Ozone profiles obtained by DIAL technique at Maïdo Observatory in La Réunion Island: comparisons with ECC ozone-sondes, ground-based FTIR spectrometer and microwave radiometer measurements

Thierry Portafaix (1) , Sophie Godin-Beekmann (2) , Guillaume Payen (3) , Martine de Mazière (4) , Bavo Langerock (4) , Susana Fernandez (5) , Françoise Posny (1) , Jean-Pierre Cammas (3) , Jean-Marc Metzger (3) , Hassan Bencherif (1) , Corinne Vigouroux (4) , Nicolas Marquestaut (3)

1 LACy - Laboratoire de l'Atmosphère et des Cyclones
2 STRATO - LATMOS
3 OSU-Réunion - Observatoire des Sciences de l'Univers de La Réunion
4 BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique
5 IAP - Institute of Applied Physics [Bern]

A DIAL lidar system performing stratospheric ozone profile measurements from 15 to 45 km is installed at Reunion Island (southwest of Indian Ocean). The purpose of this communication is to present this DIAL system mounted now at the new Maïdo Observatory since February 2013, and the ozone profile retrieval. The first stratospheric ozone profiles obtained during 2013 and 2014 will be presented and discussed. Inter-comparison and differences observed with other high vertical resolution ozone profiles performed by ECC ozonesonde will be shown. Finally, comparisons with low vertical resolution ozone profiles retrieved from microwave and FTIR remote sensing measurements performed at Maïdo will be carried out, making appropriate use of the associated averaging kernels

Domaines: Physique Atmosphérique et Océanique [physics.ao-ph]

Thierry Portafaix, Sophie Godin-Beekmann, Guillaume Payen, Martine de Mazière, Bavo Langerock, et al.. Ozone profiles obtained by DIAL technique at Maïdo Observatory in La Réunion Island: comparisons with ECC ozone-sondes, ground-based FTIR spectrometer and microwave radiometer measurements . EPJ Web of Conferences, 2016, The 27th International Laser Radar Conference (ILRC 27), 119, pp.05005. ⟨10.1051/epjconf/201611905005⟩. ⟨insu-01176100⟩