Are giant waves helping to destroy Arctic ice?
The Marginal Ice Zone Program's (MIZ) has released this video wrapping up its 2014 season in the field.
The MIZ is an international project to gather data from the edges of the Arctic ice to try to work out why it is disappearing and whether giant crashing waves are part of the reason.
The season was a great success, resulting in a detailed picture of the ocean, atmosphere, and ice across the Beaufort Sea - from the fully frozen period in March to melt, breakup and right through refreezing in early autumn.
The video was taken taken 150 nautical miles (278 kilometres) from land, where oceanographer James Thomson of the University of Washington explains how researchers are tracking ocean waves.