From ljhwang at ucdavis.edu Sun Sep 10 10:27:36 2017 From: ljhwang at ucdavis.edu (Lorraine Hwang) Date: Sun, 10 Sep 2017 10:27:36 -0700 Subject: [CIG-ALL] Upcoming CIDER Workshop (Dec 10, 2017, New Orleans) and 2018 Summer program -please mark your calendars Message-ID: <1BE1F849-3A15-4466-8E32-E12F8DEB8B29@ucdavis.edu> We wish to bring to your attention two upcoming CIDER events: 1) The pre-AGU CIDER workshop will take place at Tulane Univ., close to the location of the AGU meeting, on sunday December 10th, 2017, from 1.30 to 5.30 pm. It will feature keynote talks by Christy Till, Kerry Key and Paul Asimow on themes related to the 2017 and 2018 summer program, as well as presentations by research groups formed during the 2017 CIDER summer program. The workshop is open to all, and in particular those of you that haven't been to CIDER yet and are curious about it. A registration page is under construction: http://www.deep-earth.org//preagu2017.shtml 2) The 2018 CIDER Summer Program will take place at KITP, UC. Santa Barbara, from July 9th to August 3rd, 2018. The theme will revisit that of the first CIDER program in 2004: "Relating geochemical and geophysical heterogeneity in the deep Earth". An application page is under construction: http://www.deep-earth.org/summer18.shtml For more information, please contact Barbara Romanowicz (barbara at seismo dot berkeley dot edu), Bruce Buffett (bbuffett at berkeley dot edu), or Dan A Frost (dafrost at seismo dot berkeley dot edu). Regards Barbara Romanowicz, Dan Frost and Bruce Buffett -------------- next part -------------- An HTML attachment was scrubbed... URL: From Danielle.Sumy at iris.edu Thu Sep 14 11:09:42 2017 From: Danielle.Sumy at iris.edu (Danielle Sumy) Date: Thu, 14 Sep 2017 14:09:42 -0400 Subject: [CIG-ALL] IRIS WEBINAR: Accurate Seismic Event Location: A Question of Context, 9/20 at 2 PM Eastern Message-ID: <749451BF-A238-4D14-8E8B-635AE733689D@iris.edu> Please register for Accurate Seismic Event Location: A Question of Context on September 20, 2017 2:00 PM EDT at: https://attendee.gotowebinar.com/register/3142479384355569409 Presented by: Steven J. Gibbons, Senior Research Geophysicist, NORSAR Abstract: A great amount of global seismicity occurs in regions with very limited station coverage and significant error in estimates for seismic traveltimes can lead to considerable event mislocation and a very blurred image of seismicity. We present case studies in which modern probabilistic event location algorithms provide dramatically improved images of the distribution of seismic events. So-called precision seismology has vastly improved relative event location estimates over short distances for which waveform similarity is observed. For example, the declared nuclear tests in North Korea can be located relative to each other to within an accuracy of less than hundreds of meters. However, we can demonstrate that the outgoing wavefield is more complicated than is assumed in most double-difference type location estimates. Precision seismology will improve greatly if it can encompass the progress made in the context-based multiple event location algorithms and account for deviations from the applied models resulting from features on smaller length scales than we are currently able to model. Bio: Gibbons works as a research geophysicist within the programme for Array Seismology and Test-Ban-Treaty Verification at NORSAR. His primary research interests are array processing for seismic signals and full waveform methods for improving the detection capability in the seismic monitoring of nuclear explosions. He is also interested in improving location estimates for seismic events on scales from microseismic, local, regional, and global. After registering, you will receive a confirmation email containing information about joining the webinar. PLEASE NOTE: Registration does not confirm or guarantee you will have a spot during the webinar, as we are limited to 500 participants. Please hop on the webinar early for your best chances to see the webinar live. Remember that all IRIS webinars are archived for later viewing at https://www.youtube.com/playlist?list=PLD4D607C2FA317E6D ___________________________ Danielle Sumy, PhD Seismologist Project Associate Instrumentation Services Education and Public Outreach The IRIS Consortium 1200 New York Ave. NW Washington, DC 20005 Phone: 202-407-7015 Fax: 202-682-0633 Email: danielle.sumy at iris.edu www.iris.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From c.p.conrad at geo.uio.no Thu Sep 14 14:21:12 2017 From: c.p.conrad at geo.uio.no (Clinton Phillips Conrad) Date: Thu, 14 Sep 2017 21:21:12 +0000 Subject: [CIG-ALL] 2017 CIG election nominations Message-ID: Dear CIG Community, Every year a few members of CIG's governing committees cycle off and are replaced by newly-elected members. This year, CIG thanks Omar Ghattas of Executive Committee (EC) and Jed Brown, David May, and Carl Tape of Science Steering Committee (SSC) for their service to CIG. To fill these 4 open positions, the Nominations Committee solicits suggestions from the CIG community. If you would like to nominate yourself or someone else for consideration, please send send e-mail to the Nominations committee at nominations at geodynamics.org. The Nominations committee will be considering nominations for through the end of next week (Sept 22). Thank you in advance for your nominations! Clint ---------------------------------------------- Clint Conrad Professor Centre for Earth Evolution and Dynamics (CEED) University of Oslo c.p.conrad at geo.uio.no ---------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: