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SUMMARY:ENAC Seminar Series by Prof. Francesca Pellicciotti
DTSTART:20181204T083000
DTEND:20181204T093000
DTSTAMP:20260930T211714Z
UID:a21fa9f03a2b5b14cf2cabaab98cb818283d6e48242889efc611af79
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Francesca Pellicciotti\n8:30 – 9:30 – Prof. Francesc
 a Pellicciotti\nAssociate Professor\, Department of Geography\, Faculty of
  Engineering and Environment\, Northumbria University\, UK\n \nWhat drive
 s changes in debris-covered glaciers in High Mountain Asia? \n \nOne of t
 he most important questions of climate change impact research today is how
  glaciers are responding to global warming. This is a pressing question in
  High Mountain Asia (HMA)\, where glaciers provide water resources for mil
 lions of people\, but their historical changes and future trends are uncle
 ar. The scarcity of direct observations and unresolved thinning patterns f
 or debris-covered glaciers in the region challenge established understandi
 ng and the application of regional simulation models. While mantles of roc
 k debris theoretically insulate the underlying ice and thus reduce melt\, 
 research has documented that debris-covered glaciers are thinning at the s
 ame rates as debris-free glaciers in HMA. The causes of this possible “d
 ebris-cover anomaly” are yet to be resolved.\nHere\, I present key recen
 t advancements for understanding debris-covered glaciers at multiple scale
 s. I show that supra-glacial cliffs and ponds forming on debris-covered gl
 aciers are hot spots for melt and discuss some recent advancements in mode
 lling their energy balance\, surface evolution and dynamics. Leveraging th
 ese advanced models\, I demonstrate that they affect the mass balance and 
 runoff of glaciers at the catchment scale\, accounting for up to 60% of to
 tal ice losses.
LOCATION:CO 122 https://plan.epfl.ch/?room=CO122
STATUS:CONFIRMED
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