Christopher Rollins, University of Leeds, Leeds, United Kingdom, Tim J Wright, University of Leeds, COMET, School of Earth and Environment, Leeds, United Kingdom, Andrew J Hooper, University of Leeds, COMET, School Earth and Environment, Leeds, United Kingdom, Jonathan R. Weiss, University of Leeds, COMET, School of Earth and Environment, Leeds, LS2, United Kingdom, Richard J Walters, Durham University, COMET, Department of Earth Sciences, Durham, United Kingdom, Milan Lazecky, COMET, University of Leeds, School of Earth and Environment, Leeds, United Kingdom and Yu Morishita, Geospatial Information Authority of Japan, Ibaraki, Japan