The planetary boundary layer includes the portion of the atmosphere which is directly influenced by the presence of the Earth's surface. Aerosol particles trapped within the PBL can be used as tracers to study boundary-layer vertical structure and time variability. The PBL height and structure can be estimated based on the use of Raman lidar data. The method is based on the first order derivative of the range-corrected elastic signal (RCS), which is a modified version of the method defined by Seibert et al. [1] and Sicard et al. [2]. Estimates of the PBL height and structure are obtained from the above mentioned approach are compared with simultaneous estimates obtained from potential temperature profiles determined from the radiosondes launched simultaneously to lidar operation. Additional estimates of the boundary layer height are obtained from rotational Raman lidar signals, used for temperature measurements signals. Preliminary results and correlation are illustrated and discussed.

RAMAN LIDAR CHARACTERIZATION OF PBL HEIGHT AND STRUCTURE DURING COPS: COMPARISON BETWEEN DIFFERENT APPROACHES

SUMMA, DONATO;DI GIROLAMO, Paolo;STELITANO, DARIO
2012-01-01

Abstract

The planetary boundary layer includes the portion of the atmosphere which is directly influenced by the presence of the Earth's surface. Aerosol particles trapped within the PBL can be used as tracers to study boundary-layer vertical structure and time variability. The PBL height and structure can be estimated based on the use of Raman lidar data. The method is based on the first order derivative of the range-corrected elastic signal (RCS), which is a modified version of the method defined by Seibert et al. [1] and Sicard et al. [2]. Estimates of the PBL height and structure are obtained from the above mentioned approach are compared with simultaneous estimates obtained from potential temperature profiles determined from the radiosondes launched simultaneously to lidar operation. Additional estimates of the boundary layer height are obtained from rotational Raman lidar signals, used for temperature measurements signals. Preliminary results and correlation are illustrated and discussed.
2012
9789081583947
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11563/33041
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