<div dir="ltr"><span id="gmail-docs-internal-guid-c930167e-7fff-0df7-a726-1f14ba7c3252" style="color:rgb(0,0,0)"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Several sessions of interest to the SZ4D community will take place at the 2022 Fall AGU Meeting, December 12-16, in Chicago and online. </span>See below for more details.</p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><b>Abstract submission now open.</b></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><b><a href="https://agu.confex.com/agu/fm22/prelim.cgi/Home/0">Submit an abstract</a></b></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><b>Deadline: 3 August 2022 23:59 EDT/03:59 +1 GMT</b></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-style:italic;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Not seeing your session? Send us an email at </span><a><span style="font-family:Arial;color:rgb(17,85,204);font-style:italic;font-variant-ligatures:normal;font-variant-east-asian:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap">contact@sz4d.org</span></a><span style="font-family:Arial;font-style:italic;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> and we’ll include it to the next listserv.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><a href="https://agu.confex.com/agu/fm22/prelim.cgi/Session/162091" style="text-decoration:none"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><font size="4">NH019 - Performance, Progress, and Promotion of Earthquake Early Warning Worldwide</font></span></a></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Conveners: Elizabeth S Cochran (U.S. Geological Survey), Danielle Sumy (Incorporated Research Institutions for Seismology), Jessie K Saunders (Caltech), Sara McBride (U.S. Geological Survey), Amy L Williamson (UC Berkeley)</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">In 1993, Mexico initiated the first earthquake early warning (EEW) system with public alerting. The United States, Japan, Taiwan, India, Romania, Israel, Italy, New Zealand, and others are now in various stages of development and deployment of EEW systems. EEW pushes the frontiers of science and engineering yet is an inherently social and humanitarian effort to protect people and key infrastructure from the effects of strong ground shaking. EEW alerts must be issued quickly to provide actionable warning; thus, we must find novel solutions to detect, characterize, and communicate expected shaking based on limited observations. This session explores innovations in data acquisition and telemetry; geophysical algorithm developments that determine alert regions; and education and messaging tailored to mitigate risk and meet societal needs. We welcome abstracts on the intersection of earthquake science, engineering, technology, education, and social science that improve the reliability and utility of EEW systems.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><a href="https://agu.confex.com/agu/fm22/prelim.cgi/Session/157245" style="text-decoration:none"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><font size="4">V020 - Volcano Seismology and Acoustics: Recent Advances in Understanding Volcanic Processes</font></span></a></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Conveners: Oliver D Lamb (University of North Carolina at Chapel Hill), Helen A Janiszewski</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(University of Hawaii at Manoa), Jacqueline Caplan-Auerbach (Western Washington University), Josh A Crozier (USGS California Volcano Observatory)</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Hazardous phenomena at volcanoes include ash plumes, gas emissions, explosions, pyroclastic density currents, lava flows, lahars, and mass wasting. All of these processes produce seismic and acoustic signals that can provide key real-time information for assessing hazardous surface and atmospheric activity. We can also gain insights into the structure and activity state of volcanoes by identifying and tracking the movement of subsurface magma and hydrothermal fluids using seismicity and seismic imaging techniques. Recent advances in seismo-acoustic instrumentation, deployment techniques, and data analysis have promoted more precise characterization and quantification of the physical mechanisms leading to and accompanying volcanic phenomena. Thus, volcano seismology and acoustics remains a rapidly developing area of research. We welcome submissions that present new seismic, infrasound, and hydroacoustic observations, interpretations, models, instrumentation, or techniques that improve our understanding of volcanic processes and assist future monitoring efforts.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Invited speakers are Ettore Biondi from Caltech and Julia Gestrich from the University of Alaska Fairbanks.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><a href="https://agu.confex.com/agu/fm22/prelim.cgi/Session/161936" style="text-decoration:none"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><font size="4">T017 - Subduction Top to Bottom (ST2B) — Origin and Evolution of Magmatic Arcs</font></span></a></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Conveners: </span>Gray E Bebout (Lehigh University), David William Scholl (University of Alaska Fairbanks), Robert J Stern (University of Texas at Dallas), Ikuko Wada (University of Minnesota Twin Cities)</p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">To the SZ4D community,</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">This is an advertisement for a session on the Origin and Evolution of Magmatic Arcs to be run at the Fall 2022 AGU meeting in Chicago (Dec. 12-16).<br></span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">This session is a part of the Subduction Top to Bottom venture, the latter in which we stress multidisciplinary approaches to study of subduction processes. This pursuit recently resulted in a Themed Issue with 74 papers at the journal GEOSPHERE (all Open Access):</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><a href="https://pubs.geoscienceworld.org/geosphere/pages/st2b2">https://pubs.geoscienceworld.org/geosphere/pages/st2b2</a></span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">We seek multidisciplinary perspectives on the processes leading to the formation and evolution of magmatic arcs (field/geological, geophysical, geochemical, experimental, theoretical). We encourage you to consider participating in this session - the abstract deadline is August 3.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Session description: The ST2B pursuit highlights and fosters multidisciplinary research on subduction margins, gathering scientists representing the full array of approaches and perspectives. In this session, we focus attention on factors and processes leading to arc magmatism, both modern and ancient, aimed at refining our understanding of primary forcing factors (including structural controls) for the production and positioning of arcs and exploring the great diversity in arc systems. We hope to sponsor discussion of all aspects of arc evolution, including but not limited to the impact of forearc dynamics, the nature of the subduction interface, slab devolatilization and melting, the physical and chemical characteristics of slab/sediment-derived “fluids,” mantle wedge thermal, rheological, and chemical evolution, the role of diapirs, and whole-margin volatiles cycling. We hope to stimulate discussion among geodynamic modelers, geophysicists, geochemists, and experimentalists, and to engage those investigating ancient arc magmatism and Earth’s long-term history of subduction.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Invited speakers:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Christy Till (Arizona State University)</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Leif Karlstrom (University of Oregon)</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><a href="https://agu.confex.com/agu/fm22/prelim.cgi/Session/161922" style="text-decoration:none"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><font size="4">GC076 - Science and Technology towards Achieving Surface Topography and Vegetation Structure Measurements</font></span></a></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Conveners: Andrea Donnellan (Jet Propulsion Laboratory, California Institute of Technology</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Convener), Craig L Glennie (University of Houston)</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">The 2017 Decadal Survey for Earth Science and Applications from Space identified the Surface Topography and Vegetation (STV) as a targeted observable for maturation.  STV will acquire high-resolution, global height measurements, including bare surface land topography, ice topography, vegetation structure, and shallow water bathymetry. These measurements will serve a broad range of science and applications objectives that span solid earth, cryosphere, biosphere and hydrosphere disciplines.  A common set of measurements could meet many of the community needs serving a wide array of disciplines. STV objectives would be best met by new observing strategies that employ flexible multi-source and sensor measurements from a variety of orbital and sub-orbital assets. Science and application objectives focusing on Solid Earth, Vegetation Structure, Cryosphere, Hydrology, and Coastal Processes would be best met by new, 3-dimensional observations from lidar, radar, and stereo photogrammetry. Simulations, experiments, data analysis and technology development in interferometric SAR, lidar and stereo photogrammetry approaches, platform options and system architectures will all mature STV toward an observing system. This session invites submissions on science and technology maturation activities for STV. The complete STV report from the first incubation study team can be found at <a href="https://science.nasa.gov/earth-science/decadal-stv/">https://science.nasa.gov/earth-science/decadal-stv/</a></span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><a href="https://agu.confex.com/agu/fm22/prelim.cgi/Session/157747" style="text-decoration:none"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><font size="4">T002 - Comparative investigations of Slow-to-Fast Earthquakes: Observations, Experiments, and Numerical Modeling</font></span></a></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Conveners: Yoshihiro Ito (Disaster Prevention Research Institute, Kyoto University, Laura M Wallace (University of Texas at Austin), Matt Ikari (MARUM, University of Bremen), Victor M Cruz-Atienza (Universidad Nacional Autónoma de México)</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Both slow and fast ruptures on faults are commonly observed in a variety of tectonic environments worldwide. This session aims to identify the factors that control such slow and fast ruptures using data obtained from seismic and geodetic observations, geological fieldwork, laboratory experiments, and numerical modeling. We welcome multidisciplinary contributions that undertake comparisons among different subduction margins and other plate boundary environments to reveal the physical processes that control slow vs. fast earthquakes, and the linkages between these phenomena. By distinguishing both global and regional factors controlling the slow and fast rupture processes, an ultimate goal is to develop a conceptual model explaining their occurrence. In addition to investigations focused on fault slip, we also welcome contributions revealing slow vs. fast deformation processes in landslide and glacial environments, as these may provide important analogues to increase understanding.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><a href="https://agu.confex.com/agu/fm22/prelim.cgi/Session/157148" style="text-decoration:none"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><font size="4">T011 - Multiscale Crustal Deformation in Subduction Zones and the Megathrust Earthquake Cycle: Progress from Observations and Models</font></span></a></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Conveners: Haipeng Luo (McGill University), Matthew W Herman (California State University Bakersfield), Aron J Meltzner (Nanyang Technological University), Donna J Shillington (Northern Arizona University)</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;font-variant-ligatures:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">The timescales of deformation in subduction zones span seconds to millions of years. Associated with these timescales is a spectrum of deformation behavior, from elastic to permanent brittle or ductile. The patterns of slip on the plate boundary throughout the megathrust earthquake cycle and the rheology of crust and mantle are central to this deformation. There is also a complex relationship between short- and long-term deformation processes. Observations from modern seismology, geodesy, paleogeodesy, geophysics, and geology along with advances in modeling capabilities are revealing the details of these processes. As a result, there is much new understanding of the crustal deformation at subduction margins across time and space in association with megathrust coupling/slip and subduction zone rheology along with other tectonic and non-tectonic processes. We welcome submissions on all aspects of crustal deformation to explore the geodynamic processes governing earthquake cycles and the long-term evolution of the subduction margins.</span></p><br><br></span></div>