The Arctic Summer Cloud Ocean Study (ASCOS): overview and experimental design ...

• Main Authors: Tjernström, Michael, Leck, Caroline, Birch, Cathryn E., Bottenheim, Jan W., Brooks, Barbara J., Brooks, Ian M., Bäcklin, Leif, Chang, Rachel R.-W., de Leeuw, Gerrit, Di Liberto, Luca, De La Rosa, Sara, Granath, E., Graus, Martin, Hansel, Armin, Heintzenberg, Jost, Held, Andreas, Hind, Andrew, Johnston, Paul, Knulst, Johan, Martin, Maria, Matrai, Patricia, Mauritsen, Thorsten, Müller, Markus, Norris, Sarah J., Orellana, Mónica V., Orsini, Douglas A., Paatero, Jussi, Persson, P. Ola G., Gao, Qiuju, Rauschenberg, Carlton, Ristovski, Zoran, Sedlar, Joseph, Shupe, Matthew D., Sierau, Berko, Sirevaag, Anders, Sjögren, Staffan, Stetzer, Olaf, Swietlicki, Erik, Szczodrak, Malgorzata, Vaattovaara, Petri, Wahlberg, Niklas, Westberg, Martin, Wheeler, C.R.
• Format: Article in Journal/Newspaper
• Language: English
• Published: ETH Zurich 2014
• Subjects: Arctic; Arctic Ocean; International Polar Year; IPY; Longyearbyen; Svalbard
• Online Access: https://dx.doi.org/10.3929/ethz-b-000554458; http://hdl.handle.net/20.500.11850/554458

The climate in the Arctic is changing faster than anywhere else on earth. Poorly understood feedback processes relating to Arctic clouds and aerosol–cloud interactions contribute to a poor understanding of the present changes in the Arctic climate system, and also to a large spread in projections of future climate in the Arctic. The problem is exacerbated by the paucity of research-quality observations in the central Arctic. Improved formulations in climate models require such observations, which can only come from measurements in situ in this difficult-to-reach region with logistically demanding environmental conditions. The Arctic Summer Cloud Ocean Study (ASCOS) was the most extensive central Arctic Ocean expedition with an atmospheric focus during the International Polar Year (IPY) 2007–2008. ASCOS focused on the study of the formation and life cycle of low-level Arctic clouds. ASCOS departed from Longyearbyen on Svalbard on 2 August and returned on 9 September 2008. In transit into and out of the pack ... : Atmospheric Chemistry and Physics, 14 (6) ...