Abstract
A new lidar station is now implemented at Buenos Aires (34.6 S, 58.5 W) since September 1994 for climate application and studies of regional processes taking place at southern mid-latitudes. Chiefly, the objective is to monitor the cloud properties, especially cirrus, and planetary boundary layer (PBL) structure on long term. The lidar operates at 532 nm, making easy a direct comparison in optical properties with other data bases available around the world. The station is in operation since late 1994, during daytime and nighttime, so a sufficient amount of data has been already collected to fulfill our primary goal. For further analysis, descriptions of the various synoptic situations and the relevant meteorological variables are available from the nearby meteo-station, along with satellite data. At present, the lidar data set is made of time series for geometrical and optical characteristics for clouds, and time series for PBL height recorded on a day-by-day basis. The station is now operated on a routine basis several days a week. A preliminary climatology for clouds, cirrus and PBL will be presented at the conference, with examples of applications as presented below.
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