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How oceans interact with Greenland’s last floating glaciers
Testifying before the US Congress back in 2010, I refused to endorse the view that a first large calving at Petermann Gletscher in North Greenland was caused by global warming. When a second...
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Two Years Ocean Observing Below Petermann Glacier Greenland
A year ago today I last set foot on Petermann’s floating ice shelf. The 28th of August 2016 was a drizzly, cloudy day with water running over the surface of the glacier in small streams emptying into...
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Is Petermann Gletscher Breaking Apart this Summer?
I am disturbed by new ocean data from Greenland every morning before breakfast these days. In 2015 we built a station that probes the ocean below Petermann Gletscher every hour. Data travels from the...
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Petermann Gletscher and Greenland Climate Change
Multi-media story of two old-style scientists on a Greenland data rescue mission. Keith (Nicholls) and I were joined by Chris Mooney and Whitney Shefte of the Washington Post who just posted Whitney...
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Petermann Gletscher Ocean Station Revisited
Standing on floating Petermann Gletscher last sunday, I called my PhD student Peter Washam out of bed at 5 am via our emergency Iridium phone to check the machine that Keith Nicholls and I had just...
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The Ice Shelf of Petermann Gletscher and its Ocean Below: Descriptions
“In 1921 owing to starvation I had to go directly from Cape Heiberg-Juergensen to our cache at Cape Agassiz … during this journey the greater part of the glacier was mapped.” –Lauge Koch, 1928...
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The Ice Shelf of Petermann Gletscher, North Greenland and its ocean below:...
“In 1921 owing to starvation I had to go directly from Cape Heiberg-Juergensen to our cache at Cape Agassiz … during this journey the greater part of the glacier was mapped.” — Lauge Koch, 1928...
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Greenland Calling: Iridium Satellite Phone
I have trouble calling Petermann Gletscher, Greenland where I am collecting ocean data that feeds into a remote weather station. This station is run on a pair of car batteries, because the solar panels...
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Below Petermann Glacier: The First 100 Days
I am still stunned to see data coming to me hourly from below a glacier in northern Greenland while I sip my breakfast coffee. Each and every day for the last 100 days I got my data fix from the Ocean...
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Sun Sets over Petermann Gletscher
Lights are out. Our ocean weather station on a floating glacier of northern Greenland confirms what the U.S. Naval Observatory reports for location 60 degrees and 30 minutes West longitude and 80...
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New ocean data from floating Petermann Glacier
#UDel Ocean-Weather station #Greenland on #petermann2015 calls home from 800 m under floating glacier with 2 weeks of new hourly data. University of Delaware Ocean-Weather station on Petermann Glacier...
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Ocean Weather Below a Greenland Floating Glacier
Sensing the oceans below ice as thick as the Empire State Building is tall, we are revealing some of the mysteries of ocean melting of one of Greenland’s largest glaciers. The expedition to Petermann...
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Ocean Observing Station Reporting from Below Petermann Gletscher, Greenland
We discovered warm waters 800 meter down a hole drilled 100 m through Petermann Gletscher ice. Every hour an ocean sensor querries temperature, salinity, and pressure and reports its readings to a...
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GPS, Geocaching, and Greenland Glaciers
Navigating ice, ocean, and land, brave women and men have always used the stars for guidance. Just think of the three kings who followed a star to witness the birth of Jesus Christ in Bethlehem 2015...
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Sweden’s Icebreaker for Petermann Gletscher 2015
Sweden’s icebreaker I/B Oden will sail for Greenland this summer to pick up about 50 scientists to work the ice, land, water, and glaciers of north-west Greenland with Petermann Gletscher as its focus....
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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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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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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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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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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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