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Marine nanogels as a source of atmospheric nanoparticles in the high Arctic
Stockholm University, Faculty of Science, Department of Meteorology .
2013 (English)In: Geophysical Research Letters, ISSN 0094-8276, Vol. 40, no 14, 3738-3743 p.Article in journal (Refereed) Published
Abstract [en]

The high Arctic (north of 80 degrees N) in summer is a region characterized by clean air and low abundances of preexisting particles. Marine colloidal nanogels i.e., assembled dissolved organic carbohydrate polymer networks have recently been confirmed to be present in both airborne particles and cloud water over the Arctic pack ice area. A novel route to atmospheric nanoparticles that appears to be operative in the high Arctic is suggested. It involves the injection of marine granular nanogels into the air from evaporating fog and cloud droplets, and is supported by observational and theoretical evidence obtained from a case study. Statistical analysis of the aerosol size distribution data recorded in the years 1991, 1996, 2001, and 2008 classified 75nanoparticle eventscovering 17% of the observed time periodas nanogel-type events, characterized by the spontaneous appearance of several distinct size bands below 200nm diameter.

Place, publisher, year, edition, pages
2013. Vol. 40, no 14, 3738-3743 p.
Keyword [en]
marine gels, atmospheric nucleation, Arctic Ocean
National Category
Meteorology and Atmospheric Sciences
URN: urn:nbn:se:su:diva-94050DOI: 10.1002/grl.50661ISI: 000323392700045OAI: diva2:651396


Available from: 2013-09-25 Created: 2013-09-24 Last updated: 2013-09-25Bibliographically approved

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