Building Submarine Seismic Detection System Shang-Hsueh Yu a 、 Po-Chi Chen a 、 Jia-Pu Jang a 、 Chau-Chang Wang a,b,c 、 Ban-Yuan Kuo b a Taiwan Ocean Research.

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Presentation transcript:

Building Submarine Seismic Detection System Shang-Hsueh Yu a 、 Po-Chi Chen a 、 Jia-Pu Jang a 、 Chau-Chang Wang a,b,c 、 Ban-Yuan Kuo b a Taiwan Ocean Research Institute, National Applied Research Laboratories, Kaohsiung, Taiwan b Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan c Institute of Applied Marine Physics and Undersea Technology, National Sun Yat-sen University, Kaohsiung, Taiwan Speaker ： Yu Shang Hsueh

Motivation 2 Period ： 2010/10/17 ～ 2011/10/17 ml ≧ 2 ， Total ： 9908 From CWB

3 YARDBIRD 1.LOG: 24 bit/4ch 、 sample rate: 100Hz 、 GPS time compensation 、 user interface. 2.Deployment period is 1 year, power dissipation must be less than 0.5W. 3.Currently maximum depth is 2000m 4.Leveling: Error is less than 1 ∘. Bandwidth: 4sec~40Hz. 5.Yardbird hangs flash beacon 、 radio beacon and flag for recovery. 6.Center of gravity and buoyancy for downward pose 、 rising and downward velocity. 7.Acoustic system for release and location Seismometer Buoy Acoustic system Camera Beacon Battery & Log Specifications

4 Seismometer 1. 3 perpendicular components 2. Leveling: Error is less than 1 ∘. 3.Bandwidth:4sec~40Hz.

5 Deployment Experiments

6 Recover

Local Seismic Data(1)

8 Local Seismic Data(2)

9 Teleseismic(1) 3.7 km/s3.5 km/s Qinghai earthquake, April 14, 2010 (21.917, ; depth is 1450 m)

10 MOU with KORDI in South Korea

11

12 Teleseismic(2) Magnitude 8.6 & OFF THE WEST COAST OF NORTHERN SUMATRA, April 11,2012 Yardbird deployed Korea’s East Sea Magnitude 8.6, 2.311°N, °E, 22.9 kmMagnitude 8.2, 0.773°N, °E, 16.4 km Raw data site

13 Future Works We completed 3 times long term(10 mouths) deployment and 4 times short term (2 weeks ~ 3 months) deployments successfully, and we will still continue research and development further, such as maximum depth will be extended to 6000m 、 channel numbers increase from 4 to 7 for more sensors 、 bandwidth extends from 4 s to 30 s. In order to fulfill the ultimate objective of building an engineering-, science-, and management-wise sustainable system in Taiwan, Our team will continue to work with more domestic universities and search international cooperation.

14 Thank You For Your Attention!! If more questions, please mail to our group! Mr. Chen, Po-Chi: Mr. Jang, Jia-Pu: Mr. Yu, Shang-Hsueh: