The authors wish to thank E. Cuevas from the Damiri from the Laboratoire d'Optique Atmosphérique (LOA), K. Desboeufs from the Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), and L. Gomes from Météo-France for complementary radiometers, data, and technical support. The CALIPSO satellite data was supplied by The MSG/SEVIRI images were delivered by L. Gonzalez and C. Deroo from the LOA. Special thanks to A. Oulachidir, SAHARAN BOUNDARY LAYER OBSERVATIONS D00C07 Inter-organismes (AMMA-API), the Office National Salah Ferroudj, and M. Oumrana for their priceless support during the field campaign. The authors are grateful to A. Garnier, J. Pelon, and C. Lavaysse from the Service d'Aéronomie (SA) and M. Capderou from the Laboratoire de Météorologie Dynamique (LMD) for their suggestions and support for this work. The authors are indebted to M. Schaldembrand and the DT/INSU secretary for handling financial and travel matters ,
Significance of multiple scattering from tropospheric aerosols for ground-based backscatter lidar measurements, Applied Optics, vol.38, issue.24, pp.5195-5201, 1999. ,
DOI : 10.1364/AO.38.005195
The parameters of atmospheric turbidity, Tellus, pp.64-75, 1964. ,
A comparison of methods to determine the onset of the growing season in northern Nigeria, International Journal of Climatology, vol.10, issue.6, pp.731-742, 2002. ,
DOI : 10.1002/joc.712
Thermodynamic budget of the five day wave over the Saharan desert during summer, Meteorology and Atmospheric Physics, vol.30, issue.8991, pp.1-2510, 1991. ,
DOI : 10.1007/BF01025823
Mineralogy of Saharan dust transported over northwestern tropical Atlantic Ocean in relation to source regions, Journal of Geophysical Research, vol.45, issue.3???4, pp.425110-1029, 2002. ,
DOI : 10.1029/2000JD000247
Nouvelle Station d'Observations Transportable: Lidar et radiomètres, paper presented at Atelier d'Instrumentation et Experimentation, Inst. Natl. des Sci. de l'Univers, pp.12-16, 2004. ,
A model for Saharan dust transport, J. Clim. Appl. Meteorol, vol.252, pp.903-916, 1986. ,
Number, mass and volume distributions of mineral aerosol and soils of the Sahara, 022<0233:NMAVDO>2.0. CO, pp.233-243, 1983. ,
Review of the North African climate with particular emphasis on the production of eolian dust in the Sahel Zone and in the Sahara, Saharan Dust: Mobilization, Transport, Deposition, pp.27-48, 1979. ,
A flexible inversion algorithm for retrieval of aerosol optical properties from Sun and sky radiance measurements, Journal of Geophysical Research: Atmospheres, vol.103, issue.2, pp.673-2010, 2000. ,
DOI : 10.1029/2000JD900282
Non-spherical aerosol retrieval method employing light scattering by spheroids, Geophysical Research Letters, vol.35, issue.10, pp.141510-1029, 2002. ,
DOI : 10.1029/2001GL014506
Analysis of atmospheric lidar observations: some comments, Applied Optics, vol.23, issue.5, pp.652-653, 1984. ,
DOI : 10.1364/AO.23.000652
Determination of Aerosol Height Distributions by Lidar, 011<0482:DOAHDB>2.0.CO, pp.482-489, 1972. ,
DOI : 10.1175/1520-0450(1972)011<0482:DOAHDB>2.0.CO;2
Airborne observations of the impact of a convective system on the planetary boundary layer thermodynamics and aerosol distribution in the inter-tropical discontinuity region of the West African Monsoon, Quarterly Journal of the Royal Meteorological Society, vol.32, issue.626, pp.1175-1189, 2007. ,
DOI : 10.1002/qj.97
URL : https://hal.archives-ouvertes.fr/hal-00180247
The Properties of Atmospheric Aerosol Particles as Functions of the Relative Humidity at Thermodynamic Equilibrium with the Surrounding Moist Air, Adv. Geophys, vol.19, pp.73-188, 1976. ,
DOI : 10.1016/S0065-2687(08)60142-9
Air resources laboratories atmospheric transport and dispersion model, 1980. ,
Surface energy balance closure in an arid region: role of soil heat flux, Agricultural and Forest Meteorology, vol.122, issue.1-2, pp.21-37, 2004. ,
DOI : 10.1016/j.agrformet.2003.09.005
AERONET???A Federated Instrument Network and Data Archive for Aerosol Characterization, Remote Sensing of Environment, vol.66, issue.1, pp.1-1610, 1998. ,
DOI : 10.1016/S0034-4257(98)00031-5
The large-scale context on the West African monsoon in, Newsl. Clim. Variability Predict. Programme, vol.12, issue.17, pp.11-12, 2006. ,
Analysis and Numerical Simulations of the Saharan Air Layer and Its Effect on Easterly Wave Disturbances, Journal of the Atmospheric Sciences, vol.45, issue.21, pp.45-3102, 1988. ,
DOI : 10.1175/1520-0469(1988)045<3102:AANSOT>2.0.CO;2
Retrievals of profiles of fine and coarse aerosols using lidar and radiometric space measurements, IEEE Transactions on Geoscience and Remote Sensing, vol.41, issue.8, pp.1743-1754, 2003. ,
DOI : 10.1109/TGRS.2003.814138
Dust mobilization due to density currents in the Atlas region: Observations from the Saharan Mineral Dust Experiment 2006 field campaign, Journal of Geophysical Research, vol.111, issue.6, pp.2110910-1029, 2007. ,
DOI : 10.1029/2007JD008774
TReSS: A transportable remote sensing station for atmospheric research and satellite validation, paper presented at 22nd International Laser Radar Conference, 2004. ,
Modeling the atmospheric dust cycle: 1. Design of a soil-derived dust emission scheme, Journal of Geophysical Research, vol.2, issue.B, pp.16415-16430, 1995. ,
DOI : 10.1029/95JD00690
Laser Remote Sensing: Fundamentals and Applications, 1984. ,
Saharan dust outbreaks towards Europe: 3 years of systematic observations by the European lidar network in the frame of the EARLINET project, paper presented at 22nd International Laser Radar Conference, pp.12-16, 2000. ,
AMMA Task Team #8, SOP monsoon strategic planning document, 2006. ,
The diurnal cycle of the West African monsoon circulation, Quarterly Journal of the Royal Meteorological Society, vol.129, issue.611, pp.2839-2860, 2005. ,
DOI : 10.1256/qj.04.52
Analysis of the African easterly jet, using aircraft observations from the JET2000 experiment, Quarterly Journal of the Royal Meteorological Society, vol.108, issue.608, pp.1461-1482, 2005. ,
DOI : 10.1256/qj.03.189
An Idealized Two-Dimensional Framework to Study the West African Monsoon. Part II: Large-Scale Advection and the Diurnal Cycle, Journal of the Atmospheric Sciences, vol.64, issue.8, pp.2783-2803, 2007. ,
DOI : 10.1175/JAS4052.1
An Idealized Two-Dimensional Framework to Study the West African Monsoon. Part I: Validation and Key Controlling Factors, Journal of the Atmospheric Sciences, vol.64, issue.8, pp.2765-2782, 2007. ,
DOI : 10.1175/JAS3919.1
Environmental characterization of global sources of atmospheric soil dust identified with the NIMBUS 7 Total Ozone Mapping Spectrometer (TOMS) absorbing aerosol product, Reviews of Geophysics, vol.103, issue.2, p.100210, 1029. ,
DOI : 10.1029/2000RG000095
On the northward shift of the West African monsoon, Climate Dynamics, vol.11, issue.3, pp.429-440, 2006. ,
DOI : 10.1007/s00382-005-0093-5
URL : https://hal.archives-ouvertes.fr/insu-00375755
African Monsoon Multidisciplinary Analysis: An International Research Project and Field Campaign, Bulletin of the American Meteorological Society, vol.87, issue.12, pp.1739-174610, 2006. ,
DOI : 10.1175/BAMS-87-12-1739
URL : https://hal.archives-ouvertes.fr/insu-00385875
Hygroscopic properties of atmospheric aerosol in Riverside, pp.383-397, 1987. ,
Temperature measurement with a sonic anemometer and its application to heat and moisture fluxes, Boundary-Layer Meteorology, vol.13, issue.1, pp.81-9310, 1983. ,
DOI : 10.1007/BF00164332
The Physics and Modelling of Wind Erosion, pp.127-128, 2000. ,
DOI : 10.1007/978-1-4020-8895-7
An Introduction to Boundary Layer Meteorology, 1988. ,
DOI : 10.1007/978-94-009-3027-8
Abrupt shift of the ITCZ over West Africa and intra-seasonal variability, Geophysical Research Letters, vol.40, issue.20, pp.3353-335610, 2000. ,
DOI : 10.1029/1999GL011285
URL : https://hal.archives-ouvertes.fr/hal-00162239
The West African monsoon dynamics. Part II: The pre-onset and onset of the summer monsoon, 016<3407:TWAMDP>2.0.CO, pp.3407-342710, 2003. ,
URL : https://hal.archives-ouvertes.fr/hal-00155510
Regional Model Simulations of the Bod??l?? Low-Level Jet of Northern Chad during the Bod??l?? Dust Experiment (BoDEx 2005), Regional model simulations of the Bodélé low-level jet of northern Chad during the Bodélé Dust Experiment, pp.995-1012, 2005. ,
DOI : 10.1175/2007JCLI1766.1
Dust and the low-level circulation over the Bodélé Depression, Chad: Observations from BoDEx, J. Geophys. Res, pp.10-1029, 2005. ,
The CALIPSO mission: spaceborne lidar for observation of aerosols and clouds, Lidar Remote Sensing for Industry and Environment Monitoring III, pp.1-11, 2003. ,
DOI : 10.1117/12.466539
Initial performance assessment of CALIOP, Geophysical Research Letters, vol.5575, issue.19, pp.10-1029, 2007. ,
DOI : 10.1029/2007GL030135
On equilibrium profiles of suspended particles , Boundary Layer Meteorol, pp.471-482, 2002. ,