ISGC 2006 Application of TWGrid Application of TWGrid on Taiwan Seismology on Taiwan Seismology 1 Wei 2 Eric Yen 2 Wen- Wen -Tzong Liang Tzong Liang 1 Wei- -Long Ueng Long Ueng 2 Eric Yen 2 Institute of Earth Sciences, Academia Sinica, Taiwan Institute of Earth Sciences, Academia Sinica, Taiwan 1. 1. Academia Sinica Grid Computing Centre, Taiwan Academia Sinica Grid Computing Centre, Taiwan 2. 2. wtl@earth.sinica.edu.tw wtl@earth.sinica.edu.tw http:// http://dmc.earth.sinica.edu.tw dmc.earth.sinica.edu.tw
ISGC 2006 Outline Outline � Taiwan Earthquake Activity Taiwan Earthquake Activity � � Integrated Seismic Data Center Integrated Seismic Data Center � � Computational Seismology Computational Seismology � � TWGrid vs. Taiwan Seismological Community TWGrid vs. Taiwan Seismological Community � � Examples Examples � � Summary Summary �
ISGC 2006 Taiwan Earthquake Activity Taiwan Earthquake Activity
ISGC 2006 Broadband roadband B Array in rray in A Taiwan for aiwan for T Seismology eismology S (BATS BATS) ) ( • Since 1995 • by IES and CWB (since 2001) • > 50 stations • Real-time • Open data
ISGC 2006 IES Seismic Arrays IES Seismic Arrays Taipei Stations SMA CMA S-Line SMART1 • Continuous or triggered data streams Continuous or triggered data streams • • 100 100- -250 samples/sec 250 samples/sec • • 3 3- -6 channels/station 6 channels/station • Huang, 2006
Characteristics of Seismological Data Characteristics of Seismological Data � Continuous/triggered recordings Continuous/triggered recordings � � High sampling rate (100 ~250 High sampling rate (100 ~250 sps sps) ) � � Multi sensor (BH/ BL/ SP) Multi sensor (BH/ BL/ SP) � � 3 components 3 components � � Co Co- -site geophysical measurements site geophysical measurements � � GPS/ GPS/ Magnetotelluric Magnetotelluric/ Geomagnetic/ Gravity/ / Geomagnetic/ Gravity/ � Strainmeter / … Strainmeter / … � Other data products/ scientific results Other data products/ scientific results � � Seismicity/ Tomography/ Seismogenic structures/ Seismicity/ Tomography/ Seismogenic structures/ … … �
ISGC 2006 Integrated Seismic Data Center Integrated Seismic Data Center � Data Acquisition and Archiving Data Acquisition and Archiving � � Huge amount of seismic waveform data Huge amount of seismic waveform data � � Other relevant datasets Other relevant datasets � � On On- -Line Data Sharing Line Data Sharing � � Grid portal/ SRB Grid portal/ SRB- -based Digital Library based Digital Library � � Presentation/Visualization Presentation/Visualization � => Data Grid – – reliable, scalable, efficient reliable, scalable, efficient => Data Grid � Intensive Computing/ Web Service Intensive Computing/ Web Service � => Computing Grid => Computing Grid SeisGrid SeisGrid
ISGC 2006 Taiwan Earthquake Research Center Taiwan Earthquake Research Center (TEC) (TEC) Objectives: Objectives: � Approved by NSC in 2005 Approved by NSC in 2005 � � Integrating resources for seismologists Integrating resources for seismologists � � Web service to researchers Web service to researchers � � Project Management/ RFP Project Management/ RFP � � TEC Instrument Pool TEC Instrument Pool � � TEC Data Center TEC Data Center � � Outreach/Education Outreach/Education �
ISGC 2006 TEC Data Center Portal Architecture TEC Data Center Portal Architecture Archiving Sharing Presentation Data Grid Relevant datasets Waveform and CMT Databases
ISGC 2006 TEC SRB- -based Digital Library based Digital Library TEC SRB Quick Focal Outputs Waveform Mechanism Simulation Determination TEC Community Library TEC Community Library Seismogram Retrieval Inversion of Slip 1999 Chi-Chi Distribution on Taiwan Fault Plane SRB- -based Digital Library based Digital Library SRB Earthquake � 9 Terabytes of on 9 Terabytes of on- -line disk line disk � � More than 100 Terabytes of tape archive More than 100 Terabytes of tape archive �
ISGC 2006 SeisGrid Architecture Architecture SeisGrid Web-Based Portal User Interface Data Data Web-Based Portal User Interface Archiving/Sharing Archiving/Sharing Acquisition Acquisition Data Grid Data Grid Grid Grid User/Grid User/Grid Job repository Job repository Proxy Manager Proxy Manager Computing Computing Element Element SRB-based Digital Library SRB-based Digital Library IESAS Virtual Queuing Virtual Queuing Sensors System System Grid Agent Grid Agent CWB Grid Computing Element Grid Computing Element
ISGC 2006 Data Requesting System Data Requesting System
Data Product Visualization Data Product Visualization 3D Taiwan Seismicity Date ML VRML vs. Web3D Viewer Subduction Subduction
ISGC 2006 Computing Needs Computing Needs � Focal mechanism inversion (CMT) Focal mechanism inversion (CMT) � � Seismogenic structure/ Earthquake pattern Seismogenic structure/ Earthquake pattern � � Finite source inversion Finite source inversion � � Slip distribution on the fault Slip distribution on the fault � � Earthquake physics Earthquake physics � � Simulation of seismic wave propagation Simulation of seismic wave propagation � � Seismic source mechanism inversion Seismic source mechanism inversion � � Shake map prediction Shake map prediction �
ISGC 2006 Quick BATS CMT Solution Quick BATS CMT Solution http://bats.earth.sinica.edu.tw
ISGC 2006 S.-J. Lee, 2006
ISGC 2006 Finite Source Inversion and 3D Finite Source Inversion and 3D Wave Propagation Wave Propagation S.-J. Lee, 2005
ISGC 2006 Seismic Wave Propagation Seismic Wave Propagation � SAFE SAFE- -Taipei project (Urban Seismology) Taipei project (Urban Seismology) � � Collaboration between IES and Caltech Collaboration between IES and Caltech � � Spectral Spectral- -Element Method (SEM) Element Method (SEM) IPGP/Europe � IPGP/Europe � Considering: Considering: � � Near Near- -field waveform modeling field waveform modeling � � Higher frequency Higher frequency - -> Higher resolution > Higher resolution - -> Higher computing need > Higher computing need � � 3D Velocity Structure 3D Velocity Structure � � 3D Source Model 3D Source Model � � Surface Topography Surface Topography � � Example #1 Example #1 (S. (S.- -J. Lee, 2006) J. Lee, 2006) � � Example #2 Example #2 ( (S. S.- -J. Lee, 2006 J. Lee, 2006) ) �
ISGC 2006 N • 3D Velocity Structure • Surface Topography S.-J. Lee, 2006
ISGC 2006 Taipei Basin • High frequency High frequency • seismic wave seismic wave modeling (~1 Hz) modeling (~1 Hz) S.-J. Lee, 2006
ISGC 2006 Taipei Basin Taipei Basin Seismic Hazard Seismic Hazard Mitigation Mitigation Ilan Plain S.-J. Lee, 2006
ISGC 2006 Summary Summary � Modern development of seismic instrumentation, IT Modern development of seismic instrumentation, IT � and communication make it possible to establish an and communication make it possible to establish an efficient and reliable real- -time data acquisition systems time data acquisition systems efficient and reliable real and virtual data centers. and virtual data centers. � Huge amount of seismic data archiving/sharing play as Huge amount of seismic data archiving/sharing play as � the basis of the modern seismological research. the basis of the modern seismological research. � Demands in rapid seismic data sharing and processing Demands in rapid seismic data sharing and processing � require intensive collaboration between Taiwan require intensive collaboration between Taiwan seismological community and TWGrid. seismological community and TWGrid. � SeisGrid SeisGrid concept is proposed to meet the future need. concept is proposed to meet the future need. �
ISGC 2006 The End!
1973~1991 (IES) 1990~ (CWB) Short-period Seismic Array > 70 stations
Taiwan aiwan T Strong trong S Motion otion M Instrumentation nstrumentation I Program rogram P (TSMIP TSMIP) ) ( > 650 stations
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