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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
© Author(s) 2014. This work is distributed
under the Creative Commons Attribution 3.0 License.
Development and technical paper
19 May 2014
Review status
This discussion paper has been under review for the journal Geoscientific Model Development (GMD). The revised manuscript was not accepted.
Homogeneized modeling of mineral dust emissions over Europe and Africa using the CHIMERE model
R. Briant1, L. Menut1, G. Siour2, and C. Prigent3 1LMD, Laboratoire de météorologie dynamique, École Polytechnique, 91128 Palaiseau, France
2LISA, UMR-CNRS 7583, Université Paris Est Créteil (UPEC), Université Paris Diderot (UPD), Institut Pierre Simon Laplace (IPSL), Créteil, France
3UMR-CNRS 8112, Laboratoire d' Études du Rayonnement et de la Matière en Astrophysique, Observatoire de Paris, Paris, France
Abstract. In the region including Africa and Europe, the main part of mineral dust emissions is observed in Africa. The particles are thus transported towards Europe and constitute a non-negligible part of the surface aerosols measured and controlled in the framework of the European air quality legislation. The modelling of these African dust emissions fluxes and transport is widely studied and complex parameterizations are already used in regional to global model for this Sahara-Sahel region. In a lesser extent, mineral dust emissions occur locally in Europe, mainly over agricultural areas. Their modelling is generally poorly done or just ignored. But in some cases, this contribution may be important and may impact the European air quality budget. In this study, we propose an homogeneized calculations of mineral dust fluxes for Europe and Africa. For that, we extended the CHIMERE dust production model (DPM) by using new soil and surface datasets, and the global aeolian roughness length dataset provided by GARLAP from microwave and visible satellite observations. This DPM is detailed along with academic tests case results and simulation on a real case results.

Citation: Briant, R., Menut, L., Siour, G., and Prigent, C.: Homogeneized modeling of mineral dust emissions over Europe and Africa using the CHIMERE model, Geosci. Model Dev. Discuss., 7, 3441-3480, doi:10.5194/gmdd-7-3441-2014, 2014.
R. Briant et al.
R. Briant et al.


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