Long-Term Seafloor Seismographs SIG at AGU

Wednesday, November 15, 2017

IRIS is pleased to announce a SIG meeting on Long-Term Seafloor Seismographs (LTSS) to be held at the 2017 AGU Fall Meeting in New Orleans.

The scientific needs of global and regional seismology require long-term (2 to 5+ years, ~permanent), high-quality, telemetered seismic observations from key seafloor sites in order to complement existing high-quality permanent stations on land.

The LTSS SIG is scheduled for Wednesday, December 13th from 4-5:30 pm Dauphine I & II rooms of the Hampton Inn & Suites / New Orleans Conference Center, and is being hosted by the WGLTSS (IRIS Working Group on Long-Term Seafloor Seismographs)

This SIG will provide an opportunity for community members who are interested in the deployment of "long-term" high-quality broadband seismic stations on the seafloor. Planned topics of discussion include:

  1. Review of current proposed and planned seafloor station or array deployments, including length of deployments, relevant to long-term, continuous monitoring.
  2. Review of potential scientific targets and observations, e.g. recording seismic phases, great earthquakes, etc.
  3. How long does a site need to be continuously occupied to gather enough relatively short-period mantle and core phase data from large earthquakes?
  4. Discussion of scientific observations that require deployments longer than 18 months.    
    • What can we observe over 5 years that we cannot observe over 18 months?    
    • What can we observe over 10 years that we cannot observe over 5 years?
  5. Pros and cons of short-term "arrays of stations" versus deploying one high-quality station for a longer period of time.
  6. What array configurations are needed to see the details of large-scale deep earth structures that have been partially resolved with global tomography?

Those interested in attending are asked to reply to this message [e-mail to Katrin Hafner - hafner (at) iris (dot) edu] so that we may get an approximate head count for catering and room setup.  Responses before Thanksgiving would be greatly appreciated. Information about the charge of the WGLTSS is available at http://www.iris.edu/hq/about_iris/governance/wgltss

Thanks, and we hope to see you there!

Monica Kohler, WGLTSS Chair
Jeffrey Park, GSN SC Chair