Events
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Info Session
Start:August 27, 2012
End:
August 27, 2012
Location:
RLM 4.102
Contact:
Maurine Riess, mriess@jsg.utexas.edu, 5122327673
Halliburton Info Session with Engineering
6:30-8:30 PM
RLM 4.102
4 Breakout rooms
RLM 5.114 39
RLM 5.118 40
RLM 5.120 41
RLM 5.122 41
AGS Annual Ethics Lecture: Paul Woodruff
Start:August 27, 2012 at 7:00 pm
End:
August 27, 2012 at 8:30 pm
Location:
ROC Auditorium, Bldg. 196, Pickle Research Campus
Austin Geological Society ‘s first meeting of the year.
Speaker: Paul Woodruff, inaugural dean of the School of Undergraduate Studies, speaking on his new book The Ajax Dilemma.
6:30PM refreshments, 7:00PM speaker
Lunch & Learn-Grad Students
Start:August 28, 2012
End:
August 28, 2012
Location:
Boyd Auditorium, JGB 2.234
Contact:
Maurine Riess, mriess@jsg.utexas.edu, 5122327673
Designed just for students who want to interview during fall on-campus recruiting (OCR). You will learn how to navigate GeoSource, how to prepare your resume, and receive tips for working the career fair and interviews.
Lunch will be provided by the JSG Career Center. Signup will be on Monday, August 27 in general orientation at 10:30 am.
12:00 PM (Noon) to 1:00 PM
Boyd Auditorium, JGB 2.324
Gone To Texas
Start:August 28, 2012
End:
August 28, 2012
6:30-8:00 PM
Location TBA
For new students (Freshmen and graduate students), faculty of the JSG. Dinner prior to UT-wide Gone to Texas Celebration at the Tower (8:00 pm)
Grand Opening of the Holland Family Student Center
Start:August 28, 2012 at 4:00 pm
End:
August 28, 2012 at 6:00 pm
Location:
JSG Building, 2nd Floor
Come celebrate the JSG Grand Opening of the Holland Family Student Center and the beginning of a new academic year! Explore the awesome new center, play with the ever changing globe, enjoy food, fun, and music, name the 1583 lb. Citrine.
The entire JSG community is invited – students, old and new; faculty, research scientists, staff.
Paleo Brown Bag: Chris Bell & Ernie Lundelius
Start:August 30, 2012 at 11:30 am
End:
August 30, 2012 at 12:30 pm
Location:
JGB 3.218
Title: Pleistocene paleontology in Philips Cave: Notice of a newly discovered site in Crockett County, Texas
Speaker: Dr. Ernie Lundelius, Vertebrate Paleontology Labs, and Dr. Chris Bell, The University of Texas at Austin
Info Session
Start:August 31, 2012
End:
August 31, 2012
Location:
JGB 2.112A Conference Room
Contact:
Maurine Riess, mriess@jsg.utexas.edu, 5122327673
Student Conservation Association (SCA)
3:00-4:00 pm Info on internships across the nation
JGB 2.112A Conference Room, Career Services Suite
UTIG Seminar Series: Ginny Catania, UTIG
Start:August 31, 2012 at 10:30 am
End:
August 31, 2012 at 11:30 am
Location:
PRC, Bldg. 196, Rm 1.603, 10100 Burnet Road, Austin, TX 78758
Contact:
Nick Hayman, hayman@ig.utexas.edu, 471-7721
View Event
“Understanding Variability in Ice Dynamics at the Margins of the Greenland Ice Sheet”
The margins of the Greenland Ice Sheet have undergone rapid and significant changes in recent years. This includes drawdown of the ice sheet surface, acceleration of both land and ocean-terminating ice, and retreat of outlet glaciers. Predicting the magnitude of and causes behind these changes is difficult. In part, this is because of a lack of observational data, but also because there is no consensus on the relative importance of various physical processes that control glacier changes. Much research has focused lately on the role that meltwater plays in ice sheet acceleration. Meltwater reaches the bed through moulins, which are likely formed from crevasses in locations where plentiful meltwater supply is generated. Some moulins can remain open and partially water-filled all year, which suggests that routing of meltwater to the bed remains spatially fixed for some period of time. Meltwater supplied via moulins causes ice sheet acceleration on daily, seasonal and event time scales although longitudinal flow coupling can explain many of the smaller variations in speed near and above the equilibrium line. Unlike in alpine glaciers, subglacial water pressure is out of phase with ice speed, while the water levels measured in moulins is in phase with ice speed. This suggests that the moulins are the primary pathway for getting water to the bed in Greenland and that water input through moulins drives localized fast flow. In addition to this we find that air temperature does not directly translate into increased sliding as suggested by many authors and this suggests evolution of the subglacial conduit system over time. These observations suggest that we need to model the subglacial hydrology of the Greenland ice sheet as supplied from point sources to an growing/shrinking conduit system that induces local slip events, which propagate outwards radially from the moulin.
UTIG Discussion Hour: Michael Shahin (KU)March, 19 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Special Seminar: Hongyu Sun, CaltechMarch, 19 2024Time: 11:00 AM - 12:00 PMLocation: PRC 196/ROC 1.603 Speaker: Hongyu Sun, Postdoctoral Scholar in Geophysics, California Institute of Technology Host: Benjamin Keisling Title: Next-Generation Seismic Monitoring and Imaging with Artificial Intelligence Abstract: Numerous natural hazards, such as earthquakes, volcanic activities, and landslides, are sources of seismic waves. Seismology allows us to understand and reduce the risks of these hazards by investigating the origins of the seismic waves and inferring the structure and properties of the Earth’s interior. AI has transformed seismic data analysis, elevating the role of deep learning in seismology. In this talk, I will outline my contributions to improving seismic monitoring and subsurface imaging with AI. I will first present the Phase Neural Operator (PhaseNO) for earthquake detection and seismic phase picking. PhaseNO measures the arrival times of P- and S-waves from continuous seismic data simultaneously across input stations with arbitrary geometries. By leveraging the spatial-temporal information, PhaseNO outperforms single-station AI algorithms by detecting significantly more earthquakes and enhancing measurement accuracy. Additionally, I will show how deep neural networks can overcome the complexities in seismic imaging by being trained to generate seismic waves. These waves, although not directly recorded, are essential for imaging the Earth’s interior. I will provide case studies on full-waveform inversion with active-source seismic data and seismic interferometry with environmental noise. In summary, these AI methods are powerful complements to traditional computational methods and hold significant promise for mitigating natural hazards and climate change. |
DeFord Lecture | Dr. Gabrielle Wong-ParodiMarch, 21 2024Time: 4:00 PM - 5:00 PMLocation: Boyd Auditorium (JGB 2.324) The Dynamic Relationship Between Tropical Cyclone Threats and Human Behavior by Dr. Gabrielle Wong-Parodi, Stanford Doerr School of Sustainability, Stanford University Abstract: Climate change is unpredictable and occurring more rapidly than expected, requiring people act to reduce impacts on the environment and humans. Linear models of behavior change are unsuited for understanding the dynamic relationship between psychological processes (i.e., risk perceptions, emotions) and behaviors (i.e., household preparedness, energy conservation) that unfold against the dynamic and increasing magnitude of climate change-related threats. In this talk, I present longitudinal studies examining this dynamism in the context of tropical cyclones and describe a new model of dynamic climate action. I also discuss the implication of the results for adaptation, and in the design of meaningful interventions to promote protective adaptive behavior. |
UTIG Seminar Series: Zhongwen Zhan, CaltechMarch, 22 2024Time: 3:00 PM - 4:00 PMLocation: PRC 196/ROC 1.603 NOTE: This seminar is hosted jointly with the Bureau of Economic Geology and will be held at 3pm. The seminar will be followed by a reception in the first floor UTIG lobby at 4pm. Speaker: Zhongwen Zhan, Professor of Geophysics, Seismological Laboratory, Caltech Host: Duncan Young Title: Enhancing Environmental Seismology with Fiber Optic Sensing Abstract: Fiber optic sensing has significantly advanced seismological resolution in recent years, enhancing our ability to study environmental phenomena from tectonic scales down to details as fine as tens of meters. This technological leap offers broad spatial coverage and uninterrupted temporal sampling, addressing challenges in hydrology and glaciology such as deploying and maintaining observational systems with adequate coverage and sensor density. In this lecture, I will discuss two exemplary projects: the South Pole Distributed Acoustic Sensing (DAS) array, utilizing an 8-km fiber-optic cable at the Amundsen–Scott South Pole Station, and the Indian Wells Valley DAS array, operational since 2019. These initiatives underscore the vast research potential at the intersection of fiber-optic seismology, glaciology, and hydrology, showcasing how these technologies can illuminate new paths for environmental seismology. |
Hot Science - Cool Talks: \"Breaking the Universe\"March, 22 2024Time: 5:30 PM - 8:15 PMLocation: Welch 2.224 The powerful James Webb Space Telescope allows us to see back to the beginning of time, shortly after the Big Bang, when the first stars and galaxies were only starting to form. Professor Caitlin Casey will explore with us some exciting new discoveries made using JWST during the first billion years of cosmic time. These discoveries are challenging scientists’ existing understanding about the universe itself and will change the way you see the cosmos. |
Planetary Habitability Seminar SeriesMarch, 25 2024Time: 1:00 PM - 2:00 PMLocation: PMA 15.216B UT Center for Planetary Systems Habitability Seminar Series. See website for speaker schedule and more details: View Events Join remotely: https://utexas.zoom.us/j/94052130734 In person: Classroom 15.216B, Physics, Math and Astronomy Bldg. UT Austin, Department of Astronomy 2515 Speedway, Stop C1400 Austin, Texas 78712-1205 |
UTIG Discussion Hour: Okezie Chinemerem (EER & BEG)March, 26 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Special Seminar: Sophie Coulson, University of New HampshireMarch, 26 2024Time: 11:00 AM - 12:00 PMLocation: PRC 196/ROC 1.603 Speaker: Sophie Coulson, Assistant Professor, Department of Earth Sciences, University of New Hampshire Host: David Mohrig Title: Predicting and Observing Geophysical Patterns of Sea Level Change Abstract: Rapid melting of ice sheets and glaciers drives a unique geometry, or fingerprint, of sea level change. As an ice sheet loses mass, its gravitational attraction on the nearby ocean is reduced, causing ocean water to migrate away from the ice sheet. Additionally, the solid Earth rebounds in response to the reduction in surface loading. This combination of geophysical processes leads to a sea level fall within ~2000 km of the melting ice sheet and a progressive sea level rise outside of this region. In this talk I will discuss numerical models developed to predict these patterns of sea level change and recent implications for, and conclusion drawn from, observational datasets. Specifically, I’ll explore the fingerprint of sea level change due to ice mass loss from the Greenland Ice Sheet and Arctic glaciers over the last three decades and its effect on sea surface height measurements, GPS data and earthquake hazard. |
UTIG Seminar Series: Melisa Diaz, The Ohio State UniversityMarch, 29 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Melisa Diaz, Assistant Professor, The Ohio State University Host: Benjamin Keisling |
UTIG Discussion Hour: Kaitlin Schaible (UTIG)April, 02 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Seminar Series: Chuanming Liu, UT AustinApril, 05 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Chuanming Liu, Distinguished Postdoctoral Fellow, UT Jackson School of Geosciences, Postdoctoral Fellow, University of Texas Institute for Geophysics Host: Thorsten Becker |
UTIG Discussion Hour: Soraya Alfred (UTIG)April, 09 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Seminar Series: Tanner Miller, UTIGApril, 12 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Tanner Miller, Postdoctoral Fellow, University of Texas Institute for Geophysics Host: Peter Flemings |
UTIG Seminar Series: Crispin Little, University of LeedsApril, 12 2024Time: 2:00 PM - 3:00 PMLocation: PRC 196/ROC 1.603 Join us for a special seminar with Professor Cris Little. Speaker: Crispin Little, Professor, School of Earth and Environment, University of Leeds Host: Rowan Martindale Title: Biotic response to environmental perturbations in the Pliensbachian and Toarcian stages of the Lower Jurassic Abstract: The Lower Jurassic period was characterized by instability in global climate, with alternating greenhouse and icehouse states, and episodes of widespread oxygen depletion in the shallow marine environment. These episodes of oxygen depletion are marked by frequent intervals of increased organic carbon preservation in shallow marine sediments. The Pliensbachian stage of the Lower Jurassic was characterised by significantly cooler global temperatures than the preceding Sinemurian, and the following Toarcian stages, and ended with an extinction event (notably for ammonites) at the Pliensbachian-Toarcian boundary (Pl-To) ca. 184.2 Ma. About one Myr later the Toarcian Oceanic Anoxic Event (T-OAE) is characterized Corg rich black shale successions, particularly well developed in sedimentary basins in NW Europe, which display a negative ?13Corg excursion of -5 to -6‰, lasting 0.5 to 1.5 Myr. This excursion has been tied to a disruption of the global exogenic carbon cycle, but the ultimate source of the injected 12C is a matter of debate, with suggestions including methane hydrates, thermogenic methane produced by volcanism in the Karoo-Ferrar Large Igneous Province (LIP), wetlands, and permafrost destabilisation. The onset of the T-OAE in many (but importantly not all) sections is intimately linked to an extinction event that especially impacted the marine benthic macrofauna, but left the nekton largely unaffected. The recovery from this event is not well studied, but in one site, the Cleveland Basin of North Yorkshire, UK, although species richness recovered markedly as soon as environmental conditions ameliorated, other metrics of functional diversity and community structure did not attain pre-extinction levels until much later, some five million years after the extinction event. The talk will be of interest to those working on macroevolution, paleontology, and the effect of large scale climate change on marine ecosystems. |
UTIG Discussion Hour: Medha Prakash (UTIG)April, 16 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Seminar Series: Emma \"Mickey\" MacKie, University of FloridaApril, 19 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Emma \"Mickey\" MacKie, Assistant Professor, Geological Sciences, University of Florida Host: John Goff |