Understanding day–night differences in dust aerosols over the dust belt of North Africa, the Middle East, and Asia

Tindan, Jacob Z.; Jin, Qinjian; Pu, Bing

doi:https://doi.org/10.5194/acp-23-5435-2023

Articles | Volume 23, issue 9

https://doi.org/10.5194/acp-23-5435-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-5435-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 9

Research article

|

16 May 2023

Research article |

| 16 May 2023

Understanding day–night differences in dust aerosols over the dust belt of North Africa, the Middle East, and Asia

Jacob Z. Tindan, Qinjian Jin, and Bing Pu

Supplement

https://doi.org/10.5194/acp-23-5435-2023-supplement

Data sets

Daily IASI/Metop-A LMD Dust-AOD L2 product V. Capelle https://iasi.aeris-data.fr/catalog/#masthead

CALIPSO Lidar Level 3 Tropospheric Aerosol Profiles, Cloud Free Data, Standard V4-20 NASA/LARC/SD/ASDC https://doi.org/10.5067/CALIOP/CALIPSO/CAL_LID_L3_Tropospheric_APro_Standard-V4-20

The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) R. Gelaro, W. McCarty, M. J. Suárez, R. Todling, A. Molod, L. Takacs, C. A. Randles, A. Darmenov, M. G. Bosilovich, R. Reichle, K. Wargan, L. Coy, R. Cullather, C. Draper, S. Akella, V. Buchard, A. Conaty, A. M. da Silva, W. Gu, G. K. Kim, R. Koster, R. Lucchesi, D. Merkova, J. E. Nielsen, G. Partyka, S. Pawson, W. Putman, M. Rienecker, S. D. Schubert, M. Sienkiewicz, and B. Zhao https://disc.gsfc.nasa.gov/datasets?keywords=MERRA-2&page=1

ERA5 hourly data on single levels from 1940 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.adbb2d47

ERA5 hourly data on pressure levels from 1940 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.bd0915c6

GPM IMERG Final Precipitation L3 Half Hourly 0.1 degree x 0.1 degree V06 Huffman, G. J., Stocker, E. F., Bolvin, D. T., Nelkin, E. J., and Tan, J. https://doi.org/10.5067/GPM/IMERG/3B-HH/06

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Short summary

We use the Infrared Atmospheric Sounder Interferometer (IASI) retrievals of dust variables (dust optical depth and dust layer height) and surface observations to understand the day- and nighttime variations in dust aerosols over the dust belt. Our results show that daytime dust aerosols are significantly different from nighttime, and such day–night variations are influenced by meteorological factors such as wind speed, precipitation, and turbulent motions within the atmospheric boundary layer.