Articles | Volume 17, issue 4
Atmos. Chem. Phys., 17, 2865–2879, 2017
Atmos. Chem. Phys., 17, 2865–2879, 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.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
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
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.
Final-revised paper