management of large seismic datasets
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Management of Large Seismic Datasets S. Kasra Hosseini Zad Dr. - PowerPoint PPT Presentation

Dec 21, 2023 •161 likes •315 views

Management of Large Seismic Datasets S. Kasra Hosseini Zad Dr. Karin Sigloch Simon Sthler Dr. Tarje Nissen Meyer Special Thanks to: Robert Barsch Motivation 14080x1000x3 = ~40,000,000 waveforms = ~40,000,000 Response = 14 TB NDLB part I

  1. Management of Large Seismic Datasets S. Kasra Hosseini Zad Dr. Karin Sigloch Simon Stähler Dr. Tarje Nissen Meyer Special Thanks to: Robert Barsch

  2. Motivation 14080x1000x3 = ~40,000,000 waveforms = ~40,000,000 Response = 14 TB

  3. NDLB part I 1. Process-centric 2. Data-centric

  4. Continuous and Event-based seismograms

  5. Plots

  6. Response file u = convolution(source, earth, instrument) Response: Function of the sensor (poles and ● zeros+constant gain (vol to m/s)) Filters (analog signal to digitized sample) ● [poles and zeros] digitizers → series of low pass and decimation → output sampling rate

  7. Instrument Correction

  8. Selecting required seismograms

  9. NDLB vs rdseed+SAC

  10. Cutting TF Windows

  11. Process-centric...one example (Wadati-Benioff Zone)

  12. Thank you!

  13. Close Future! 1. STA/LTA (Short/Long Term Averaging) 2. Compute Synthetic Seismograms (AXISEM)

  14. Instrument Correction 1. RTR 2. Taper

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