<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Colleagues:<br><br>We would like to draw your attention to a special session S06 at the Fall AGU<br>meeting on “temporal Earth-monitoring with seismic waves”. We encourage you to<br>submit an abstract focusing on observations, interpretations, theoretical<br>contributions and technical issues of the different approaches with the goal to<br>advance on the way to 4D Seismology. The deadline for abstract submission is<br>September 10th, 2008. Please feel free to forward to your colleagues that would<br>be interested in this topic. Thank you very much.<br><br>S06: Monitoring Temporal Changes of Earth's Properties with Seismic Waves<br><br>Sponsor: Seismology<br><br>CoSponsor: Geodesy; Mineral and Rock Physics; Tectonophysics; Volcanology,<br>Geochemistry, and Petrology<br><br>Description: Traditionally, seismic waves were used to investigate the 3D<br>velocity and attenuation structure of the Earth. The detection of temporal<br>changes in the structure was out of reach. Recently, technical and<br>methodological developments led to a number of observations of such temporal<br>changes. The main targets are volcanoes, fault zones, and hydrocarbon<br>reservoirs. In most cases changes of the seismic velocities are monitored.<br>Techniques range from repeated structural studies like tomography or seismic<br>surveys to interferometric approaches that are specifically designed for the<br>detections of temporal changes. The latter group uses repeating earthquakes,<br>repeatable active sources like vibrators or ambient noise.<br><br>The observed velocity changes are attributed to migrating fluids, to seismicity<br>induced stress changes or to structural changes like damage in a near surface<br>layer.<br><br>To this session we invite contributions on temporal Earth-monitoring with<br>seismic waves. We want to focus on observations and their interpretations. But<br>we also want to discuss theoretical contributions and technical issues of the<br>different approaches with the goal to advance on the way to 4D Seismology.<br><br>06: Monitoring Temporal Changes of Earth's Properties with Seismic Waves<br>Sponsor: Seismology<br><br>CoSponsor: Geodesy<br>Mineral and Rock Physics<br>Tectonophysics<br>Volcanology, Geochemistry, and Petrology<br><br>Convener: Christoph Sens-schoenfelder<br>University of Leipzig<br>DEU<br><a href="mailto:sens-schoenfelder@uni-leipzig.de">sens-schoenfelder@uni-leipzig.de</a><br><br>Florent Brenguier<br>Institut de Physique du Globe de Paris<br>FRA<br><a href="mailto:fbrengui@ipgp.jussieu.fr">fbrengui@ipgp.jussieu.fr</a><br><br>Tom Daley<br>Lawrence Berkeley National Laboratory<br>USA<br><a href="mailto:tmdaley@lbl.gov">tmdaley@lbl.gov</a><br><br>Zhigang Peng<br>Georgia Institute of Technology<br>311 Ferst Drive<br>Atlanta, GA, USA 30338<br>404-894-0231<br><a href="mailto:zpeng@gatech.edu">zpeng@gatech.edu</a><br><br><br><br>----------------------------------------------------<br>Dear Colleagues:<br>We would like to draw your attention to a special session S15 at the Fall AGU<br>meeting on “Seismological Investigations of the 2008/05/12 Ms8.0 Wenchuan<br>Earthquake”. This disastrous event was felt throughout the Eastern Asia, and was<br>responsible for killing at least 70 thousand people, and leaving around 5<br>million homeless. We invite contributions that take advantage of dense seismic<br>observations to study the mainshock slip distributions, aftershock locations,<br>local fault zone structures, regional-scale seismic tomography, near-field and<br>remote triggering, future seismic hazard in the surrounding region, and more.<br><br>The deadline for abstract submission is September 10th, 2008. Please feel free<br>to forward to your colleagues that would be interested in studying this<br>earthquake. Thank you very much.<br><br>Description: <span class="Apple-tab-span" style="white-space: pre; "> </span>The 2008/05/12 Ms8.0 Wenchuan earthquake occurred in Eastern<br>Sichuan, China. It ruptured more than 300 km along the Longmenshan<br>fold-and-thrust belt that bounds the Tibetan plateau and the Sichuan basin. This<br>disastrous event was felt throughout the Eastern Asia, and was responsible for<br>killing at least 70 thousand people, and leaving around 5 million homeless. The<br>mainshock and its rigorous aftershock sequences were recorded by many permanent<br>and temporary seismic stations deployed by Chinese Earthquake Administration and<br>other institutions at local and regional distances, and the Global Seismic<br>Network and USArray at teleseismic distances. This session invites contributions<br>that take advantage of the dense seismic observations to study the mainshock<br>slip distributions, aftershock locations, local fault zone structures,<br>regional-scale seismic tomography, near-field and remote triggering, future<br>seismic hazard in the surrounding region, and more.<br><br>S15: <span class="Apple-tab-span" style="white-space: pre; "> </span>Seismological Investigations of the 2008/05/12 Ms8.0 Wenchuan Earthquake<br>Sponsor: <span class="Apple-tab-span" style="white-space: pre; "> </span>Seismology<br><br>CoSponsor: <span class="Apple-tab-span" style="white-space: pre; "> </span>Geodesy, Tectonophysics<br><br>Convener: <span class="Apple-tab-span" style="white-space: pre; "> </span>Zhigang Peng<br>Georgia Institute of Technology<br>311 Ferst Drive<br>Atlanta, GA, USA 30332<br>404-894-0231<br><a href="mailto:zpeng@gatech.edu">zpeng@gatech.edu</a><br><br>Qiyuan Liu<br>Chinese Earthquake Administration<br>CHN<br><a href="mailto:qyliu@ies.ac.cn">qyliu@ies.ac.cn</a><br><br>Chen Ji<br>UC Santa Barbara, Dept. of Earth Sciences<br>Santa Barbara, CA, USA<br><a href="mailto:ji@geol.ucsb.edu">ji@geol.ucsb.edu</a><br><br><br><br>--<br>Zhigang Peng<br>Assistant Professor<br>School of Earth and Atmospheric Sciences<br>The Georgia Institute of Technology<br>ES&T Building, Rm. 2256<br>311 Ferst Drive<br>Atlanta, GA, 30332-0340<br>Phone: 404-894-0231<br>Fax: 404-894-5638<br>Email: <a href="mailto:zhigang.peng@eas.gatech.edu">zhigang.peng@eas.gatech.edu</a><br>----- End forwarded message -----<br><br><br>--<br>Zhigang Peng<br>Assistant Professor<br>School of Earth and Atmospheric Sciences<br>The Georgia Institute of Technology<br>ES&T Building, Rm. 2256<br>311 Ferst Drive<br>Atlanta, GA, 30332-0340<br>Phone: 404-894-0231<br>Fax: 404-894-5638<br>Email: <a href="mailto:zhigang.peng@eas.gatech.edu">zhigang.peng@eas.gatech.edu</a><div><br></div><div><br></div></body></html>