Articles | Volume 16, issue 23
Research article
06 Dec 2016
Research article |  | 06 Dec 2016

An observationally constrained estimate of global dust aerosol optical depth

David A. Ridley, Colette L. Heald, Jasper F. Kok, and Chun Zhao

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Cited articles

AERONET: Level 2 “all points” aerosol optical depth, NASA Goddard Space Flight Center, available at:, last access: May 2015.
Albani, S., Mahowald, N. M., Perry, A. T., Scanza, R. A., Zender, C. S., Heavens, N. G., Maggi, V., Kok, J. F., and Otto-Bliesner, B. L.: Improved dust representation in the Community Atmosphere Model, J. Adv. Model. Earth Syst., 6, 541–570,, 2014.
Alexander, B., Park, R. J., Jacob, D. J., Li, Q. B., Yantosca, R. M., Savarino, J., Lee, C. C. W., and Thiemens, M. H.: Sulfate formation in sea-salt aerosols: Constraints from oxygen isotopes, J. Geophys. Res.-Atmos., 110, D10307,, 2005.
Ångström, A.: The parameters of atmospheric turbidity, Tellus, 16, 64–75,, 1964.
Baddock, M. C., Ginoux, P., Bullard, J. E., and Gill, T. E.: Do MODIS-defined dust sources have a geomorphological signature?, Geophys. Res. Lett., 43, GL067327,, 2016.
Short summary
Mineral dust aerosol affects climate through interaction with radiation and clouds, human health through contribution to particulate matter, and ecosystem health through nutrient transport and deposition. In this study, we use satellite and in situ retrievals to derive an observational estimate of the global dust AOD with which evaluate modeled dust AOD. Differences in the seasonality and regional distribution of dust AOD between observations and models are highlighted.
Final-revised paper