ASCOS : Arctic Summer Cloud-Ocean Study

An international project, coordinated by Stockholm University, to investigate the interactions between the Arctic icecap, the overlying boundary layer, and the ubiquitous low-level stratiform cloud. A 6-week field campaign was conducted from the Swedish Icebreaker Oden during the summer of 2008. The Leeds group ran the surface & boundary layer micrometeorology measurement campaign in collaboration with a group from the University of Stockholm, making extensive measurements of turbulent exchange and boundary layer structure over sea ice from 15-m and 30-m masts erected on the ice, along with a turbulence-sonde carried by a tethered balloon. We also ran a SODAR to make wind profile & BL structure measurements up to about 500m.