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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Cited articles

Allen, C. J. T., Washington, R., and Engelstaedter, S.: Dust emission and transport mechanisms in the central Sahara: Fennec ground-based observations from Bordj Badji Mokhtar, June 2011, J. Geophys. Res. Atmos., 118, 6212–6232, https://doi.org/10.1002/jgrd.50534, 2013.
Ashpole, I. and Washington, R.: An automated dust detection using SEVIRI: A multi-year climatology of summertime dustiness in the central and western Sahara, J. Geophys. Res., 117, D08202, https://doi.org/10.1029/2011JD016845, 2012.
Baker, J. B., Southard, R. J. and Mitchell, J. P.: Agricultural Dust Production in Standard and Conservation Tillage Systems in the San Joaquin Valley, J. Environ. Qual., 34, 1260–1269, https://doi.org/10.2134/jeq2003.0348, 2005.
Banks, J. R. and Brindley, H. E.: Evaluation of MSG-SEVIRI mineral dust retrieval products over North Africa and the Middle East, Remote Sens. Environ., 128, 58–73, https://doi.org/10.1016/j.rse.2012.07.017, 2013.
Banks, J. R., Brindley, H. E., Flamant, C., Garay, M. J., Hsu, N. C., Kalashnikova, O. V., Klüser, L., and Sayer, A. M.: Intercomparison of satellite dust retrieval products over the west African Sahara during the Fennec campaign in June 2011, Remote Sens. Environ., 136, 99–116, https://doi.org/10.1016/j.rse.2013.05.003, 2013.
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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.