Events

JSG Happenings

Events

September 2012 November 2012
Mon Tue Wed Thu Fri Sat Sun
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
    
Legend
 JSG  BEG  UTIG  DGS 

CAREER Workshop: 3-in1

August, 29 2017

Time: 5:00 PM - 6:30 PM
Location: JGB 3.222

An interactive workshop for new and returning students to help you prepare for the upcoming Geosciences Career Fair on 9/18 and On-Campus Interviews beginning 9/19. The three parts are, in order: Resumes, Career Fair Prep, Interviewing Tips. No RSVP.

UTIG Seminar Series: Alex Robel (Caltech)

September, 01 2017

Time: 10:30 AM - 11:30 AM
Location: PRC ROC Room 1.603

Title: A Theory of the Marine-Terminating Glacier Response to Forcing

Abstract: Marine-terminating glaciers in Greenland and Antarctica are currently retreating and thinning. In this talk, I describe a simple dynamical model which accurately emulates the response of marine-terminating glaciers to external forcing simulated in more realistic models. I explain and use the fluctuation-dissipation theorem to understand the transient glacier response to external forcing. This analysis shows that there is a fast time scale of decades to centuries and a slow time scale of millennia that characterize both stationary glacier fluctuations and the non-stationary glacier response to climate forcing on prograde bed slopes. The two time scales are also associated with two different forms of the marine ice sheet instability due to different physical mechanisms. The slow marine ice sheet instability occurs at nearly flat bed slopes and evolves on time scales of hundreds to thousands of years. The fast marine ice sheet instability only occurs on steep retrograde slopes and causes rapid retreat on decadal time scales, similar to what is observed at some glaciers in Greenland and West Antarctica. The sensitivity of glacier thickness and grounding-line position to external forcing depends on the equilibrium glacier state, bed slope and the type of forcing process, in line with recent studies that find a spatially-varying sensitivity of glacier thickness to forcing. The slow marine-terminating glacier response to forcing indicates that current glacier change on prograde bed slopes is likely to continue and accelerate in coming centuries regardless of future climate forcing. I also show that the spread and fat-tail of uncertainty in stochastic ensemble projections of future ice sheet change can be amplified by the marine ice sheet instability. I conclude by discussing how we can interpret observations of marine-terminating glacier change in light of these results and novel ensemble techniques for robustly simulating future ice sheet change.

Learn about Alex Robel: https://sites.google.com/site/alexanderrobel/

UTIG Host: Ginny Catania

DeFord Lecture: Whitney Behr

September, 07 2017

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Zeyu Zhao (UTIG)

September, 08 2017

Time: 10:30 AM - 11:30 AM
Location: PRC ROC Room 1.603

Chevron Tailgate

September, 09 2017

Time: 12:00 PM - 2:00 PM
Location: JGB Patio

Meet and eat at Chevron sponsored tailgate before the football game. RSVP required on Career Connections.

Basin Dynamics Short Course

September, 09 2017

Time: 9:30 AM - 12:00 PM
Location: JGB 3.222

A free short course for students interested in an oil & gas career.
Jon Rotzien is experienced professional and owner of Basin Dynamics, LLC

BP Info Session

September, 11 2017

Time: 5:15 PM - 6:30 PM
Location: JGB 3.222

BP conducts all interviews virtually.

DeFord Lecture: Steve Jacobsen

September, 14 2017

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Ikuko Wada (University of Minnesota)

September, 15 2017

Time: 10:30 AM - 11:30 AM
Location: PRC ROC Room 1.603