Articles | Volume 20, issue 23
Atmos. Chem. Phys., 20, 15015–15036, 2020
https://doi.org/10.5194/acp-20-15015-2020

Special issue: Satellite observations, in situ measurements and model simulations...

Atmos. Chem. Phys., 20, 15015–15036, 2020
https://doi.org/10.5194/acp-20-15015-2020

Research article 04 Dec 2020

Research article | 04 Dec 2020

Particle aging and aerosol–radiation interaction affect volcanic plume dispersion: evidence from the Raikoke 2019 eruption

Lukas O. Muser et al.

Data sets

NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Volcanic Ash Detection and Height Environmental Data Record (EDR) from NDE M. Pavolonis, H. Qi, and NOAA JPSS Program Office https://doi.org/10.7289/V5BK19KS

MODIS Atmosphere L2 Cloud Product (06\_L2), NASA MODIS Adaptive Processing System S. Platnick, S. Ackerman, M. King, M., et al. https://doi.org/10.5067/MODIS/MYD06\_L2.061

CLDPROP_L2_VIIRS_SNPP - VIIRS/Suomi-NPP Cloud Properties L2 6-Min Swath 750 m S. Platnick, K. G. Meyer, A. K. Heidinger, and R. Holz https://doi.org/10.5067/VIIRS/CLDPROP_L2_VIIRS_SNPP.011

LAADS DAAC NASA https://ladsweb.modaps.eosdis.nasa.gov

Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations NASA https://eosweb.larc.nasa.gov/project/calipso/calipso_table/

MODIS Atmosphere L2 Cloud Product (06\_L2), NASA MODIS Adaptive Processing System S. Platnick, S. Ackerman, M. King, M., et al. https://doi.org/10.5067/MODIS/MOD06_L2.061

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Short summary
Volcanic aerosols endanger aircraft and thus disrupt air travel globally. For aviation safety, it is vital to know the location and lifetime of such aerosols in the atmosphere. Here we show that the interaction of volcanic particles with each other eventually reduces their atmospheric lifetime. Moreover, we demonstrate that sunlight heats these particles, which lifts them several kilometers in the atmosphere. These findings support a more reliable forecast of volcanic aerosol dispersion.
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