Articles | Volume 17, issue 4
Atmos. Chem. Phys., 17, 2865–2879, 2017
https://doi.org/10.5194/acp-17-2865-2017
Atmos. Chem. Phys., 17, 2865–2879, 2017
https://doi.org/10.5194/acp-17-2865-2017

Research article 24 Feb 2017

Research article | 24 Feb 2017

Improving volcanic ash predictions with the HYSPLIT dispersion model by assimilating MODIS satellite retrievals

Tianfeng Chai et al.

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AR by Anna Wenzel on behalf of the Authors (31 Jan 2017)  Author's response
ED: Publish as is (06 Feb 2017) by Stefano Galmarini
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Short summary
An inverse system based on the HYSPLIT dispersion model has been built to estimate volcanic ash source strengths, vertical distribution, and temporal variations. Using MODIS retrievals from the 2008 Kasatochi volcanic ash clouds, three options for matching model results to satellite mass loadings are tested. They all show decent skill. It is also found that simultaneously assimilating observations at different times produces better hindcasts than only assimilating the most recent observations.
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