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INGV: Leader PI: Paolo Favali

This project aims to detect tsunami signals near shore using a seafloor observatory transmitting real-time data to shore. Tasks include upgrading hardware, testing, and integration for a year-long mission. Partners contribute to marine site selection, sensor requirements, and software development.

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INGV: Leader PI: Paolo Favali

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  1. INGV: LeaderPI: Paolo Favali NEAREST WP4 NEAREST kick-off Meeting 9-11 October, 2006 - Bologna

  2. WP4 - Tsunami signal detection Objectives The WP is aimed at carrying out geophysical and oceanographic measurements on the seafloor and in the water column in the nearby of near-shore tsunamigenic sources for the identifications of tsunami signals. The seafloor and water column measurements will be performed by means of a deep seafloor multiparameter observatory of GEOSTAR type, developed in previous EC projects and will be transmitted to shore in real-time (some essential parameters).

  3. Methodology • Use of already existing multiparameter seafloor observatory • The observatory will be managed by MODUS (Partner TFH)

  4. Seismometer Hydrophone • Specific set of sensors: -seismometer, • -hydrophone, • -differential pressure gauge • for cross-checking of different signals 3D-ACM DPG other sensors ? • Unique time reference for easy comparison of the signals

  5. The seafloor observatory will locally perform processing according to specifications identified by the partners • A surface buoy, will perform real-time transmission of seafloor processing results to a shore station for data integration • The buoy will be equipped with meteo and oceanographic sensor packages as well

  6. Work to be done (1/2) • Selection of new sensors • Upgrading of the hardware and software of the Data Acquisition and Control System (DACS) • Upgrading of the real-time communications (new protocol ?) • Overall integration • Tests (use of already available signals, synthetic signals, etc.)

  7. Deep sea long-term mission (about 1 year, R/V Urania): input from WP1 (Tsunami source identification) and WP2 (Tsunami source characterisation) Integration of seismic data in the marine data-base of the OBS data (WP3 – seismological monitoring) Work to be done (2/2)

  8. Partners involved WP4 ISMAR-BO.FFCUL, CSIC  marine site selection and characterisation for the pilot experimenton the basis of the knowledge of the area ISMAR-BO cruises responsible AWI, UGR, IM  common requirements of sensor sampling rates TFH  MODUS for the pilot experiment (deployment/recovery)

  9. Task 4.1 Definition of sensor requirements and sensor selection; requirements of the detection software (e.g., detection algorithm, triggering threshold, messages). Task 4.2 Design and development of modifications (e.g., sensor supports of the frame); design and development of the software. Task 4.3 Integration of new sensors/devices and new software in the seafloor observatory, tests of the functionality in laboratory. Task 4.4 Preparation planning and implementation of a long-term (about 1 year) mission; cruises for deployment and recovery. Task 4.5 Data back-up, quality checks, preparation of the data base to be integrated with other data; pre-analysis of ‘parent’ tsunami signals.

  10. WP4 Deliverables m 4 m 8 m 11 m 11 m 12 m 24 m 24 D10 definition of sensors’, software requirements for the deep-sea platform D11 detailed design for the integration of new sensors and device in the deep-sea platform D12 integration of new sensors, test of functionality of the deep-sea platform D13 deployment procedure for the deep-sea platform D14 deployment cruise of the deep-sea platform and cruise report D15a recovery cruise of the deep-sea platform and data quality checks D15b cruise report

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