HR: 1330h
AN: S42B-0157    [PDF]
TI: Latest Development of Real-Time Strong-Motion Monitoring System in Taiwan
AU: * Hsiao, N
EM: naigi@scman.cwb.gov.tw
AF: Central Weather Bureau, 64 Kung Yuan Road, Taipei, 100 Taiwan
AU: Wu, Y
EM: ym.wu@socmail.cwb.gov.tw
AF: Central Weather Bureau, 64 Kung Yuan Road, Taipei, 100 Taiwan
AU: Shin, T
AF: Central Weather Bureau, 64 Kung Yuan Road, Taipei, 100 Taiwan
AU: Teng, T
AF: University of Southern California, University of Southern California, Los Angeles, CA 90089-0740 United States
AB: Based on the experience of the 1999 Chi-Chi Earthquake, the Central Weather Bureau (CWB) has made substantial improvements to the earthquake rapid report system. Besides the current use of digital lease phone line and internet transmission, the satellite link for station to center is setup for backup. The station is also equipped with UPS to prevent the failure of electricity power. This backup link system is designed as automatically switching in case of ground link interrupted. On the other hand, two real-time seismic sub-network are deployed stand alone at Hualein (East coast of Taiwan) and Tainan (south Taiwan) stations separately. The sub-network only manipulates real-time seismic data of nearby stations to shorten the procession time. The configuration and function of sub-network can be monitored and changed by Taipei center through computer link. Results from sub-network can be sent to Taipei center simultaneously. The collective use of these redundant systems significantly improves the capability and reliability of seismic emergency response. It will provide more robust foundation to develop earthquake early warning system. To safeguard train transportation from a disaster earthquake, the CWB assists Taiwan Railway Administration (TRA) to establish a seismic alert system including 44 3-component accelerographs along the track of the round-the-island Taiwan railway system. The configuration of the system is similar to the use of sub-network of CWB. It becomes the third backup of earthquake report system. In addition, ground vibration of a TRA instrument exceeds 180 gals, the power of the railway will be automatically cut-off to slow down the nearby train.
DE: 7200 SEISMOLOGY
DE: 7212 Earthquake ground motions and engineering
DE: 7223 Seismic hazard assessment and prediction
DE: 7294 Instruments and techniques
SC: Seismology [S]
MN: 2003 Fall Meeting