TSUNAMI WARNING SYSTEM

 INTRODUCTION  WHAT IS TSUNAMI  ABOUT TSUNAMI WARNING SYSTEM  TYPES OF TSUNAMI WARNING SYSTEM  TSUNAMIMETER  TSUNAMI DETECTION ALGORITHM  THEROTICAL PRESSURE SERIES  CONCLUSION

Tsunami warning system (TWS) is a system to detect tsunamis and issue warnings to prevent loss of life and property. It consists of two equally important components: a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to permit evacuation of coastal area INTRODUCTION

Tsunami is the Japanese name given to large waves that sometimes devastated the shores and ports of Japan. Tsunamis have very long wavelengths. Crest to crest they measure between 10 and 500 km and they travel through the ocean at more than 700 km/h. Sometimes there appears to be just one wave but often there are multiple waves travelling a few minutes apart WHAT IS TSUNAMI

Tsunamis strike without warning.The resulting damage can be maintained and lives can saved if the people living near the coastal areas are already prepared to survive the strike. This requires a warning system. The type discussed here is Deep ocean Assessment and Reporting of Tsunamis {DART}. Each DART station consists of a seafloor Bottom Pressure Recording {BPR} package that detects pressure changes caused by tsunamis and a surface Buoy which receives transmitted information from BPR via an acoustic link. TSUNAMI WARNING SYSTEM ABOUT

There are two distinct types of tsunami warning systems: INTERNATIONAL and REGIONAL. Both depend on the fact that, while tsunamis travel at between 500 and 1,000 km/h (around 0.14 and 0.28 km/s) in open water, earthquakes can be detected almost at once as seismic waves travel with a typical speed of 4 km/s (around 14,400 km/h). TYPES OF TSUNAMI WARNING SYSTEM

FREQUENCY RESPONSE

Small amplitude tsunamis observed by internally recording gauges in the north pacific. Relative to the high-passed data, the background noise in the difference series is either equal in amplitude or slightly enhanced. Neither tsunami high enough in amplitude to set a DART gauge into rapid reporting mode. OBSERVED TSUNAMI

Time taken to warn people by conventional method is too high. So we have devised a method using GSM technique. This GSM based alert system monitors the sea waves using the Tsunamimeter and broadcasts an alert message to towns and villages through the cell phone network existing throughout the state. COMMUNICATING THE DANGER

When SMS is sent from the mobile handset, it first goes to the SMS of the mobile network, then to the destination receiver handset. This is possible if the SMS server of the mobile network is programmed for such a facility. In fact, this type of facility already exists in the GSM network in the form of ‘cell broadcast’. DECISION SYSTEM

The Tsunami warning center senses tsunami, transits these discrete magnitude values to central place via GSM cell phone network, and uses computer-based decision making to deliver alert signals to the identified receivers placed at different towns and cities for both public and government consumption. CONCLUSION

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