EPJ Web of Conferences (Jan 2020)

Characterisation of Biomass Burning Aerosols in the Southern Hemispheric Midlatitudes by Multiwavelength Raman Lidar

  • Floutsi Athina Avgousta,
  • Baars Holger,
  • Seifert Patric,
  • Radenz Martin,
  • Zhenping Yin,
  • Wandinger Ulla,
  • Barja Boris,
  • Zamorano Felix,
  • Ansmann Albert

DOI
https://doi.org/10.1051/epjconf/202023703006
Journal volume & issue
Vol. 237
p. 03006

Abstract

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Vertically resolved multiwavelength aerosol Raman lidar observations were conducted in the pristine environment of the Southern-hemisphere midlatitudes at Punta Arenas, Chile (53.1346°S, 70.8834°W). In contrast to the usually prevailing clean and pristine conditions at this site, two pronounced lofted aerosol layers were observed up to 4.2 and 4.4 km height on 4 and 5 February 2019, respectively. The layers mainly consisted of biomass burning aerosols originating from the region of Central Chile, where wildfires were also observed. Based on spectrally resolved backscatter and extinction coefficients, lidar ratios and depolarization ratio a detailed characterization of the aerosol optical properties is presented.