Articles | Volume 9, issue 2
https://doi.org/10.5194/gmd-9-765-2016
https://doi.org/10.5194/gmd-9-765-2016
Development and technical paper
 | 
25 Feb 2016
Development and technical paper |  | 25 Feb 2016

New developments in the representation of Saharan dust sources in the aerosol–climate model ECHAM6-HAM2

Bernd Heinold, Ina Tegen, Kerstin Schepanski, and Jamie R. Banks

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Short summary
In the aerosol-climate model ECHAM6-HAM2, dust source activation (DSA) observations from MSG satellite are used to replace the current Saharan source map. The new setup provides more realistically distributed, up to 20 % higher annual Saharan emissions. Modeled dust AOT is partly improved in the Sahara-Sahel region, as is the spatial variability. As a comparison to sub-daily MSG DSAs and a regional model shows, the representation of meteorological drivers of dust uplift remains a critical issue.