A response function approach for rapid far-field tsunami forecasting
Abstract
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.
Cite
@article{arxiv.1812.01627,
title = {A response function approach for rapid far-field tsunami forecasting},
author = {Elena Tolkova and Dmitry Nicolsky and Dailin Wang},
journal= {arXiv preprint arXiv:1812.01627},
year = {2018}
}
Comments
36 pages, 22 figures