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  Comparative analysis of hygroscopic properties of atmospheric aerosols at ZOTTO Siberian background station during summer and winter campaigns of 2011

Ryshkevich, T. I., Mironov, G. N., Mironova, S. Y., Vlasenko, S. S., Chi, X., Andreae, M. O., et al. (2015). Comparative analysis of hygroscopic properties of atmospheric aerosols at ZOTTO Siberian background station during summer and winter campaigns of 2011. Izvestiya Atmospheric and Oceanic Physics, 51(5), 512-519. doi:10.1134/S0001433815050114.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0000-B16C-F Version Permalink: https://hdl.handle.net/21.11116/0000-000A-4F89-4
Genre: Journal Article

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BEX593.pdf (Publisher version), 329KB
 
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Ryshkevich, T. I.1, Author
Mironov, G. N., Author
Mironova, S. Yu., Author
Vlasenko, S. S., Author
Chi, X., Author
Andreae, M. O., Author
Mikhailov, E. F., Author
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1External Organizations, ou_persistent22              

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 Abstract: The results of measurements of hygroscopic properties and chemical analysis of atmospheric aerosol samples collected from June 10 to 20 and December 15 to 25, 2011, at the ZOTTO background stations (60.8° N, 89.35° E) in Central Siberia are presented. The sorption properties of aerosols are studied with the help of a differential analyzer of absorbed water mass in the relative humidity range of 5 to 99%. It has been found that the hygroscopic growth factor of aerosol particles collected during the winter campaign is on average 45% higher than that of the aerosol collected in the summer campaign, which leads to a 40% decrease in the critical supersaturation threshold of cloud activation of particles. The measurement data are analyzed and parameterized using a new approach that takes into account the concentration effects in the particle—water vapor system at low humidities. Based on the chemical analysis, the content of water-soluble substances in the winter sample is 2.5 times higher than in the summer sample. Here, the amount of sulfates and nitrates increases 20 and 88 times, respectively. A trajectory analysis of air mass motion shows that the increased content of inorganic ions in aerosols for the winter sample is caused by long-range transport of pollutants from industrial areas of Siberia. This difference in the chemical composition is the main source of the observed difference in hygroscopic and condensation properties of the aerosol particles.

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 Dates: 2015-01-292015-10-12
 Publication Status: Published online
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 Table of Contents: -
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 Identifiers: Other: BEX593
DOI: 10.1134/S0001433815050114
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Title: Izvestiya Atmospheric and Oceanic Physics
  Other : Izv. Atmos. Ocean. Phys.
  Abbreviation : Izvestiya, Atmospheric and Oceanic Physics
Source Genre: Journal
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Publ. Info: New York, NY : Pleiades Publ.
Pages: - Volume / Issue: 51 (5) Sequence Number: - Start / End Page: 512 - 519 Identifier: ISSN: 0001-4338
CoNE: https://pure.mpg.de/cone/journals/resource/991042724377020