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Homestake Meeting Minutes, 06/01/17

Attending: Andrew, Gary, Levi, Pat, Ross, Victor, Vuk, Daniel, Michael

Agenda:

• Next Meeting: June 29
• Data analysis topics
  • Data corrections, frame production (Gary/Daniel/Pat)
    • final checks (Pat/Gary/Daniel)
    • Pat created frames at UMN, doing checks, looks done now. Should be at CIT early next week, will discuss with admins there on the details.
    • Will discuss with Gary how to handle calibration records (instrument response gain). Using files Daniel and Gary got from IRIS.
  • Event catalog (Gary/Ross)
    • Gary will try to use slowness for location recovery. Working on code for this.
  • Radiometer updates (Pat, Levi)
    • Pat: looking for a different pixelization on sphere, looking at how to assess how well the recovery is done. Transferring a technique from gravitational-wave field.
  • Parameter estimation for Rayleigh and Love (Pat/Levi)event r-wave check
  • Teleseismic events and Wiener filtering (Daniel, Michael)

• Papers
  • Homestake Array Summary paper: pdf
    • Leads: Vuk, Gary, Victor
    • target: Seism. Research Lett., 6000 words, 10 figures.
    • Vuk: made changes to reflect discussion from last week. Things to do:
      • References
      • Brief local geology discussion in introduction?
      • Figure updates? At least Figure 4, maybe others.
      • Further discussion of Figures 6 and 7?

• Active excitation overview paper
  • Leads: Gary, Ross
  • Others: Victor, Daniel,…
  • Will try to add a draft by Apr 13.

• Surface Active Excitation
  • Leads: Victor, Boise
  • Others: Gary, Ross

• Underground Active Excitation:
  • Lead: Gary, Ross

• Parameter estimation for the Rayleigh and Love eigenfunctions (amplitude vs depth dependence).
  • Leads: Pat, Daniel
  • Also contributing: Victor, Vuk, Levi

• Estimating directional and modal composition of the seismic noise. (Pat, Levi, Vuk)
  • Leads: Pat, Vuk, Levi

• Wiener filter application
  • Leads: Jan, Michael

• Teleseismic EQs and near-surface scattering
  • Leads: Daniel, Victor

• Time-variable velocity changes
  • Lead: Victor, not started yet

• Very low frequency harmonics (Ross)