Articles | Volume 24, issue 20
https://doi.org/10.5194/acp-24-11451-2024
https://doi.org/10.5194/acp-24-11451-2024
Research article
 | 
15 Oct 2024
Research article |  | 15 Oct 2024

Dust aerosol from the Aralkum Desert influences the radiation budget and atmospheric dynamics of Central Asia

Jamie R. Banks, Bernd Heinold, and Kerstin Schepanski

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Cited articles

Adebiyi, A. A., Huang, Y., Samset, B. H., and Kok, J. F.: Observations suggest that North African dust absorbs less solar radiation than models estimate, Communications Earth & Environment, 4, 168, https://doi.org/10.1038/s43247-023-00825-2, 2023. a
Alamirew, N. K., Todd, M. C., Ryder, C. L., Marsham, J. H., and Wang, Y.: The early summertime Saharan heat low: sensitivity of the radiation budget and atmospheric heating to water vapour and dust aerosol, Atmos. Chem. Phys., 18, 1241–1262, https://doi.org/10.5194/acp-18-1241-2018, 2018. a
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 Sy., 6, 541–570, https://doi.org/10.1002/2013MS000279, 2014. a, b, c, d, e, f
Alizadeh-Choubari, O., Zawar-Reza, P., and Sturman, A.: The “wind of 120 days” and dust storm activity over the Sistan Basin, Atmos. Res., 143, 328–341, https://doi.org/10.1016/j.atmosres.2014.02.001, 2014. a
Argaman, E., Singer, A., and Tsoar, H.: Erodibility of some crust forming soils/sediments from the Southern Aral Sea Basin as determined in a wind tunnel, Earth Surf. Proc. Land., 31, 47–63, https://doi.org/10.1002/esp.1230, 2006. a, b, c
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Short summary
The Aralkum is a new desert in Central Asia formed by the desiccation of the Aral Sea. This has created a source of atmospheric dust, with implications for the balance of solar and thermal radiation. Simulating these effects using a dust transport model, we find that Aralkum dust adds radiative cooling effects to the surface and atmosphere on average but also adds heating events. Increases in surface pressure due to Aralkum dust strengthen the Siberian High and weaken the summer Asian heat low.
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