Maximum initial tsunami height estimation 10 min after large earthquake using initial total electron content pulse observation

Takuma Tsuruda; Yuto Tomida; Tomoya Ishikawa; Aditya Gusman; Masashi Kamogawa

Presentation information

[JJ] Oral

H (Human Geosciences) » H-DS Disaster geosciences

[H-DS16] [JJ] Tsunami and Tsunami Forecast

Wed. May 24, 2017 1:45 PM - 3:15 PM Convention Hall A (International Conference Hall 2F)

convener:Yuichi Namegaya(Institute of Earthquake and Volcano Geology, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Naotaka YAMAMOTO(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Narumi TAKAHASHI(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Masashi KAMOGAWA(Department of Physics, Tokyo Gakugei University)

2:30 PM - 2:45 PM

[HDS16-16] Maximum initial tsunami height estimation 10 min after large earthquake using initial total electron content pulse observation

*Takuma Tsuruda¹, Yuto Tomida¹, Tomoya Ishikawa¹, Aditya Gusman², Masashi Kamogawa¹ (1.Department of Physics, Tokyo Gakugei University, 2.Earthquake Research Institute, The University of Tokyo)

Keywords:Ionospheric disturbance, Total electron content, Tsunami

Ionospheric plasma disturbances after a large tsunami can be detected by measurement of the total electron content (TEC) between a Global Positioning System (GPS) satellite and its ground-based receivers. Nine minutes after initial sea surface enhancement in tsunami, TEC pulse enhancement equatorialward from the tsunami source area clearly appeared. In this study, we show the relationship between the TEC change and the initial tsunami height, which implies that the detection of the initial TEC pulse might contribute to tentative information of initial tsunami height.