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Volcanic sulphate and arctic dust plumes over the North Atlantic Ocean

ARAN - Access to Research at NUI Galway

Show simple item record Ovadnevaite, Jurgita en Ceburnis, Darius en Dupuy, Regis en Berresheim, Harald en O Dowd, Colin D. en 2010-02-18T12:27:53Z en 2010-02-18T12:27:53Z en 2009 en
dc.identifier.citation Ovadnevaite, J., Ceburnis, D., Plauskaite-Sukiene, K., Modini, R., Dupuy, R., Rimselyte, I., et al. (2009). Volcanic sulphate and arctic dust plumes over the North Atlantic Ocean. Atmospheric Environment, 43(32), 4968-4974. en
dc.identifier.uri en
dc.description.abstract High time resolution aerosol mass spectrometry measurements were conducted during a field campaign at Mace Head Research Station, Ireland, in June 2007. Observations on one particular day of the campaign clearly indicated advection of aerosol from volcanoes and desert plains in Iceland which could be traced with NOAA Hysplit air mass back trajectories and satellite images. In conjunction with this event, elevated levels of sulphate and light absorbing particles were encountered at Mace Head. While sulphate concentration was continuously increasing, nitrate levels remained low indicating no significant contribution from anthropogenic pollutants. Sulphate concentration increased about 3.8 µg m-3 in comparison with the background conditions. Corresponding sulphur flux from volcanic emissions was estimated to about 0.3 TgS yr-1, suggesting that a large amount of sulphur released from Icelandic volcanoes may be distributed over distances larger than 1000 km. Overall, our results corroborate that transport of volcanogenic sulphate and dust particles can significantly change the chemical composition, size distribution, and optical properties of aerosol over the North Atlantic Ocean and should be considered accordingly by regional climate models. en
dc.description.sponsorship SFI en
dc.format application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.subject Volcanic sulphate aerosol en
dc.subject Icelandic dust en
dc.subject Particle acidity en
dc.subject Aerosol properties en
dc.subject.lcsh Volcanoes -- climatic factors en
dc.subject.lcsh Atmospheric sulphur compounds en
dc.subject.lcsh Atmospheric aerosols en
dc.subject.lcsh Volcanic ash, tuff, etc. en
dc.subject.lcsh Volcanoes -- Iceland en
dc.title Volcanic sulphate and arctic dust plumes over the North Atlantic Ocean en
dc.type Article en
dc.local.publishedsource en
dc.description.peer-reviewed peer-reviewed en

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