Application of TWGrid Application of TWGrid on Taiwan Seismology - - PowerPoint PPT Presentation

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Application of TWGrid Application of TWGrid on Taiwan Seismology - - PowerPoint PPT Presentation

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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,

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SLIDE 1

Application of TWGrid Application of TWGrid

  • n Taiwan Seismology
  • n Taiwan Seismology

Wen Wen-

  • Tzong Liang

Tzong Liang1

1 Wei

Wei-

  • Long Ueng

Long Ueng2

2 Eric Yen

Eric Yen2

2

1. 1.

Institute of Earth Sciences, Academia Sinica, Taiwan Institute of Earth Sciences, Academia Sinica, Taiwan

2. 2.

Academia Sinica Grid Computing Centre, Taiwan Academia Sinica Grid Computing Centre, Taiwan wtl@earth.sinica.edu.tw wtl@earth.sinica.edu.tw http:// http://dmc.earth.sinica.edu.tw dmc.earth.sinica.edu.tw

ISGC 2006

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SLIDE 2

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

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SLIDE 3

Taiwan Earthquake Activity Taiwan Earthquake Activity

ISGC 2006

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SLIDE 4

B Broadband roadband A Array in rray in T Taiwan for aiwan for S Seismology eismology ( (BATS BATS) )

  • Since 1995
  • by IES and CWB

(since 2001)

  • > 50 stations
  • Real-time
  • Open data

ISGC 2006

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SLIDE 5

IES Seismic Arrays IES Seismic Arrays

Huang, 2006 SMA CMA S-Line SMART1 Taipei Stations ISGC 2006

  • 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

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SLIDE 6

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/ … …

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SLIDE 7

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 => Data Grid – – reliable, scalable, efficient reliable, scalable, efficient

  • Intensive Computing/ Web Service

Intensive Computing/ Web Service

=> Computing Grid => Computing Grid

SeisGrid SeisGrid

ISGC 2006

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SLIDE 8

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

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SLIDE 9

TEC Data Center Portal Architecture TEC Data Center Portal Architecture

Data Grid

Waveform and CMT Databases

ISGC 2006 Archiving Sharing Presentation Relevant datasets

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SLIDE 10

TEC SRB TEC SRB-

  • based Digital Library

based Digital Library

TEC Community Library TEC Community Library SRB SRB-

  • based Digital Library

based Digital Library

  • 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 Outputs Seismogram Retrieval Quick Focal Mechanism Determination Inversion of Slip Distribution on Fault Plane Waveform Simulation 1999 Chi-Chi Taiwan Earthquake ISGC 2006

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SLIDE 11

Web-Based Portal User Interface Web-Based Portal User Interface SRB-based Digital Library SRB-based Digital Library Job repository Job repository User/Grid Proxy Manager User/Grid Proxy Manager Virtual Queuing System Virtual Queuing System Grid Agent Grid Agent Grid Computing Element Grid Computing Element CWB IESAS

Sensors

SeisGrid SeisGrid Architecture Architecture

ISGC 2006

Data Data Acquisition Acquisition Archiving/Sharing Archiving/Sharing Data Grid Data Grid Grid Grid Computing Computing Element Element

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SLIDE 12

Data Requesting System Data Requesting System

ISGC 2006

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SLIDE 13

Data Product Visualization Data Product Visualization

Date ML

Subduction Subduction

3D Taiwan Seismicity

VRML vs. Web3D Viewer

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SLIDE 14

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

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SLIDE 15

Quick BATS CMT Solution Quick BATS CMT Solution

ISGC 2006 http://bats.earth.sinica.edu.tw

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SLIDE 16

ISGC 2006 S.-J. Lee, 2006

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SLIDE 17

Finite Source Inversion and 3D Finite Source Inversion and 3D Wave Propagation Wave Propagation

ISGC 2006 S.-J. Lee, 2005

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SLIDE 18

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

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SLIDE 19

N S.-J. Lee, 2006

  • 3D Velocity Structure
  • Surface Topography

ISGC 2006

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SLIDE 20

Taipei Basin S.-J. Lee, 2006

  • High frequency

High frequency seismic wave seismic wave modeling modeling (~1 Hz)

(~1 Hz)

ISGC 2006

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SLIDE 21

S.-J. Lee, 2006

Taipei Basin Taipei Basin

Ilan Plain

ISGC 2006

Seismic Hazard Seismic Hazard Mitigation Mitigation

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SLIDE 22

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 efficient and reliable real-

  • time data acquisition systems

time data acquisition systems 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

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SLIDE 23

The End!

ISGC 2006

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SLIDE 24

1973~1991 (IES) 1990~ (CWB) Short-period Seismic Array > 70 stations

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SLIDE 25

T Taiwan aiwan S Strong trong M Motion

  • tion

I Instrumentation nstrumentation P Program rogram ( (TSMIP TSMIP) )

> 650 stations