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Comparison of aerosol optical properties at the sub-arctic stations ALOMAR-Andenes, Abisko and Sodankylä in late spring and summer 2007
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2012 (English)In: Atmospheric research, ISSN 0169-8095, E-ISSN 1873-2895, Vol. 107, p. 20-30Article in journal (Refereed) Published
Abstract [en]

Aerosol concentration and aerosol type, retrieved from observations with CIMEL sun-photometers at three sub-arctic locations at the Scandinavian Peninsula are presented. The observations were made at ALOMAR-Andenes in Norway, Abisko in Sweden and Sodankylä in Finland. This field campaign took place in late spring and summer 2007 as part of the activities of the International Polar Year (IPY) within the POLARCAT project at ALOMAR and Abisko. Aerosol properties were characterized using the relationship between the aerosol optical depth and the Ångström Exponent. The characteristics of the predominant aerosol type and microphysics are largely determined by the location of the site (continental or coastal). During summer the fine mode particles dominate, as indicated by the fine mode volume fraction and the Ångström Exponent. The aerosol concentration was on average very low, except during an event in which long-range transported aerosols (dust and pollution) were detected.

Place, publisher, year, edition, pages
2012. Vol. 107, p. 20-30
Keywords [en]
Arctic aerosol, Sun photometer, Aerosol optical depth, Angström Exponent
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Natural Sciences
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URN: urn:nbn:se:polar:diva-8266OAI: oai:DiVA.org:polar-8266DiVA, id: diva2:1302597
Available from: 2019-04-05 Created: 2019-04-05 Last updated: 2019-04-05

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