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Antelope as a Platform for Data Exchange

Antelope as a Platform for Data Exchange. Nozomu Takeuchi. (University of Tokyo). Outline. Brief introduction for seismic observations conducted by Japanese institutes. 1. - Which kinds of data are available?. - Who are we?. 2. Introduction of our project on data exchange.

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Antelope as a Platform for Data Exchange

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  1. Antelope as a Platform for Data Exchange Nozomu Takeuchi (University of Tokyo)

  2. Outline Brief introduction for seismic observations conducted by Japanese institutes. 1. - Which kinds of data are available? - Who are we? 2. Introduction of our project on data exchange

  3. Domestic Station Distributions in Japan High Sensitivity Sensors Broadband Sensors Colors denote the institutes managing that station.

  4. Domestic Seismic Observation System before Kobe Earthquake The Ministry of Transport The Prime Minister’s Office The Ministry of Education NIED JMA Universities (National Research Institute for Earth Science and Disaster Prevention) (Japanese Meteoro- logical Agency) Networks for monitoring Networks for research Networks for disaster management

  5. Domestic Seismic Observation System after Kobe Earthquake Headquarters of Earthquake Res. Promotion NIED JMA Other institutions Universities data exchange

  6. Data Exchange Among Institutions (Unfortunately, we are not using Antelope here.)

  7. waveform display, picking the arrival times, hypocenter determinations, and others GUI for

  8. real time determination of moment tensors Grid MT http://wwwic.eri.u-tokyo.ac.jp/GRID_MT

  9. automatic tremor monitoring system ATMOS http://tremor.geol.sci.hiroshima-u.ac.jp/ (in Japanese)

  10. Availability of Domestic Data (slightly oversimplified) (*) J-Array http://jarray.eri.u-tokyo.ac.jp Hi-net http://www.hinet.bosai.go.jp (Japanese) F-net http://www.fnet.go.jp K-net http://www.k-net.bosai.go.jp Kik-net http://www.kik.bosai.go.jp * available upon requests fundamental earthquake observation networks

  11. Fundamental Earthquake Observation Networks • The necessities are defined by • governmental policies. • Funding is relatively guaranteed. • homogeneous station distribution. • homogeneous instrumentations.

  12. Fundamental Earthquake Observation Networks • high data quality. Well maintained. • All data should be open to public. Hi-net, Kik-net F-net borehole observations vault with 30-50 m depth VBB sensors

  13. International Networks by Japanese Institutions • Aiming at the Pacific regions. • Constructed by competitive funds. OHP 1996-2001 Grand-in-aid for Scientific Research Special Coordination Funds for the promotion of Sci. and Tech. SPANET 1996-2000

  14. Network Maintainance OHP by IFREE/JAMSTEC and ERI/U. Tokyo SPANET by NEID PSI station (OHP) NRFK station (SPANET) • The Management expense • grants are used for operations. • Some stations have a vault • but some do not. • VBB sensors for some • stations but BB sensors • for another stations.

  15. Available International Data • All continuous data are open to the public. • All data are provided in SEED format. OHP http://ohpdmc.eri.u-tokyo.ac.jp SPANET http://www.isn.bosai.go.jp

  16. Stations of Global Networks • currently available stations ●IRIS GSN, GEOSCOPE ●OHP

  17. Stations of Global Networks and Various National Networks • currently available stations • open to the public via the • IRIS DMC Wang and Niu (2010) ●IRIS GSN, GEOSCOPE ●OHP, F-net, NECESSArray ●national network

  18. Improvements in the Resolution by Using Azimuthal Dependency ScS reflection pointsfor SE-NW paths

  19. Improvements in the Resolution by Using Azimuthal Dependency ScS reflection points for N-S paths

  20. Improvements in the Resolution by Using Azimuthal Dependency ScS-S residuals for N-S paths

  21. Improvements in the Resolution by Using Azimuthal Dependency ScS-S residuals for N-S paths

  22. OHP Data Collection System

  23. OHP Data Exchange System

  24. OHP Data Exchange System (future plan)

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