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Arctic

— Environment

Arctic winter observations show higher-than-expected methane emissions

A new study led by researchers from NASA's Jet Propulsion Laboratory (JPL) and San Diego State University (SDSU) has examined the amount of methane gas escaping from the Arctic – a key component of global warming. The results go against conventional theory, finding that a much larger amount of the gas escapes during the Arctic winter than previously thought.

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— Science

Royal Navy subs provide insights for Arctic science

The National Oceanography Centre in the UK has used data on the Arctic Ocean gathered by Royal Navy submarines to study the effects of a possible future shrinking of the ice cap. This meeting of oceanography and military intelligence has seen declassified data from the 1990s analyzed to gain insights into how diminished ice cover affects turbulence in arctic waters. Read More
— Marine

Radical new icebreaker will travel through the ice sideways

Given that icebreakers clear a path for other ships by traveling through the ice head-on (or sometimes butt-on), then in order for one of them to clear a wider path, it would have to be wider and thus larger overall ... right? Well, Finland’s Arctech Helsinki Shipyard is taking a different, more efficient approach. It’s in the process of building an asymmetric-hulled icebreaker that can increase its frontal area, by making its way through the ice at an angle of up to 30 degrees. Read More
— Robotics

NASA's polar robotic ranger passes first test in one of Earth's harshest environments

NASA scientists have unleashed a new robot on the arctic terrain of Greenland to demonstrate that its ability to operate with complete autonomy in one of Earth's harshest environments. Named GROVER, which stands for both Greenland Rover and Goddard Remotely Operated Vehicle for Exploration and Research, the polar robotic ranger carries ground-penetrating radar for analysis of snow and ice, and an autonomous control system. All of that is placed between two solar panels and two snowmobile tracks. Read More
— Robotics

NASA's GROVER roves over snow for over a month

NASA's autonomous, solar-powered explorer GROVER has been kitted out with ground-penetrating radar to take to Greenland's ice sheet on Friday. There the robot will spend a month analyzing the accumulation of snow and how this contributes to the ice sheet over time. The scientists involved hope to identify a new layer of ice that has formed since summer 2012, an unusually warm summer which saw melting across 97 percent of the area of the ice sheet. During that time, an iceberg twice the size of Manhattan calved from the Petermann Glacier, part of the ice sheet. Read More
— Wearables

ColdWear project developing smart jacket for workers in the Arctic

Working on arctic oil rigs and similar sites doesn't just mean putting on a jumper and a scarf. It’s arduous, exhausting and dangerous, and requires careful judgment at all times to deal with the hostile frozen environment. To make this a bit less hazardous, the Scandinavian research organization SINTEF is developing clothing equipped with sensors to monitor temperature and activity, with an eye on helping supervisors to determine when it's time for workers to stop work and return inside. Read More
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