Local Study of Tropopause and Cirrus Clouds Tops Heights over Buenos Aires: Preliminary results.

Cirrus clouds have recently garnered much attention due to their important role and impact on the atmospheric radiative balance. Through radiative effects, these clouds have been identified as important regulator of the global climate system. Due to the high altitude of these clouds, direct in situ measurements of their properties as well as their temporal evolution, is a difficult task. This stresses the need for active remote sensing such as LIDAR, whose capability to perceive high and optically thin cirrus makes it one of the most accurate system for cirri study. The dynamic range of backscatter LIDAR signals [1] enable to measure the altitude as well as the evolution of cirrus clouds in real time. By means of the retrievals profiles of the cirru