Coast. Eng. J. 2007.49:63-76. Downloaded from www.worldscientific.com by UNIVERSITY OF QUEENSLAND on 02/03/15. For personal use only. 64 T. Nagai et al.
Development and improvement of the International TsunamiMonitoring System is getting more important after the 2004 Sumatra-Off-Earthquake Tsunami disaster. Till now, tsunami monitoring system has been developed and established based on observation network of strong ground motion only. Nevertheless, earthquake vibration data may give us incorrect tsunami forecasting, for the strength of the vibration and the tsunami energy are not exactly proportional. Therefore, offshore and coastal direct tsunami-wave profile observation system should be included in the monitoring system. This paper introduces basic design of the future tsunami monitoring system using newly developed GPS buoy system and other coastal and on-site sensors. Method of real-time tsunami data processing system is also introduced.
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