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SUMMARY:EESS talk on "Alpine hydrogeology and hydrogeophysics"
DTSTART:20241001T121500
DTEND:20241001T131500
DTSTAMP:20260419T231646Z
UID:0649a3d7c16d9f97c67146127f682711fcebb5a0db78664fcb69e5ac
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Landon Halloran\, University of Neuchâtel\nAbstract: \nTh
 e impacts of climate change on alpine headwater catchments are significant
  and far-reaching. Alpine headwater catchments are severely impacted by cl
 imate change. In these systems\, groundwater may act as a buffer\, ensurin
 g perennial streamflow during increasingly long snow-free periods. Permafr
 ost degradation and decreasing snow accumulation\, are rapidly altering th
 e annual dynamics of these water resources. Measuring and understanding gr
 oundwater storage changes is thus vital for current and future water resou
 rce management. Subsurface water resource monitoring is\, however\, extrem
 ely difficult due to logistical challenges and the low “data value” of
  single point measurements in highly heterogeneous and dynamic alpine catc
 hments. Time-lapse gravimetry (TLG) is a portable and non-invasive method 
 wherein small changes in the value of g are measured in order to infer mas
 s distribution dynamics (i.e.\, water)—it may provide a solution to this
  major hydrological monitoring void. In this talk\, I will discuss both th
 e role of alpine groundwater and the use of hydrogeophysics to monitor wat
 er resources. The functioning of various mountain hydro-systems will be di
 scussed\, as will the principles of the TLG method. I will present studies
  from the alpine Vallon de Réchy (VS) and pre-alpine Röthenbach (BE) cat
 chments. Finally\, I will discuss permafrost-groundwater dynamics\, and no
 vel ways to measure them\, at the Canfinal (GR) and Murtèl (GR) rock glac
 iers.\n\nBiography:\nDr. Landon Halloran is a hydrogeologist and hydrogeop
 hysicist. He holds BSc and MSc degrees in physics from the University of V
 ictoria and McGill University in Canada\, and completed his PhD in Civil a
 nd Environmental Engineering at the University of New South Wales in Austr
 alia. Since 2020\, he works as a senior lecturer at the Centre for Hydroge
 ology and Geothermics at the University of Neuchâtel. Landon is currently
  leading the SNSF project "RADMOGG" on alpine water resources and hydrogra
 vimetry\, which he will discuss today\, and is also a grant-holder in the 
 Horizon Europe/SERI project "FARMWISE".\n\n 
LOCATION:ALP 1 107 https://plan.epfl.ch/?room==ALP%201%20107 https://epfl.
 zoom.us/j/69011077410
STATUS:CONFIRMED
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