Temperature lidar retrieval using a Rayleigh lidar in Río Gallegos, Argentina

JACOBO O SALVADOR, ELIAN WOLFRAM, RAUL DELIA EDUARDO QUEL

Óptica Pura y Aplicada

Sociedad Española de Óptica (S.E.D.O.)

Año: 2011 vol. 44 p. 367 - 372

0030-3917

The determination of temperature measurements from the Rayleigh scattering is an important remote sensing technique for obtaining stratospheric profiles, particularly in the high stratosphere between 30 and 60 km high. This technique is applied to signals acquired by a lidar (Light Detection and Ranging) called DIAL (Differential Absorption Lidar) for determination of stratospheric ozone profiles installed since 2005 in the Patagonian city of Rio Gallegos, Santa Cruz, Argentina. Currently the site is part of the UVO3Patagonia in conjunction with the laboratory of Ozone and UV Radiation in the city of Punta Arenas, Chile distant 200 km, for more information www.uvo3patagonia.com. In this paper we showed the technique to measure temperature profiles in the stratosphere between 15-60 km altitude, including the presence of aerosols region located between 15-30 km altitude. The inversion temperature from photoncounting is detected from light scattered by the Rayleigh line at 355 nm generated from a laser Quantel YG-980. An analysis of the errors involved in the inversion process and the first results for the period August to December 2006 is showed. The results presented in this paper are validated through intercomparisons with NCEP data.