Interrelations between surface, boundary layer, and columnar aerosol properties over a continental urban site

Abstract

Abstract. PollyXT Raman Polarization Lidar observations were performed at the Remote Sensing laboratory in Warsaw (52.2109° N, 20.9826° E), Poland, in the framework of the European Aerosol Research Lidar Network (EARLINET) and the Aerosols, Clouds and Trace gases Research Infrastructure (ACTRIS). Data collected in July, August and September of 2013, 2015 and 2016 were analysed using the classical Raman approach. In total 202 sets of profiles of the particle extinction and backscatter coefficient, and linear particle depolarization ratio at 355 nm and 532 nm were derived for statistical investigations (EARLINET/ACTRIS Data Base). The main analysis was focused on intensive optical properties obtained within aerosol boundary layer (ABL). The interrelationships of different optical properties inside ABL are discussed for different periods: entire day, nocturnal time and sunrise/sunset time. In addition, the lidar derived boundary layer optical properties were compared with the columnar daytime aerosol properties derived from radiometer (MFR-7, PolandAOD-NET) and photometer (C318, AERONET). Relationships of these and surface in-situ measurements of particulate matter with an aerodynamic diameter

Properties of biomass burning aerosol mixtures derived at fine temporal and spatial scales from Raman lidar measurements: Part I optical properties

“…The aerosol boundary layer height and residual layer height (red and black dots in Fig. 1, respectively) were calculated with the wavelet method, as in Wang et al, 2018. The Atmos.…”

“…The AOD values are similar in spite of the fact that the boundary layer AOD was not taken into the mean. The climatological value of the boundary layer AOD BL reported by Wang et al, 2018, indicates that the lidar AOD FT value was 2-3 times higher. This situation is possible only in the case of very strong intrusion of aerosols in free troposphere.…”