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Info Session

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

7:00 pm - AGS Annual Ethics Lecture: Paul Woodruff

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

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Lunch & Learn-Grad Students

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

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)

4:00 pm - Grand Opening of the Holland Family Student Center

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.

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11:30 am - Paleo Brown Bag: Chris Bell & Ernie Lundelius

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

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Info Session

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

10:30 am - UTIG Seminar Series: Ginny Catania, UTIG

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
 URL:Event Link
"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.

  
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