Aerosol Investigation During the Arctic Haze Season of 2018: Optical and Microphysical Properties
1 Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Potsdam, Germany
2 Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany
3 Institute of Mathematics, University of Potsdam, Potsdam, Germany
4 Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany
5 Institute for Environmental Physics, University of Bremen, Bremen, Germany
Published online: 7 July 2020
In this work, optical and microphysical properties of Arctic aerosol as well as their radiative impact are investigated. Air-borne Lidar observations along with ground-based measurements are evaluated for the Arctic Haze season of 2018. Aerosol abundance as inferred from particle backscatter was typical for this period of the year, with nearly spherical and large particles. The inversion of microphysical properties yielded high Refractive Index (RI) together with low Single-Scattering Albedo (SSA), suggesting absorbing particles. A fitted lognormal volume distribution revealed a fine mode with effective radius (reff) of μm and a coarse mode with reff=0.75 μm. The total radiative balance on ground was positive (12 Wm-2).
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.