Lahars and Huaycos: modelling erosive flash floods
- đ¤ Speaker: Andrew Hogg, University of Bristol
- đ Date & Time: Friday 09 February 2024, 16:00 - 17:00
- đ Venue: MR2
Abstract
Huaycos – flash floods in the Peruvian Andes – and lahars â volcanic debris flows – are potent natural hazards that threaten regularly lives and livelihoods. They comprise debris-laden fluid that flows rapidly down steep slopes, bulking up considerably through erosion of the underlying bed as they progress. Owing to their rapid onset and the significant threat that they pose to communities and infrastructures, it is important to predict their motion to assess quantitatively some of the impacts that they may cause. In this seminar I will unpick some of the mathematical intricacies of modelling these flows, present a new model of the key physical processes that govern the motion and illustrate its operational use worldwide.
Series This talk is part of the Fluid Mechanics (DAMTP) series.
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Andrew Hogg, University of Bristol
Friday 09 February 2024, 16:00-17:00