Compositions and mixing states of aerosol particles by aircraft observations in the Arctic springtime, 2018
نویسندگان
چکیده
Abstract. Aerosol particles were collected at various altitudes in the Arctic during Polar Airborne Measurements and Regional Climate Model Simulation Project 2018 (PAMARCMiP 2018) conducted early spring of 2018. The composition, size, number fraction, mixing state individual aerosol analyzed using transmission electron microscopy (TEM), their sources transport evaluated by numerical model simulations. We found that sulfate, sea-salt, mineral-dust, K-bearing, carbonaceous major constituents. Many composed two or more compositions had coagulated coated with organic materials, both. fraction mineral-dust sea-salt decreased increasing altitude. K-bearing increased within a biomass burning (BB) plume > 3900 m, which originated from Siberia. Chlorine was replaced sulfate high altitudes. These results suggest sources, transport, aging aerosols largely vary depending on altitude air-mass history. also provide occurrences solid-particle inclusions (soot, fly-ash, Fe-aggregate particles), some are light-absorbing particles. They mainly emitted anthropogenic embedded other relatively large host Our TEM measurements revealed detailed Arctic. This information facilitates accurate evaluation influences haze, radiation balance, cloud formation, snow/ice albedo when deposited.
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2021
ISSN: ['1680-7316', '1680-7324']
DOI: https://doi.org/10.5194/acp-21-3607-2021