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- W3167086494 abstract "<p><span>During the time period December 2019 &#8211; January 2020, a lot of biomass burning has been ongoing in the Southern Hemisphere. This led to a large amount of fine dust being emitted and transported into the atmosphere of the Southern Hemisphere. </span></p><p><span>With the dispersion model FLEXPART, we will simulate these fires, using the CAMS </span><span>Global Fire Assimilation System (GFAS) which assimilates fire radiative power (FRP) observations from satellite-based sensors in order to reproduce daily estimates of biomass burning emissions. Also information on the injection height is available.</span></p><p><span>Aerosol fluxes and sources in Antarctica and its closely associated Southern Ocean are poorly constrained, in particular the particle chemistry. A detailed understanding of present-day atmospheric transport pathways of particles and of volatile organic compounds (VOC) from source to deposition in Antarctica remains essential to document biogeochemical cycles and the relative importance of natural and anthropogenic compounds. </span><span>Within the CHASE project (chase.meteo.be), the Royal Meteorological Institute of Belgium, Ghent University and the Universit&#233; Libre de Bruxelles are doing research at the Belgian research station Princess Elisabeth (71.9&#176;S, 23.3&#176;E; East Antarctica, Dronning Maud Land) on the </span><span>physical-chemical composition of both atmospheric particles, particles in surface snow particles as well as of VOCs. Since 2018, samples are taken both near the Belgian research station Princess Elisabeth (active sampling with pumps) and on a transect to the coast (passive samplers and surface snow samples). </span></p><p><span>In this contribution we will thoroughly investigate the atmospheric transport pathways of the recent biomass burning plumes, and in particular to what extent parts of these plumes have reached Antarctica. The measured chemical signatures of atmospheric particles and VOCs will help to constrain the simulations of the dispersion model.</span></p>" @default.
- W3167086494 created "2021-06-22" @default.
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- W3167086494 date "2020-03-23" @default.
- W3167086494 modified "2023-09-27" @default.
- W3167086494 title "Identifying source regions at the Princes Elisabeth station in Antarctica, using dispersion modelling tools: a case study" @default.
- W3167086494 doi "https://doi.org/10.5194/egusphere-egu2020-9127" @default.
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