2,3,4,5,6,- 1University of Saskatchewan, Institute of Space and Atmospheric Studies, Saskatoon, Canada (adam.bourassa@usask.ca)
- 2Laboratoire Atmosphère Observations Spatiales (LATMOS), IPSL, Sorbonne University, UVSQ, France
- 3Department of Environmental Science, American University, Washington DC, USA
- 4University of Colorado Boulder, NOAA Chemical Sciences Laboratory, USA
- 5Environment and Climate Change Canada, Canada
- 6Institute of Environmental Physics (IUP), University of Bremen, Germany
- 7NASA Ames Research Center, USA
This talk presents the highlights of the third chapter of the APARC Hunga Volcanic Eruption Atmospheric Impacts Report. The study focuses on the global meridional and vertical evolution of the Hunga sulphate aerosols and water vapour after the full zonal dispersion of the plume, which occurred about one month after the eruption. Measurements from satellites, balloon, and ground-based stations are used to track the dispersion of water vapour and aerosol, and to document the evolution of the aerosol size distribution. The uncertainties in the satellite observations are assessed using detailed intercomparisons. Finally, results from dedicated climate model simulations of the global transport and evolution of Hunga aerosol and water vapour in comparison to the observations are summarized.
How to cite: Bourassa, A., Khaykin, S., Aquila, V., Baron, A., Rieger, L., Rozanov, A., and Ueyama, R.: Atmospheric transport and evolution of Hunga water vapour and aerosols , EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-14830, https://doi.org/10.5194/egusphere-egu26-14830, 2026.
