TUNAMI INFORMATION PROVIDING METHOD AND TUNAMI INFORMATION PROVIDING SYSTEM

WIPO Patent Application WO/2007/007728

A1

Sea level change data measured by an offshore sea level measuring apparatus (21) is sent to a tunami analysis center (23) where frequency components of the wave are extracted. If the wave height of an extracted frequency component is above a predetermined threshold, the wave is judged to be tunami. The magnitude of the tunami is predicted from the wave height at 90-degree phase of the frequency component. At the time of the judgment and the prediction, the occurrence of the tunami and the magnitude of the tunami are outputted as tunami information. Furthermore, the period of the tunami is predicted from the arrival time up to the 90-degree phase and the predicted period is outputted as tunami information. The outputted tunami information is provided to local governments (6) in areas to be evacuated via a data distribution center (4). With this, most adequate tunami warning information can be issued quickly and step by step to the residents.

NAGAI TOSHIHIKO
MORITANI NOBUO
IZUMI HIROAKI
TERADA YUKIHIRO

PCT/JP2006/313708

January 18, 2007

July 10, 2006

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PORT AND AIRPORT RES INST (JP)
COASTAL DEV I OF TECHNOLOGY (JP)
JAPAN WEATHER ASS (JP)
HITACHI SHIPBUILDING ENG CO (JP)
NAGAI TOSHIHIKO
MORITANI NOBUO
IZUMI HIROAKI
TERADA YUKIHIRO

G08B21/10; G01C13/00; G01W1/00; G01W1/10; G08B31/00

JPH1164051A	1999-03-05
JPH10122860A	1998-05-15
JPH09145366A	1997-06-06
JPH08292273A	1996-11-05

MORIMOTO, Yoshihiro (4th Floor 10-10, Nishi-Hommachi 1-chome, Nishi-ku, Osaka-sh, Osaka 05, JP)

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