Articles | Volume 22, issue 5
Atmos. Chem. Phys., 22, 3409–3431, 2022
https://doi.org/10.5194/acp-22-3409-2022
Atmos. Chem. Phys., 22, 3409–3431, 2022
https://doi.org/10.5194/acp-22-3409-2022
Research article
15 Mar 2022
Research article | 15 Mar 2022

Modelling the size distribution of aggregated volcanic ash and implications for operational atmospheric dispersion modelling

Frances Beckett et al.

Related authors

The 2019 Raikoke volcanic eruption – Part 2: Particle-phase dispersion and concurrent wildfire smoke emissions
Martin J. Osborne, Johannes de Leeuw, Claire Witham, Anja Schmidt, Frances Beckett, Nina Kristiansen, Joelle Buxmann, Cameron Saint, Ellsworth J. Welton, Javier Fochesatto, Ana R. Gomes, Ulrich Bundke, Andreas Petzold, Franco Marenco, and Jim Haywood
Atmos. Chem. Phys., 22, 2975–2997, https://doi.org/10.5194/acp-22-2975-2022,https://doi.org/10.5194/acp-22-2975-2022, 2022
Short summary
Quantifying the mass loading of particles in an ash cloud remobilized from tephra deposits on Iceland
Frances Beckett, Arve Kylling, Guðmunda Sigurðardóttir, Sibylle von Löwis, and Claire Witham
Atmos. Chem. Phys., 17, 4401–4418, https://doi.org/10.5194/acp-17-4401-2017,https://doi.org/10.5194/acp-17-4401-2017, 2017
Short summary
Big grains go far: understanding the discrepancy between tephrochronology and satellite infrared measurements of volcanic ash
J. A. Stevenson, S. C. Millington, F. M. Beckett, G. T. Swindles, and T. Thordarson
Atmos. Meas. Tech., 8, 2069–2091, https://doi.org/10.5194/amt-8-2069-2015,https://doi.org/10.5194/amt-8-2069-2015, 2015
Short summary

Related subject area

Subject: Aerosols | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
Aerosol indirect effects in complex-orography areas: a numerical study over the Great Alpine Region
Anna Napoli, Fabien Desbiolles, Antonio Parodi, and Claudia Pasquero
Atmos. Chem. Phys., 22, 3901–3909, https://doi.org/10.5194/acp-22-3901-2022,https://doi.org/10.5194/acp-22-3901-2022, 2022
Short summary
The effect of BC on aerosol–boundary layer feedback: potential implications for urban pollution episodes
Jessica Slater, Hugh Coe, Gordon McFiggans, Juha Tonttila, and Sami Romakkaniemi
Atmos. Chem. Phys., 22, 2937–2953, https://doi.org/10.5194/acp-22-2937-2022,https://doi.org/10.5194/acp-22-2937-2022, 2022
Short summary
Relative importance of high-latitude local and long-range-transported dust for Arctic ice-nucleating particles and impacts on Arctic mixed-phase clouds
Yang Shi, Xiaohong Liu, Mingxuan Wu, Xi Zhao, Ziming Ke, and Hunter Brown
Atmos. Chem. Phys., 22, 2909–2935, https://doi.org/10.5194/acp-22-2909-2022,https://doi.org/10.5194/acp-22-2909-2022, 2022
Short summary
Technical note: Dispersion of cooking-generated aerosols from an urban street canyon
Shang Gao, Mona Kurppa, Chak K. Chan, and Keith Ngan
Atmos. Chem. Phys., 22, 2703–2726, https://doi.org/10.5194/acp-22-2703-2022,https://doi.org/10.5194/acp-22-2703-2022, 2022
Short summary
Comparison of six approaches to predicting droplet activation of surface active aerosol – Part 1: moderately surface active organics​​​​​​​
Sampo Vepsäläinen, Silvia M. Calderón, Jussi Malila, and Nønne L. Prisle
Atmos. Chem. Phys., 22, 2669–2687, https://doi.org/10.5194/acp-22-2669-2022,https://doi.org/10.5194/acp-22-2669-2022, 2022
Short summary
Download
Short summary
As volcanic ash is transported through the atmosphere, it may collide and stick together to form aggregates. Neglecting the process of aggregation in atmospheric dispersion models could lead to inaccurate forecasts used by civil aviation for hazard assessment. We developed an aggregation scheme for use with the model NAME, which is used by the London Volcanic Ash Advisory Centre. Using our scheme, we investigate the impact of aggregation on simulations of the 2010 Eyjafjallajökull ash cloud.
Altmetrics
Final-revised paper
Preprint