Observations of stratospheric aerosol derived from ground-based lidar during SOLAR campaign and correction of ozone profiles in Rio Gallegos – Argentina
Jacobo Omar Salvador1, Elian Augusto Wolfram2, Eduardo Jaime Quel2
1San Martín University, Argentina
2Centro de Investigaciones en Láseres y Aplicaciones, CEILAP (CITEFA-CONICET), Villa Martelli, Argentina
Since June 2005, the CEILAP Lidar Division has installed an atmospheric laboratory in the Patagonian city of Río Gallegos (51º 36’ S, 69º 19’ W), Argentina, for the measurements of stratospheric ozone, tropospheric and stratospheric aerosols and water vapour, with lidar remote sensing techniques. Other passive instruments to measure UV solar radiation are also installed in the same site (www.division.lidar.com.ar). In this paper we derive the stratospheric aerosol backscattering coefficient from the return signals of a DIAL (Differential Absorption Lidar) system with the main objective of characterize the optical properties of this kind of aerosols between 17 and 30 km height, and then to analyse the variations that the these aerosols produce in the stratospheric ozone profiles.
The authors whish to thank JICA (Japan International Cooperation Agency) for the financial support of the SOLAR campaign.