Natural Hazards and Earth System Sciences
2018
Large wood transported during extreme flood events can represent a relevant additional source of hazards that should be taken into account in mountain environments. However, direct observations and monitoring of large-wood transport during floods are difficult and scarce. Here we present a video of a flood characterised by multiple phases of large-wood transport, including an initial phase of wood-laden flow rarely described in the literature. Estimations of flow velocity and transported wood volume provide a good opportunity to develop models of large-wood-congested transport.
Diego Ravazzolo 1,2; Luca Mao 3,4; Bruno Mazzorana 5,6,7; and Virginia Ruiz-Villanueva 8
1 Hydraulic and Environmental Engineering Department, Pontificia Universidad Católica de Chile, Santiago, Chile
2 Marine Energy Research and Innovation Center (MERIC), Santiago, Chile
3 Department of Ecosystems and Environment, Pontificia Universidad Católica de Chile, Santiago, Chile
4 Centro Nacional de Investigación para la Gestión Integrada de Desastres Naturales, Santiago, Chile
5 Instituto de Ciencias de la Tierra, Faculty of Science, Universidad Austral de Chile, Valdivia, Chile
6 Universidad Austral de Chile, RINA – Research Unit on Natural and Anthropogenic Risk, Valdivia, Chile
7 Millennium Nucleus CYCLO The Seismic Cycle Along Subduction Zones, Valdivia, Chile
8 Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland
