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SUMMARY:The flow pattern evolution of the Scandinavian Ice Sheet reconstru
 cted from high-resolution mapping of subglacial bedforms. - Frances Butche
 r\, University of Sheffield 
DTSTART:20240229T160000Z
DTEND:20240229T170000Z
UID:TALK212191@talks.cam.ac.uk
CONTACT:86998
DESCRIPTION:The Scandinavian Ice Sheet (SIS) reached its maximum extent ov
 er Fennoscandia and Northern Europe ~21–20 ka. At its maximum volume\, t
 he SIS hosted approximately 15 m sea level equivalent of water. When it re
 treated\, this water was delivered to the oceans\, and the SIS left a rich
  variety of glacial landforms which can be used to reconstruct the ice she
 et and its evolution over time. Empirical reconstructions of past ice shee
 ts based on observations of their landform records can be used to better u
 nderstand ice sheet dynamics and their responses to climate changes. In th
 is talk\, I will present a new reconstruction of the flow pattern evolutio
 n of the SIS derived from extensive subglacial bedform mapping using new h
 igh-resolution (metre-scale) digital elevation models over Finland\, Swede
 n\, and Norway. I will present this in its context as a part of the ERC-fu
 nded PALGLAC project (PI Prof. C. Clark). PALGLAC is combining multiple ob
 servational ingredients to produce a new empirical reconstruction of the e
 ntire Scandinavian Ice Sheet\, and combining this with data-model comparis
 on approaches to improve numerical model representations of ice sheet dyna
 mics and evolution. Such insights are important to improve our understandi
 ng of the potential responses of Earth’s contemporary ice sheets to anth
 ropogenic climate change\, and thus their likely future contributions to g
 lobal sea level rise.
LOCATION:Scott Polar Research Institute\, main lecture theatre
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