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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 6, issue 10 | Copyright
Atmos. Meas. Tech., 6, 2865-2877, 2013
https://doi.org/10.5194/amt-6-2865-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 29 Oct 2013

Research article | 29 Oct 2013

Maïdo observatory: a new high-altitude station facility at Reunion Island (21° S, 55° E) for long-term atmospheric remote sensing and in situ measurements

J.-L. Baray1,2,3, Y. Courcoux4, P. Keckhut4, T. Portafaix1, P. Tulet1, J.-P. Cammas1,2, A. Hauchecorne4, S. Godin Beekmann4, M. De Mazière5, C. Hermans5, F. Desmet5, K. Sellegri3, A. Colomb3, M. Ramonet6, J. Sciare6, C. Vuillemin6, C. Hoareau7, D. Dionisi4, V. Duflot1,2,8, H. Vérèmes1,2, J. Porteneuve4, F. Gabarrot2, T. Gaudo2, J.-M. Metzger2, G. Payen2, J. Leclair de Bellevue1, C. Barthe1, F. Posny1, P. Ricaud9, A. Abchiche10, and R. Delmas1,2 J.-L. Baray et al.
  • 1LACy (Laboratoire de l'Atmosphère et des Cyclones), UMR8105, CNRS – Université de la Réunion – Météo-France, Saint Denis de la Réunion, France
  • 2UMS3365 de l'OSU-Réunion, CNRS – Université de la Réunion, Saint Denis de la Réunion, France
  • 3LaMP (Laboratoire de Météorologie Physique), UMR6016, Observatoire de Physique du Globe de Clermont-Ferrand, CNRS – Université Blaise Pascal, Clermont-Ferrand, France
  • 4LATMOS (Laboratoire Atmosphères, Milieux, Observations Spatiales), UMR8190, CNRS-UVSQ-UPMC, Guyancourt, France
  • 5BIRA-IASB (Belgian Institute for Space Aeronomy), Brussels, Belgium
  • 6LSCE (Laboratoire des Sciences du Climat et de l'Environnement), UMR8212, CEA, CNRS, UVSQ, Gif-sur-Yvette, France
  • 7LMD (Laboratoire de Météorologie Dynamique), UMR8539, CNRS, UPMC, Ecole Polytechnique, Palaiseau, France
  • 8Spectroscopie de l'Atmosphère, Service de Chimie Quantique et Photophysique, ULB (Université Libre de Bruxelles), Brussels, Belgium
  • 9CNRM-GAME (Groupe d'étude de l'Atmosphère Météorologique), UMR3589, Météo-France CNRS, Toulouse, France
  • 10Division Technique DT/INSU, CNRS, Meudon, France

Abstract. Since the nineties, atmospheric measurement systems have been deployed at Reunion Island, mainly for monitoring the atmospheric composition in the framework of NDSC/NDACC (Network for the Detection of Stratospheric Change/Network for the Detection of Atmospheric Composition Change). The location of Reunion Island presents a great interest because there are very few multi-instrumented stations in the tropics and particularly in the southern hemisphere. In 2012, a new observatory was commissioned in Maïdo at 2200 m above sea level: it hosts various instruments for atmospheric measurements, including lidar systems, spectro-radiometers and in situ gas and aerosol measurements.

This new high-altitude Maïdo station provides an opportunity:
1. to improve the performance of the optical instruments above the marine boundary layer, and to open new perspectives on upper troposphere and lower stratosphere studies;
2. to develop in situ measurements of the atmospheric composition for climate change surveys, in a reference site in the tropical/subtropical region of the southern hemisphere;
3. to offer trans-national access to host experiments or measurement campaigns for focused process studies.

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