Mineral Dust Cycle

Mineral Dust Cycle

Mineral dust  aerosols produced  by wind erosion in arid and semi-arid regions contribute for more than 40% of the total annual emissions of tropospheric aerosols. In the atmosphere, these aerosols influence the terrestrial radiative balance and are thus major contributors to climate forcing. Dust deposition is a significant source of nutrients (Fe, P, …) for remote oceanic ecosystems regions, while dust emission contributes to soil loss in source regions. The research activities carried at LISA in this field are mainly focused on the quantification of dust emissions, transport and deposition, in order to assess their radiative and biogeochemical impacts. For this objective, intensive (ground-based and airborne) and longterm field measurements and laboratory experiments are coupled with numerical simulations.

Publications

Obiso, V., Gonçalves Ageitos, M., Pérez García-Pando, C., Perlwitz, J. P., Schuster, G. L., Bauer, S. E., Claudia Di-Biagio, Paola Formenti, Tsigaridis, K., and Miller, R. L.

Observationally constrained regional variations of shortwave absorption by iron oxides emphasize the cooling effect of dust
Atmos. Chem. Phys.

Tuesday 7 May 2024
E. Sirjani, A. Sameni, M. Mahmoodabadi, A. A. Moosavi, Benoit Laurent

In-situ wind tunnel experiments to investigate soil erodibility, soil fractionation and wind-blown sediment of semi-arid and arid calcareous soils
Catena

Tuesday 23 April 2024
Jianyu Zheng, Zhibo Zhang, Sergio DeSouza-Machado, Claire L. Ryder, Anne Garnier, Claudia Di-Biagio, Ping Yang, Ellsworth J. Welton, Hongbin Yu, Africa Barreto, Margarita Y. Gonzalez

Assessment of dust size retrievals based on AERONET: A case study of radiative closure from visible-near-infrared to thermal infrared
Geophys. Res. Lett.

Tuesday 16 April 2024
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News

From April 8 to 12, 2024, Akinori Ito, researcher at the Japan Agency for Marine-Earth Science and Technology (JAMSTEC), visited LISA thanks to the French...
Thursday 11 April 2024
In January 2024, the French Ambassador to Namibia, Mr. Sébastien Minot, and his staff visited LISA's observation station in Gobabeb, Namibia....
Monday 8 January 2024
For several years, LISA has been conducting a program of observations on the west coast of Namibia, facing the Atlantic Ocean, one of the most important...
Monday 18 December 2023