Ultraviolet Camera Measurements of Passive and Explosive (Strombolian) Sulphur Dioxide Emissions at Yasur Volcano, Vanuatu. - Tehnuka Ilanko; Tom D. Pering; Thomas Charles Wilkes; Julia Woitischek; Roberto D'Aleo; Alessandro Aiuppa; Andrew J. S. McGonigle; Marie Edmonds; Esline Garaebiti (Remote. Sens., 2020)