An introduction to the SCOUT-AMMA stratospheric aircraft, balloons and sondes campaign in West Africa, August 2006: rationale and roadmap

F. Cairo 1 Jean-Pierre Pommereau 2 Kathy S. Law 3 H. Schlager 4 Anne Garnier 5 F. Fierli 1 M. Ern 6 M. Streibel 7 S. Arabas 8 S. Borrmann 9, 10 Jean-Jacques Berthelier 2 C. Blom 11 T. Christensen 12 F. d'Amato 13 G. Di Donfrancesco 14 T. Deshler 15 A. Diedhiou 16 G. Durry 17 O. Engelsen 18 Florence Goutail 2 N. R. P. Harris 7 E. R. T. Kerstel 19 Sergey Khaykin 20 P. Konopka 6 A. Kylling 18 N. Larsen 12 Thierry Lebel 16 X. Liu 17 A. R. Mackenzie 21 J. Nielsen 12 A. Oulanowski 20 D. J. Parker 22 Jacques Pelon 23 J. Polcher 24 J. A. Pyle 25, 26 F. Ravegnani 1 E. D. Rivière 17 A. D. Robinson 25 T. Röckmann 27 C. Schiller 6 Fernando Simões 5, 28 L. Stefanutti 29 F. Stroh 6 L. Some 30 P. Siegmund 31 N. Sitnikov 20 Jean-Paul Vernier 2 C. M. Volk 32 C. Voigt 4, 10 M. von Hobe 6 S. Viciani 13 V. Yushkov 20
2 STRATO - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
3 TROPO - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
23 SPACE - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
26 NCAS-Climate [Cambridge]
Department of Chemistry [Cambridge, UK]
Abstract : A multi-platform field measurement campaign involving aircraft and balloons took place over West Africa between 26 July and 25 August 2006, in the frame of the concomitant AMMA Special Observing Period and SCOUT-O3 African tropical activities. Specifically aiming at sampling the upper troposphere and lower stratosphere, the high-altitude research aircraft M55 Geophysica was deployed in Ouagadougou (12.3° N, 1.7° W), Burkina Faso, in conjunction with the German D-20 Falcon, while a series of stratospheric balloons and sonde flights were conducted from Niamey (13.5° N, 2.0° E), Niger. Altogether, these measurements were intended to provide experimental evidence for a better understanding of large scale transport, assessing the effect of lightning on NOx production, and studying the impact of intense mesoscale convective systems on water, aerosol, dust and chemical species in the upper troposphere and lower stratosphere. The M55 Geophysica carried out five local and four transfer flights between southern Europe and the Sahel and back, while eight stratospheric balloons and twenty-nine sondes were flown from Niamey. These experiments allowed a characterization of the tropopause and lower stratosphere of the region. The paper provides an overview of SCOUT-AMMA campaign activities together with a description of the meteorology of the African monsoon and the situation prevailing during the flights and a brief summary of the observations accomplished.
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F. Cairo, Jean-Pierre Pommereau, Kathy S. Law, H. Schlager, Anne Garnier, et al.. An introduction to the SCOUT-AMMA stratospheric aircraft, balloons and sondes campaign in West Africa, August 2006: rationale and roadmap. Atmospheric Chemistry and Physics, European Geosciences Union, 2010, 10 (5), pp.2237-2256. ⟨10.5194/acp-10-2237-2010⟩. ⟨hal-00420046⟩

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