Abstract
Monthly mean vertical profiles of aerosol type occurrences are determined from multiwavelength Raman and polarization lidar measurements above Haifa, Israel, in 2017. This contribution presents the applied methods and threshold values. The results are discussed for one example, May 2017. This month shows more often large, non-spherical particles in lofted layers than within the planetary boundary layer. Small particles are observed at higher altitudes only when they are observed in lower altitudes, too.
Highlights
Israel is often affected by dust that is transported towards the country, mainly from the deserts around it as investigated by Israelevich et al [1]
Mean vertical profiles of aerosol type occurrences are determined from multiwavelength Raman and polarization lidar measurements above Haifa, Israel, in 2017
The dust is uplifted within the planetary boundary layer (PBL) and advected to neighboring sites
Summary
Israel is often affected by dust that is transported towards the country, mainly from the deserts around it as investigated by Israelevich et al [1] These dust events are related to distinguished weather patterns as explored for example by Dayan et al [2]. This might be one reason for particle layers in the free troposphere. Technion - Israel Institute of Technology and Leibniz Institute for Tropospheric Research (TROPOS) cooperate in the frame of the project "3D Widefield Sky Scatterer Tomography by Lidar Anchor" For such low aerosol optical thicknesses, the "quasi"-quantities (quasiβpar(1064), δpar(532), Åpar,β,532,1064) are equal within the errors to their respective ("non-quasi") quantities
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