Measurement of snow particle size and velocity in avalanche powder clouds Ito, Yoichi ; Naaim-Bouvet, Florence ; Nishimura, Kouichi ; Bellot, Hervé ; Thibert, Emmanuel ; Ravanat, Xavier ; Fontaine, Firmin Abstract Publication: Journal of Glaciology Pub Date: April 2017 DOI: 10.1017/jog.2016.130 Bibcode: 2017JGlac..63..249I