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Arctic Ice Cover and Petermann Fjord, Glacier, and Ice Island Video Footage
The National Snow and Ice Data Center announced today, that the Arctic Ice Area Extent has reached an absolute minimum breaking the record minimum of 2007 with still several weeks of potential melting...
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Petermann Ice Island 2012 Breaking Up
Dr. Preben Gudmandsen pioneered some of the early micro-wave remote sensors 30-40 years ago that are now used routinely to monitor sea ice, snow, and glaciers. Despite being “retired” for over 20...
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CCGS Henry Larsen: People, Places, Services
The Canadian Coast Guard Ship Henry Larsen sailed this summer on a challenging science mission to Nares Strait, Petermann Glacier, and beyond. It reached its farthest North ever at 82 degrees and 15...
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Petermann Glacier Shape and Melt Channels
Radars, lasers, and fancy computers all shape the way we see the shape of glaciers. An airplane flies along a line down the glacier with (1) a good GPS. It carries (2) a vertical laser that measures...
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Petermann and Ryder Glacier Ice Island
Ice island from 2010 and 2012 calvings litter Nares Strait and northern Baffin Island, Canada. All these glacier fragments originate from Petermann and Ryder Gletscher in north-west Greenland. The...
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Nares Strait Ice Arches and Petermann Ice Island 2012
Arching barriers of ice locked solidly to land are presently closing off Nares Strait for all ice leaving or entering this ocean passage from the Arctic to the North Atlantic Oceans. Gothic cathedrals...
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Shots of Airborne Lasers at Petermann Gletscher, Greenland
If shots of whiskey make you dizzy, shots of laser stun. NASA stunned me this week, when I discovered that they provide millions such shots of Greenland from which to construct detailed images of the...
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Petermann Glacier Ice Islands: Where are they now?
Two large calving events in 2010 and 2012 reduced the floating part of Petermann Gletscher by 44 km (28 miles) in length, 6 Manhattans (380 km^2) in area, and 42 gigatons in mass. But what’s a gigaton?...
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Petermann Photos, Places, and People
Petermann Gletscher sent off Manhattan-sized islands of ice in 2010 and 2012 that now litter the eastern seaboard of Canada from its farthest northern Ellesmere Island to its farthest eastern...
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Land-Fast Ice Cover off North Greenland: Will NASA bite?
When a large outlet glacier of North Greenland (Petermann Gletscher) discharged an ice island four times the size of Manhattan in August of 2010, the United States’ Congress held formal inquiries on...
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Canyon below Ice at Petermann Gletscher
The Grand Canyon of Arizona stands tall in the mind as the Colorado River carved itself into 6000 feet of rock. A similar canyon has been discovered in northern Greenland near Petermann Gletscher. The...
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Petermann Ice Island Breaks while Plowing into the Bottom
The Manhattan-sized ice island that last year broke free of Petermann Gletscher in North Greenland plowed into the bottom and broke apart. Force equals mass times acceleration. When 18 giga tons (mass)...
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Petermann Gletscher Thawing and Thinning
Greenland’s tidewater glaciers are losing mass, through thinning and retreat, at an increasing rate. Greenland’s glaciers located north of 78 North latitude often end in ice shelves, floating...
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A Short Summary of Nares Strait Physics
The Arctic Ocean is a puddle of water covered by ice that melts, moves, and freezes. Grand and majestic rivers of Siberia and America discharge into the puddle and make it fresher than Atlantic Ocean...
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Glaciers, Geocaching, and Greenland Goals
I thought it silly when my wife suggested to go geocaching with her. She told me it was to hunt for treasures and as a professor of physical ocean science and engineering this was not for me. But my...
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Greenland Glacier Ocean Warming
The Swedish icebreaker Oden will visit Petermann Fjord in northern Greenland in 6 months time. The US National Science Foundation (NSF) funded a large geophysical and geological experiment after...
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First sensors for future Petermann Gletscher Observatory, Greenland
Two ocean sensors arrived from Germany where I used them last in an experiment off the coast of Greenland last year. I bought them in 2002 and they have been in Arctic waters most of the time where...
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Lab Notes of a Physical Oceanographer
I go to sea to learn about oceans, glaciers, weather, and climate. Despite dramatic photos of exciting field work, those action-packed scenes or serene nature shots of beauty and violence are...
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Heartbeat of Ocean and Air of Greenland
While cables are designed at a small company in southern California,while instruments are shipped to friends at the British Antarctic Survey in England, while instrument locations are contemplated by a...
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Sun Set in Nares Strait, Greenland
The sun bathed the southern reaches of Nares Strait in light again after four months of total darkness of the polar night. It is still cold, about -30 degrees centigrade, but the long shadows cast by...
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