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 (SEDOPTICA)

Año: 2011 p. 381 - 386

2171-8814

The determination of temperature measurements from the Rayleigh scattering is an important remote sensing technique for obtaining stratospheric profiles, particularly in the high stratospherebetween 30 and 60 km high. This technique is applied to signals acquired by a lidar  (LightDetection and Ranging) called DIAL (Differential Absorption Lidar) for determination ofstratospheric ozone profiles installed since 2005 in the Patagonian city of Rio Gallegos, SantaCruz, Argentina. Currently the site is part of the UVO3Patagonia in conjunction with thelaboratory of Ozone and UV Radiation in the city of Punta Arenas, Chile distant 200 km, formore informationwww.uvo3patagonia.com. In this paper we showed the technique to measuretemperature profiles in the stratosphere between 15-60 km altitude, including the presence ofaerosols region located between 15-30 km altitude. The inversion temperature fromphotoncounting is detected from light scattered by the Rayleigh line at 355 nm generated from alaser  Quantel YG-980. An analysis of the errors involved in the inversion process and the firstresults for the period August to December 2006 is showed. The results presented in this paper arevalidated through intercomparisons with NCEP data.