A Response Function Approach for Rapid Far-Field Tsunami Forecasting

Predicting tsunami impacts at remote coasts largely relies on tsunami en-route measurements in an open ocean. In this work, these measurements are used to generate instant tsunami predictions in deep water and near the coast. The predictions are generated as a response or a combination of responses...

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Bibliographic Details
Published inPure and applied geophysics Vol. 174; no. 8; pp. 3249 - 3273
Main Authors Tolkova, Elena, Nicolsky, Dmitry, Wang, Dailin
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.08.2017
Springer Nature B.V
Subjects
Coastal environments
Convolution
Deep water
Earth and Environmental Science
Earth Sciences
Earthquake forecasting
Earthquake prediction
Earthquakes
Geophysics/Geodesy
Hindcasting
Impact prediction
Seismic activity
Tables
Technology
Time measurement
Tsunami forecasting
Tsunamis
Weather forecasting
Tsunami
forecast
boundary value problem
pulse response function
source inversion
DART station
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Summary:Predicting tsunami impacts at remote coasts largely relies on tsunami en-route measurements in an open ocean. In this work, these measurements are used to generate instant tsunami predictions in deep water and near the coast. The predictions are generated as a response or a combination of responses to one or more tsunameters, with each response obtained as a convolution of real-time tsunameter measurements and a pre-computed pulse response function (PRF). Practical implementation of this method requires tables of PRFs in a 3D parameter space: earthquake location–tsunameter–forecasted site. Examples of hindcasting the 2010 Chilean and the 2011 Tohoku-Oki tsunamis along the US West Coast and beyond demonstrated high accuracy of the suggested technology in application to trans-Pacific seismically generated tsunamis.
ISSN:0033-4553
1420-9136
DOI:10.1007/s00024-017-1612-0