JpGU-AGU Joint Meeting 2020

Session information

[E] Oral

U (Union ) » Union

[U-04] International Efforts Supporting Global Navigation Satellite System-Enhanced Tsunami Early Warning

convener:Rundle John B(University of California Davis), Kazuyoshi Nanjo(University of Shizuoka), Eiichi Fukuyama(Kyoto University / National Research Institute for Earth Science and Disaster Resilience), Chairperson:Kazuyoshi Nanjo(University of Shizuoka), Chairperson:John B Rundle(University of California Davis), Chairperson:Eiichi Fukuyama(Kyoto University / National Research Institute for Earth Science and Disaster Resilience)

With little to no warning more than 230,000 lives were lost to the Great Indian Ocean Tsunami of December 26, 2004. This devastating loss of life focused the efforts of scientists, engineers and politicians to strengthen tsunami early warning systems beginning with an accurate and rapid estimate of tsunami potential. A combined network of seismic and geodetic sensors quickly emerged as an accurate, efficient, and cost effective enhancement to tsunami early warning systems for those at risk communities nearest the earthquake epicenter. In the months following the Great Indian Ocean Tsunami, geophysicists demonstrated that analysis the GPS network of the Global Geodetic Observing System could have provided warning within 15 minutes after the Sumatran earthquake if the network data were available in real time. On March 11, 2011, the Tohoku-oki earthquake and tsunami unleashed another terrible tragedy upon the Japanese people and posed great challenges to the Japanese government. The Tohoku-oki earthquake occurred off shore from the world's most advanced GPS network, the GEONET, designed and operated by The Geospatial Information Authority of Japan (GSI). The Tohoku-oki earthquake did underscore the potential and extraordinary societal value of Global Navigation Satellite Systems (GNSS) to tsunami warning systems. Several retrospective studies of the Tohoku-oki earthquake deformation captured by the GEONET demonstrated that accurate tsunami inundation predictions could be provided within 5 minutes of the earthquake occurrence.

In this session, we solicit papers on topics related to the realization of such a system, including instrumentation, data collection and availability, modeling, forecasting/nowcasting, and software development, as well as capacity building and linkages to international organizations, the Sendai Framework for Disaster Risk Reduction, and UN Sustainable Development Goals.

*John L LaBrecque1, Diego Arcas2, Gerald Bawden3, Allison B. Craddock4, Lorraine Hwang5, Shunichi Koshimura6, Basara Miyahara7, Yasuku Ohta8, John Rundle9 (1.Chair, IUGG Commission on Geophysical Risk and Sustainability (GeoRisk Commission), 2.NOAA Center for Tsunami Research , 3.NASA Headquarters, Natural Hazards Research and GNSS Science Team, 4.Director, Central Bureau IGS & Jet Propulsion Laboratory, 5.Director Computational Infrastructure for Geodynamics, Univ. Califorinia, Davis, 6.International Research Institute of Disaster Science, Tohoku University, 7.President, Global Geodetic Observing System & Director, Space Geodesy Div. , Geospatial Information Authority of Japan , 8.Graduate School of Science, Tohoku University, 9.Professor, Univ. California, Davis)

*Philippe Henri Lognonné1, Lucie Rolland2, Giovanni Occhinpinti1, Elvira Astafeyva1, Mala Bagiya3, Khaled Khelfi4, Virgile Rakoto4 (1.Université de Paris, Institut de physique du globe de Paris, CNRS, 2.Laboratoire Géoazur - Université de Nice Côte d'Azur Bureau 208 - Bâtiment 4 250 rue Albert Einstein 06560 Valbonne - France, 3.Indian Institute of Geomagnetism, Sector 18, Near Kalamboli Highway New Panvel(W), Navi Mumbai, 410218 India , 4.formerly at Université de Paris, Institut de physique du globe de Paris, CNRS)