Articles | Volume 10, issue 6
Nat. Hazards Earth Syst. Sci., 10, 1085–1100, 2010

Special issue: The GITEWS Project (German-Indonesian Tsunami Early Warning...

Nat. Hazards Earth Syst. Sci., 10, 1085–1100, 2010

  07 Jun 2010

07 Jun 2010

A new multi-sensor approach to simulation assisted tsunami early warning

J. Behrens1,*, A. Androsov1, A. Y. Babeyko2, S. Harig1, F. Klaschka1, and L. Mentrup1,** J. Behrens et al.
  • 1Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
  • 2GFZ German Research Centre for Geosciences, Potsdam, Germany
  • *now at: University of Hamburg, KlimaCampus, Hamburg, Germany
  • **now at: GCN Consulting GmbH, Bregenz, Austria

Abstract. A new tsunami forecasting method for near-field tsunami warning is presented. This method is applied in the German-Indonesian Tsunami Early Warning System, as part of the Indonesian Tsunami Warning Center in Jakarta, Indonesia. The method employs a rigorous approach to minimize uncertainty in the assessment of tsunami hazard in the near-field. Multiple independent sensors are evaluated simultaneously in order to achieve an accurate estimation of coastal arrival times and wave heights within very short time after a submarine earthquake event. The method is validated employing a synthetic (simulated) tsunami event, and in hindcasting the minor tsunami following the Padang 30 September 2009 earthquake.