BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Subglacial hydrology and the transient response of the polar ice s
 heets - Dr. Jerome A. Neufeld 
DTSTART:20210609T120000Z
DTEND:20210609T130000Z
UID:TALK160891@talks.cam.ac.uk
CONTACT:Alice Handy
DESCRIPTION:The response of the Greenland and Antarctic ice sheets to a ch
 anging climate is one of the largest sources of uncertainty in future sea 
 level predictions.  The behaviour of the subglacial environment\, where ic
 e meets hard rock or soft sediment\, is a key determinant in the flux of i
 ce towards the ocean.  In this talk I’ll explore three settings in which
  observations enable us to learn about the response of ice sheets to trans
 ient forcing.  On the shortest timescales\, we’ll examine the rapid drai
 nage of supraglacial lakes and the elastic propagation of subglacial meltw
 ater.  We’ll also look at periodically forced grounding zones\, where th
 e ice floats onto the water\, as a nonlinear response to regular forcing. 
  Finally\, we’ll examine in more detail the response of subglacial sedim
 ents using modern granular constitutive theories to understand both the st
 eady and transient response of the subglacial environment.  The fluid dyna
 mical principles involved\, the peeling of elastic sheets as a blister\, a
 n elastic `Landau-Levitch’ problem\, or of the flow of granular ‘fluid
 s’\, while applied at large scales to the glacial system\, find their an
 alogue in a host of engineering problems with links to be highlighted alon
 g the way.\n
LOCATION:https://live.remo.co/e/fluids-group-seminar-6
END:VEVENT
END:VCALENDAR