Thread: REMINDER: Long-Term Seafloor Seismographs SIG at AGU - Dec 13, 4 - 5:30 p.m.

Started: 2017-12-04 17:37:17
Last activity: 2017-12-04 17:37:17
Topics: AGU Meetings
IRIS is pleased remind you about aSIG 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)

Information about the charge of the WGLTSS is available at
http://www.iris.edu/hq/about_iris/governance/wgltss

A document submitted by Guust Nolet on the "Mermaid Systems" is also
available at http://www.iris.edu/hq/files/LTSS-SIG-Nolet-1.pdf

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 18M1]months.
    a) What can we observe over 5 years that we cannot observe over 18
months?
    b) What can we observe over 10 years that we cannot observe over 5
yearM2]?
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?
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

--

Katrin Hafner

Incorporated Research Institutions for Seismology (IRIS)
IRIS GSN Program Manager

Phone: (509)899-5449
e-mail: hafner<at>iris.edu
http://www.iris.edu/hq/programs/gsn


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