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Arctic Ocean, June 2007

Drilling a hole in the sea ice to measure thickness

Snowmachines next to a melt pond

With bear guard


Don Perovich measuring albedo (reflectiveness)

Hajo Eicken and crew removing instruments frozen into ice




Subtropical Pacific Ocean, September 2005

Releasing Niskin carousel/CTD profiler from SSV Robert Seamans

On deck of SSV Seamans

In SSV Seamans galley




Other

Teton Range of Rocky Mountains, Wyoming

Tunnel through 35,000-year-old permafrost, Alaska