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Posts Tagged "sea ice"

Expeditions

Neutrinos on Ice: How to Keep Cool in Thin Air

ob_tube

Editor’s Note: Welcome to ANITA, the Antarctic Impulsive Transient Antenna! From October to December, Katie Mulrey is traveling with the ANITA collaboration to Antarctica to build and launch ANITA III, a scientific balloon that uses the entire continent of Antarctica for neutrino and cosmic ray detection. This is the fourth installment in a series, “Neutrinos on Ice,” documenting that effort. [...]

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Expeditions

Off the ice in search of marine snow

sediment-traps

Editor’s Note: Woods Hole Oceanographic Institution oceanographer and photographer Chris Linder and science writer Helen Fields are taking part in a six-week cruise of the Bering Sea, a scientific expedition to study the effects of climate change on this polar ecosystem. This is the third blog post. To see all their posts, see "60 Seconds [...]

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Expeditions

Onto the Arctic sea ice?

Editor’s Note: Woods Hole Oceanographic Institution oceanographer and photographer Chris Linder and science writer Helen Fields are taking part in a six-week cruise of the Bering Sea, a scientific expedition to study the effects of climate change on this polar ecosystem. This is the first blog post. To see all their posts, see "60 Seconds [...]

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Extinction Countdown

As Sea Ice Disappears, Arctic Ringed Seals Could Get Largest Critical Habitat Ever

arctic ringed seal

Arctic ringed seals (Phoca hispida hispida) could soon get a critical habitat more than twice the size of California within the Bering, Chukchi and Beaufort seas. Under rules (pdf) proposed this week by the National Marine Fisheries Service, the seals could have more than 900,000 square kilometers of protected waters. The seals were declared threatened [...]

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Extinction Countdown

More polar bear news than you can shake a rapidly melting icicle at

Polar bears (Ursus maritimus) got a long-awaited boost on November 23 when the U.S. Fish and Wildlife Service (FWS) finally designated more than 485,000 square kilometers of “critical habitat” for the species, which is listed as “threatened” under the Endangered Species Act (ESA). The critical habitat was first proposed in October 2009, and a ruling [...]

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Observations

Mathematical Patterns in Sea Ice Reveal Melt Dynamics

Melt ponds on the surface of Arctic sea ice. Credit: Karen Frey

Some people call Ken Golden the “Indiana Jones” of mathematics due to his frequent excursions to remote, harsh parts of the world. Golden, a professor of mathematics at the University of Utah, studies the dynamics of sea ice, and he regularly goes out into the field to test his hypotheses. He has visited the Arctic [...]

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Observations

Arctic Sea Ice Reaches New Low

arctic-sea-ice-2012

The cap of ice that sits atop the North Pole has shrunk to a record extent—and there is likely still more melting to come before the end of the summer of 2012. As of August 26, Arctic sea ice extent had shrunk to 4.1 million square kilometers, below the previous record minimum of 4.17 million [...]

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