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SUMMARY:MechE Colloquium: Bringing tidewater glaciers into the lab: iceber
 gs\, earthquakes\, and the world's largest granular material
DTSTART:20240423T120000
DTEND:20240423T130000
DTSTAMP:20260930T185337Z
UID:c4b01e52f49d86e2616a6276109d2fc637db65045561ab35a4cae236
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof Justin Burton\, Emory\nAbstract: \n\nTidewater glaciers 
 are the gatekeepers between arctic ice sheets and the ocean. In Greenland\
 , these glaciers are formed from ice that is squeezed into narrow channels
  called fjords\, where the flow rate can reach 50 m/day and cubic-kilomete
 r scale icebergs can fracture and discharge into the ocean. Field campaign
 s and satellite imagery have revealed the dynamics of tidewater glaciers o
 n timescales from hours to years\, but measurements are complicated by the
  inherent dangers of instrumenting remote\, ice-choked fjords. Our lab has
  investigated several important processes occurring in tidewater glaciers\
 , from glacial earthquakes generated by capsizing icebergs to the jamming 
 behavior of ice mélange (a floating granular material spanning 50 square 
 kilometers). Our experiments use plastic ice analogs in a meter-scale wate
 r tank which is fully instrumented with cameras\, force sensors\, and pres
 sure sensors. In this talk I will review some of our findings and discuss 
 recent results showing that quasi-statically advancing ice mélange produc
 es stochastic forcing and dynamics that cannot be captured with continuum 
 models. \n\n\nBiography: \n\nJustin Burton obtained his B.S. degree in P
 hysics from the University of Cincinnati in 2001 and his Ph.D. degree in P
 hysics from the University of California\, Irvine in 2006. After postdocto
 ral positions at the Fred Hutchinson Cancer Research Center and the Univer
 sity of Chicago\, he joined the Department of Physics at Emory University 
 in 2013\, where he is now an Associate Professor of Physics. His interdisc
 iplinary research program is primarily experimental and covers a wide vari
 ety of topics focused on complex and nonequilibrium systems. Current proje
 cts include interfacial and nanoscale fluid dynamics\, machine learning of
  many-body dynamics in dusty plasmas\, and "soft earth geophysics." He is 
 currently a Gordon and Betty Moore Experimental Physics Investigator and i
 s a past recipient of the National Science Foundation's CAREER Award. He a
 lso leads a number of K-12 STEM outreach and education activities in the A
 tlanta area.\n 
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418 https://epf
 l.zoom.us/j/61626448592
STATUS:CONFIRMED
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