corresponding to few centimetres of sea water level changes. Pressure data were recorded from 25 August 2007 until 6 April 2008. The record presents one gap of around 10 hours the day 18 October 2007 when the acquisition was stopped due to maintenance operation on the GEOSTAR site. In the remaining period the data recorded are the 99.8 % of the expected samples
Lo Bue, Nadia. (2007). ADCP dataset (RDI WorkHorse 300 kHz @ 1 profile / hour) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textADCP velocity profiles were obtained with 3m vertical resolution through a 300 kHz Workhorse ADCP unit mounted in a upward looking configuration on one side of the GEOSTAR station free from any possible obstacle. The record lasted one year with an hourly sampling rate providing current data of water column above the station. ADCP current profiler allowed to monitor the hydrodynamic condition of a water column only 50 m high, because of the lack of big quantity of particle matter necessary to scatter the acoustical signal. The record series is complete and continue through all period of measurement
Lo Bue, Nadia. (2007). Current meter dataset (Nobska MAVS-3 @ 5 Hz) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textHigh-frequency current meter (MAVS3 made by NOBSKA manufacturer) was mounted on GEOSTAR to collect data with high sampling rate. It provided punctual current measurements to monitoring the hydrodynamic condition inside the station. The high sampling rate (5Hz) was used in order to better observe possible influences of seawater currents on seismological data. More than 10GB of data were collected during one year of measurements. The record is periodically affected by the lack of few seconds of data. On the whole, about the 95% of data were well recorded
De Caro, Mariagrazia. (2007). Gravimeter dataset (IFSI (INAF) Prototype #2 @ 1 Hz) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), 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 GEOSTAR deep-sea multidisciplinary observatory in the Gulf of Cadiz (Portugal). The dataset contains relative values of gravity acceleration measured with sensitivity close to 10^-9 g/sqrt(Hz) in the range from 10^-5 to about 1 Hz. The instrument performs measurements of the Earth gravity acceleration due to low ground movements (tides) and fast ground movements (seismic wave propagation). The gravimeter acquired from August 27, 2007 to August 15, 2008 with a break of acquisition from 18/07/2008 to 15/08/2008 and 12 hours among 17-18/10/2007. The data are stored in a total of 326 daily binary files (~220 MB). The gravity meter has successfully recorded different teleseismic events with an high S/N ratio
Lo Bue, Nadia. (2007). CTD dataset (SBE 16plus @ 1 sample / hour) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textThe dataset contains sea bottom Conductivity, Temperature and Pressure data (about 1 m above the bottom) acquired through a SBE 16 plus installed on GEOSTAR station. The collection period ranges from August 2007 through July 2008. CTD and turbidity meter have been used in order to monitoring possible variations of bottom sea water masses in an area strongly interested by the mixing of different water masses (Mediterranean and Atlantic waters). The series is complete and continue through all period of measurement, without gap of data or relevant sensor problem
Monna, Stephen. (2007). Seismometer dataset (Guralp CMG-40T @ 100 Hz) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textThis digital database comprises seismological data recorded during the EC NEAREST project by a 3 component broadband seismometer. The sensor was installed on the GEOSTAR deep-sea multidisciplinary observatory, in the Gulf of Cadiz (Portugal). In the same vessel together with the seismometer there was an accelerometer. Both sensors were connected to a 24 bit digitizer, and their time reference came from an external rubidium clock connected to the digitizer. The seismometer was part of a prototype of tsunami early warning system together with a pressure meter on board GEOSTAR. Also, the sensor was used together with the other 25 OBS deployed in the NEAREAST experiment, to better define the local seismic sources and tectonic structures. The data series is complete for all working sensors (see problems below), 95 % of expected bytes has been recorded. Strong long period disturbance on seismometer and accelerometer channels due to continuous re-centring of levelling platform (144 s recurrence period) due to Guralp electronics
Lo Bue, Nadia. (2007). Turbidity meter dataset (ECO-BB(RT)D 6000m @ 1 sample / hour) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), part of EMSO network.
No full textTurbidity measurements were provided by means of an auxiliary turbidity meter sensor (made by WetLabs manufacturer) connected to the CTD probe. The collection period ranges from August 2007 through July 2008. CTD and turbidity meter have been used in order to monitoring possible variations of bottom sea water masses in an area strongly interested by the mixing of different water masses (Mediterranean and Atlantic waters). Turbidity measurement also provides information about possible resuspension of particle matter due to bottom currents. The series is complete and continue through all period of measurement, without gap of data or relevant sensor problem
De Caro, Mariagrazia. (2005). 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 textThe dataset contains relative values of gravity acceleration measured by a prototype of gravity meter, with sensitivity close to 10^-9 g/sqrt(Hz) in the range from 10^-5 to about 1 Hz. The prototype was developed at the Istituto di Fisica dello Spazio Interplanetario (IFSI) of the National Institute of Astro-Physics (INAF). In a multidisciplinary approach the continuous gravimetric measurements with other available data could help to better understand the dynamics of Etna volcanic system. The gravimeter acquired with a sampling rate of 1 Hz. The mission has some data gaps. When gravimetric data are available, they are of good quality in S/N sense