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

Xu-Yang Y., R. Losno, F. Monna, Jean-Louis Rajot, M. Labiadh, Gilles Bergametti, Beatrice Marticorena

Compositional Data Analysis (CoDA) as a tool to evaluate a new low-cost settling-based PM10 sampling head in a desert dust source-region
Atmos. Meas. Tech

Wednesday 8 December 2021
Pierre, C., P. Hiernaux, Jean-Louis Rajot, L. Kergoat, N. Webb, A. Abdourhamane Touré, Beatrice Marticorena, Christel Bouet

Wind erosion response to past and future agro-pastoral trajectories in the Sahel (Niger)
Landscape Ecology

Tuesday 9 November 2021
D. Carrer, C. Meurey, O. Hagolle, G. Bigeard, A. Paci, J.‐M. Donier, Gilles Bergametti, T. Bergot, J.‐C. Calvet, P. Goloub, S. Victori and Z. Wang

Casual Rerouting of AERONET Sun/Sky Photometers: Toward a New Network of Ground Measurements Dedicated to the Monitoring of Surface Properties?
Remote Sensing

Wednesday 4 August 2021
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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