Another large #eruption of #Ulawun (#PapuaNewGuinea) on Aug 3. #Sentinel5P #Tropomi measuring ~0.2 Tg of SO2 in the volcanic cloud on Aug 4 - perhaps a bit larger than the June 26 eruption. Not clear yet how much SO2 is stratospheric. @CopernicusEMS @andrewcraigtupp @airesEO pic.twitter.com/1C0QozrvWi

— Prof. Simon Carn (@simoncarn) August 4, 2019