Open AccessRole of Real-Time GNSS in Near-Field Tsunami Forecasting
Author(s) -
Yusaku Ohta,
Takuya Inoue,
Shunichi Koshimura,
Satoshi Kawamoto,
Ryota Hino
Publication year - 2018
Publication title -
journal of disaster research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.332
H-Index - 18
eISSN - 1883-8030
pISSN - 1881-2473
DOI - 10.20965/jdr.2018.p0453
Subject(s) - gnss applications , warning system , satellite system , satellite , fault (geology) , estimation , real time computing , global positioning system , seismology , geology , geodesy , computer science , telecommunications , systems engineering , engineering , aerospace engineering
This short paper reviews the role of real-time global navigation satellite system (GNSS) in near-field tsunami forecasting. Recent efforts highlight that coseismic fault model estimation based on real-time GNSS has contributed substantially to our understanding of large magnitude earthquakes and their fault expansions. We briefly introduce the history of use of real-time GNSS processing in the rapid estimation of the coseismic finite fault model. Additionally, we discuss our recent trials on the estimation of quasi real-time tsunami inundation based on real-time GNSS data. Obtained results clearly suggest the effectiveness of real-time GNSS for tsunami inundation estimation as the GNSS can capture fault expansion and its slip amount in a relatively accurate manner within a short time period. We also discuss the future prospects of using real-time GNSS data for tsunami warning including effective combination of different methods for more reliable forecasting.