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

Qianqian Song, Zhibo Zhang, Hongbin Yu, Jasper F. Kok, Claudia Di-Biagio, Samuel Albani, Jianyu Zheng, and Jiachen Ding

Size-resolved dust direct radiative effect efficiency derived from satellite observations
Atmos. Chem. Phys.

Wednesday 12 October 2022
Újvári, G., U. Klötzli, T. Stevens, A. Svensson, P. Ludwig, T. Vennemann, S. Gier, M. Horschinegg, L. Palcsu, D. Hippler, J. Kovács, Claudia Di-Biagio, Paola Formenti

Greenland ice core record of last glacial dust sources and atmospheric circulation
Journal of Geophysical Research: Atmosphere

Monday 18 July 2022
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News

Les vastes quantités de poussières soulevées au Sahara modifient fortement les bilans énergétiques terrestres, les processus biogéochimiques, la...
Wednesday 10 June 2020
  Front de poussière arrivant sur la ville de Niamey le 4 mai 2020 vers 14h (Photo Aliko Mamane – IRD Niamey)   Le 4 mai dernier, Niamey,...
Thursday 28 May 2020