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Physical Oceanography


Warming Ocean Worsened Australia’s Fatal 2010/2011 Floods

flood

A study by a team of U.S. and Australian researchers shows that long-term warming of the Indian and Pacific oceans played an important role in increasing the severity of the devastating floods that struck Australia in 2010/2011. The study was published in Geophysical Research Letters.

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Ice, Wind & Fury

Ice, Wind & Fury

Greenlanders are well away of piteraqs, the hazardous torrents of cold air that sweep down off the ice cap. But scientists are just beginning to unravel how and when piteraqs form.

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New Study Projects That Melting of Antarctic Ice Shelves Will Intensify

New Study Projects That Melting of Antarctic Ice Shelves Will Intensify

New research published today projects a doubling of surface melting of Antarctic ice shelves by 2050 and by 2100 may surpass intensities associated with ice shelf collapse, if greenhouse gas emissions from fossil fuel consumption continues at the present rate.

Ice shelves are the floating extensions of the continent’s massive land-based ice sheets. While the melting or breakup of floating ice shelves does not directly raise sea level, ice shelves do have a “door stop” effect: They slow the flow of ice from glaciers and ice sheets into the ocean, where it melts and raises sea levels.

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Sudden Draining of Glacial Lakes Explained

In 2008 scientists from Woods Hole Oceanographic Institution (WHOI) and the University of Washington documented for the first time how the icy bottoms of lakes atop the Greenland Ice Sheet can crack open suddenly—draining the lakes completely within hours and sending torrents of water to the base of the ice sheet thousands of feet below. Now they have found a surprising mechanism that triggers the cracks.

Scientists had theorized that the sheer weight of the water in these supraglacial lakes applied pressure that eventually cracked the ice, but they could not explain why some lake bottoms cracked while others did not.

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The Waves Within the Waves

The Waves Within the Waves

If the 30-foot wave we were looking for had tumbled across the ocean’s surface that July day, it might have been mistaken for a monstrous rogue wave. But that’s not…

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The Jetyak

The Jetyak

Oceanographers are always looking for cost-effective vehicles to help them explore risky regions. Scientists at WHOI have developed one: a robotic platform called the Jetyak.

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Sea Science in the Space Age

Sea Science in the Space Age

South Asian monsoons bring huge amounts of fresh water into the Bay of Bengal. Summer Student Fellow Mara Freilich used huge data sets from satellites to how and where the salinity of the Bay changes as a result.

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A Mooring in Iceberg Alley

A Mooring in Iceberg Alley

WHOI scientists knowingly put a mooring in a fjord filled with icebergs near the terminus of a Greeland glacier. But it was their only way to learn if changing ocean conditions might be affecting how fast the glacier flowed into the ocean.

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A Drop in the Ocean

A Drop in the Ocean

How can you follow a wisp of water within the turbulent immensity of the ocean? Jim Ledwell figured out a way. He developed a method to inject a harmless chemical…

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Jet Stream Gets Fish in Hot Water

Jet Stream Gets Fish in Hot Water

WHOI scientists traced a heat wave in the North Atlantic, and the disruption of fisheries that it caused, to an unusual pattern in air circulation months earlier.

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Detours on the Oceanic Highway

Detours on the Oceanic Highway

WHOI graduate student Isabela Le Bras is exploring newly discovered complexities of the Deep Western Boundary Current, a major artery in the global ocean circulation system that transports cold water south from the North Atlantic.

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A Buoy’s Long Strange Trip

A Buoy's Long Strange Trip

Since 2004, WHOI scientists have deployed ice-tether profilers (ITPs) in polar sea ice to monitor changing conditions in the Arctic. ITP 47 found its way to the coast of Ireland.

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The Synergy Project, Part II

The Synergy Project, Part II

Back in my high school, and maybe yours too, kids naturally separated into cliques—jocks, punks, preppies, hippies, and at the extremes of the mythical left- and right-hemisphere brain spectrum, nerds…

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The Synergy Project

The Synergy Project

Back in my high school, and maybe yours too, kids naturally separated into cliques—jocks, punks, preppies, hippies, and at the extremes of the mythical left- and right-hemisphere brain spectrum, nerds…

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