The effects of topographic uncertainty on lahar flow dynamics: modelling uncertain topographic data and strategies to improve quantitative lahar hazard assessments

Mark James Woodhouse1, Jeremy Phillips2, Andrew J Hogg1, Jonathan Rougier2, Pedro Espín3 and Stefanie Almeida4, (1)University of Bristol, Bristol, BS8, United Kingdom, (2)University of Bristol, Bristol, United Kingdom, (3)Instituto Geofísico, Escuela Politécnica Nacional, Volcanología, Quito, Ecuador, (4)Instituto Geofísico de la Escuela Politécnica Nacional, Quito, Ecuador