Abstract
The analysis of the atmospheric boundary layer top height evolution is obtained from 2008 to 2011 in Buenos Aires using the multiwavelength lidar located at CEILAP (CITEDEF-CONICET) (34°33’ S; 58°30’ W; 17 m asl). Algorithms recognition based on covariance wavelet transform are applied to obtain seasonal statistics. This method is being evaluated for use in the Lidar Network in Argentina and it is being deployed in Patagonia region currently. The technique operates in real time in both low and high aerosol loads and with almost no human supervision.
Highlights
The Atmospheric Boundary Layer (ABL) is the lowest layer that is directly influenced by the Earths surface
Aerosol vertical structure is considered as a good tracer to determine the ABL height
Algorithms based on threshold values [2], minimum vertical gradient in the lidar profile [3], maximum in variances of signals [4] and a method that fits an idealized profile [5] are widely used
Summary
The Atmospheric Boundary Layer (ABL) is the lowest layer that is directly influenced by the Earths surface. Light detection and ranging, is a valuable tool to study the atmospheric boundary layer. This instrument works with high spectral and spatial resolution that allows identifying the ABL height. Algorithms based on threshold values [2], minimum vertical gradient in the lidar profile [3], maximum in variances of signals [4] and a method that fits an idealized profile [5] are widely used. The method can recognize the ABL height in profiles with lower signal to noise ratio than other algorithms
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