Katrin Iken (left) and Bodil Bluhm move deep-sea mud from the trawl net to a bucket. The benthic scientists will sieve the mud to find creatures within it for additional research.

The US Coast Guard Icebreaker HEALY.

Scientists descending to the ice below from the manlift on the U.S. Coast Guard Icebreaker HEALY. Icebreaker HEALY.

Scientists descending to the ice below from the manlift on the U.S. Coast Guard Icebreaker HEALY.

Moving Deep Sea Systems Max Rover on the deck of the U. S. Coast Guard Icebreaker HEALY.

The multinet, a device which captures small creatures in the water at different depths of the water column, is deployed off the back of the U.S. Coast Guard Icebreaker HEALY.

Deep Sea Systems Max Rover ROV returning from the deep Canada Basin.

Ice camp on the Arctic Ocean. No sign of leads or breakup in early spring in the vicinity of the camp. The camp is on multi-year ice that is approximately 4 meters thick.

Transportation to and from ice camp. Aircraft landing. University of Washington Applied Physics Laboratory Ice Camp.

Aircraft landing on the ice. University of Washington Applied Physics Laboratory Ice Camp.

Unloading gear for scientific studies of ice. University of Washington Applied Physics Laboratory Ice Camp.

Home sweet home at the ice camp. 1500 meters of water directly below. University of Washington Applied Physics Laboratory Ice Camp.

Fuel oil drums and living and working spaces at ice camp. University of Washington Applied Physics Laboratory Ice Camp.

Circus Circus to the left and communications shed to right at ice camp. University of Washington Applied Physics Laboratory Ice Camp.

Helicopter transportation for studies of ice in vicinity of ice camp. University of Washington Applied Physics Laboratory Ice Camp.

Placing an ice beacon that measures air temperature and pressure and monitors motion of ice. Transport by helicopter.

Placing an ice beacon that measures air temperature and pressure and monitors motion of ice.

An ice ice beacon that measures air temperature and pressure and monitors motion of ice.

Dr. Pablo Clemente-Colon next to a Metocean ice beacon on a frigid early spring day.

Identifying number of Metocean ice beacon.

Sensor package anchored in ice.

Hole drilled for placing ice buoy. Surprising amount of vegetative debris in ice.

Placing sensors for ice stress buoy.

Ice stress buoy sensor array.

Ice stress buoy sensor array.

Ice stress buoy sensor array.

Moon over Circus Circus at the University of Washington Applied Physics Laboratory Ice Camp. At 73 North in the Beaufort Sea.

Freight plane at Ice Camp.

Freight plane passing overhead at the University of Washington Applied Physics Laboratory Ice Camp at 73 North in the Beaufort Sea.

Snow-mobiles used to transport scientists checking sensor array along opening lead.

Snow-mobiles used to transport scientists checking sensor array. Area of ice blocks and ridges.

Meteorological sensor array set on the ice.

An SVP-BT buoy in new ice in a lead.

Transporting the electromagnetic induction bird by helicopter. This instrument measures the thickness of the ice.

Ice sensor package with a sliver of setting sun.

Preparing the electromagnetic induction bird for deployment by helicopter. This instrument measures the thickness of the ice.

Beginning to transport the electromagnetic induction bird by helicopter. This instrument measures the thickness of the ice.

An SVP-BT buoy in new ice in a lead.

An SVP-BT buoy in new ice in a lead.

Dr. Pablo Clemente-Colon carefully retrieving an SVP-BT buoy in newly frozen ice in a lead. This requires extreme caution as the ice is very thin and there is 1500 meters of very cold water below the ice.

The top of an SVP-BT buoy frozen into the ice and covered by snow. A re-freezing lead is shown here.

Entering data on the ice.

Taking measurements to ridge.

A Metocean ice beacon that measures air temperature and pressure and monitors ice motion.

Servicing a Metocean ice beacon buoy.

Hole cut through ice for SCUBA diving operations.

Monitoring an ice diver conducting studies below the ice.

Ice diver returning to egress hole.

Ice diver at egress hole.

Marker flag painted black and orange to assure visibility against the white background.