In situ particle sampling and size analysis via unmanned aerial systems in volcanic clouds: examples from Sinabung and Merapi volcanoes, Indonesia

Danielle Kimiko Moyer1, Loÿc Vanderkluysen2, Brett B Carr3, Agung Harijoko4, Haryo Wibowo4 and Esti Handini4, (1)Drexel University, Department of Biodiversity, Earth and Environmental Science, Philadelphia, PA, United States, (2)Drexel University, Department of Biodiversity, Earth & Environmental Science, Philadelphia, PA, United States, (3)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (4)Gadjah Mada University, Yogyakarta, Indonesia