Last Barrow Trip

The last trip to Barrow was timed perfectly. Last measurements were made and our equipment extracted just before the onset of a lot of surface snow melt that would have complicated snow machine travel and access to our site as well as interfering with the measurements.

The landfast ice has been very consolidated and stayed in a long time this year. Usually wind and ocean currents would have broken this ice into smaller pieces by now, allowing it to more away from shore and opening up leads (open water in the ice pack) so important for whaling. It was a terrible spring whaling season - only 3 whales from a quota of 22 strikes and 20 landings. It was the talk of the town. They'll wait now for fall whaling - hunting from boats in more open water - and pray for enough whales to see them through the winter.

We took a reccie out to the ice rubble zone, where stresses crumble the ice up and older ice is sometimes caught up in the first-year ice just grown in the last winter. I love this picture of Hajo and Matt Druckenmiller up on a huge block.

The water is a melt pond - the sun has melted snow on the ice surface but the water can't drain through the ice. As the ice warms up closer to its bulk melting point (-1.8 C) the ice actually does become porous enough to allow drainage - and this change in 'permeability' of the ice is what my work looks at.

One evening we also went 'birding' aka bird spotting. Hajo got super excited when he thought he'd seen some puffins, but it turns out they were more likely spectacles eiders (as in the ducks that give their name to eider-down). We did see tundra - and trumpeteer- swans, phalaropes, loons, snipes, different types of jaegers, and the local favourite, Steller's eider. Too bad we didn't see any snowy owls though.

We had a warm spell too - so now I've experienced -56 F and + 54 F up here (-49 to +12 C).

The on-ice equipment worked well this year, and preliminary results from the measurements with Malcolm Ingham from VUW look promising too. So all up, a good field year. I'll probably be back up in November.