TY - RPRT TI - Comparing simulations of umbrella-cloud growth and ash transport with observations from Pinatubo, Kelud, and Calbuco volcanoes AU - Larry G. Mastin AU - Alexa R. Van Eaton PY - 2020 DO - 10.3390/atmos11101038 UR - https://pubs.usgs.gov/publication/70218208 ID - 70218208 ER -