Case study of Tsunami warning system using RTK GPS method

摘要

A reliable Tsunami detection system is vital importance in protecting mankind from disasters. Real Time Kinematic-Global Positioning System (RTK-GPS) is considered to be the promising GPS techniques due to its reliability and accuracy to minimize complexity in establish and maintenance with existing BPR. In the present study we have used RTK-GPS to find the sea water elevation difference in the detection of tsunami. Comparison is done between tsunami height data obtained from coastal tidal stations/offshore wave stations by using green's law with data obtained from RTK-GPS system and tsunami frequency spectrum are separated from actual tidal wave observation Another added advantage of this method is that it also produces a reliable estimate of the destructive potential of a tsunami within minutes of detection before tsunami reaches the coastal areas. By developing a global tsunami warning system utilizing an expanded network of coastal GPS stations may be effective in detection of tsunamis.