TY - GEN

T1 - Localization of the tsunami source area for effective warning with the given sensor position

AU - Kuzakov, Dmitry

AU - Lavrentiev, Mikhail

AU - Marchuk, Andrey

N1 - Funding Information: This research was supported by the project FSUS-2020-0034 of the Russian Ministry of Science and University Education. Publisher Copyright: © 2020 IEEE. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2020/10/5

Y1 - 2020/10/5

N2 - In case of strong earthquake offshore Japan, tsunami wave approaches the nearest coast in approximately 20 minutes. So, time required for evaluation of tsunami danger is the key parameter for any warning system. The authors propose to determine the parameters of initial sea surface displacement at tsunami source (initial data to simulate numerically wave propagation) by only a part of the measured tsunami wave time series. The necessary part of wave profile is determined by tracking the relative changes of source parameters. Determination of the tsunami source parameters is conducted by the orthogonal decomposition of synthetic time series, calculated in advance. By a number of numerical experiments mutual position of the initial disturbance zone (as well as the earthquake epicenter) and the sensor are determined. It is expected that the proposed approach will save time (up to few minutes) for security and evacuation measures.

AB - In case of strong earthquake offshore Japan, tsunami wave approaches the nearest coast in approximately 20 minutes. So, time required for evaluation of tsunami danger is the key parameter for any warning system. The authors propose to determine the parameters of initial sea surface displacement at tsunami source (initial data to simulate numerically wave propagation) by only a part of the measured tsunami wave time series. The necessary part of wave profile is determined by tracking the relative changes of source parameters. Determination of the tsunami source parameters is conducted by the orthogonal decomposition of synthetic time series, calculated in advance. By a number of numerical experiments mutual position of the initial disturbance zone (as well as the earthquake epicenter) and the sensor are determined. It is expected that the proposed approach will save time (up to few minutes) for security and evacuation measures.

KW - initial sea surface displacement

KW - orthogonal decomposition

KW - tsunami source

UR - http://www.scopus.com/inward/record.url?scp=85104637168&partnerID=8YFLogxK

U2 - 10.1109/IEEECONF38699.2020.9389451

DO - 10.1109/IEEECONF38699.2020.9389451

M3 - Conference contribution

AN - SCOPUS:85104637168

T3 - 2020 Global Oceans 2020: Singapore - U.S. Gulf Coast

BT - 2020 Global Oceans 2020

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2020 Global Oceans: Singapore - U.S. Gulf Coast, OCEANS 2020

Y2 - 5 October 2020 through 30 October 2020

ER -