Polar Profiling Floats: Field Work Beringia 2005 cruise track Map showing hydrographic stations during the Beringia 2005 expedition onboard icebreaker Oden (red dots are full-depth CTD stations and white crosses are stations with microstructure measurements). Letters A-C show the deployment locations of the three Polar Profiling Floats. For a recent map showing float surfacing positions and data click here.