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SUMMARY:Satellite monitoring of volcanic unrest and eruption - Susanna Ebm
 eier (University of Leeds)
DTSTART:20251126T140000Z
DTEND:20251126T150000Z
UID:TALK239386@talks.cam.ac.uk
CONTACT:Adriano Gualandi
DESCRIPTION:Satellite imagery provides a unique window into volcano and ma
 gmatic processes\, providing potentially global measurements of deformatio
 n\, degassing and thermal emissions.  These measurements illuminate stages
  of magmatism spanning from pluton growth\, to landscape formation to the 
 environmental impact of volcanic eruptions.  Satellite radar measurements\
 , in particular\, capture processes associated with the movement of magma 
 in the Earth’s crust and can play a role in forecasting the development 
 of unrest and duration of eruptions.\n \nThe advent of freely available\, 
 systematically acquired satellite imagery\, requires new automated approac
 hes to processing and analysis. However\, it also presents new opportuniti
 es for global analysis of data\, allowing analysis of relationships betwee
 n unrest at volcanoes across a whole region\, rather than on a individual 
 basis.  My research focuses on how to extract volcanologically useful para
 meters from satellite imagery\, with a particular focus on Interferomentri
 c Synthetic Aperture Radar. This involves the application of signal proces
 sing methods such as source separation and unsupervised classification.  U
 nderstanding volcanic deformation also requires advancing our understandin
 g of crustal rheology and how our approximations affect modelling of surfa
 ce deformation.\n \nLess than 35 % of the worlds 600 potentially active vo
 lcanoes have continual ground-based monitoring infrastructure.  In this co
 ntext\, optimising the information we can draw from global satellite image
 ry is critical not only for our fundamental understanding of volcanism\, b
 ut for monitoring their hazards.
LOCATION:Wolfson Lecture Theatre
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