Browse: Keyword: Icebergs

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Giant Iceberg in McMurdo Sound (WMS)

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Abstract:: Iceberg B-15A, in Antarctica's McMurdo Sound, is as large as Long Island, NY (3,000 square kilometers or 1,200 square miles) and is the largest fragment of a much larger iceberg that broke away from the Ross Ice Shelf in March 2000. Iceberg B-15A has trapped sea ice in McMurdo Sound, and the ice build-up presents significant problems for Antarctic penguins, which must now swim great distances to reach open waters and food. These images were taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASAs Aqua and Terra satellites between 2004-11-09 and 2005-01-17.

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: NASA GSFC Scientific Visualization Studio

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Larsen Ice Shelf Collapse (WMS)

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Abstract:: The Larsen ice shelf at the northern end of the Antarctic Peninsula experienced a dramatic collapse between January 31 and March 7, 2002. First, melt ponds appeared on the ice shelf during these summer months (seen in blue on the shelf), then a minor collapse of about 800 square kilometers occurred. Finally, a 2600 square kilometer collapse took place, leaving thousands of sliver icebergs and berg fragments where the shelf formerly lay. Brownish streaks within the floating chunks mark areas where rocks and morainal debris are exposed from the former underside and interior of the shelf. These images were acquired by the MODIS instrument on the Terra satellite.

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: NASA GSFC Scientific Visualization Studio

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Pine Island Glacier Calving (WMS)

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Abstract:: The Pine Island Glacier is the largest discharger of ice in Antarctica and the continents fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. This series of images from the MISR instrument on the Terra satellite not only shows the crack expanding and the iceberg break off, but the seaward moving glacial flow in the parts of the Pine Island Glacier upstream of the crack.

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: NASA GSFC Scientific Visualization Studio

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QuikSCAT Antarctic Sea Ice (WMS)

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Abstract:: The sea ice around Antarctica grows dramatically from late February, when large parts of the coast are ice-free, to October, when the amount of sea ice effectively doubles the size of the continent. The SeaWinds Scatterometer instrument on the QuikSCAT satellite captures this dramatic ebb and flow and shows the sea ice as dynamic and always moving, even in areas that are ice-bound. This animation shows the sea ice around Antarctica from SeaWinds during 2004. SeaWinds can see individual icebergs if they are large enough, and a large iceberg can be seen for most of the year south of South America as it moves from the Antarctic Peninsula to the South Sandwich Islands. Also visible are the very convoluted and dynamic border between the sea ice and the open sea and holes in the sea ice created by the movement around fixed land features such as islands.

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: NASA GSFC Scientific Visualization Studio

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Seasonal Ice Flow Backed Up

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Abstract:: C-19 iceberg that calved off the Ross Ice shelf and its companion B-15 iceberg, which is anchored near the coast. The two large bergs may have disrupted normal ocean circulation that clears the Ross Sea of seasonal ice during the first months of austral summer. The ice remained in the sea long past previous thaw dates, and created trouble for ships trying to bring in supplies to McMurdo research station on Ross Island. But after months of stillness, in mid-January C-19 changed position dramatically over just a few days, pivoting northward from its eastern end. The effect was like opening a floodgate, and the sea ice trapped between C-19 and B-15 poured out into the Southern Ocean.

Browse: Keyword: Icebergs

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Giant Iceberg in McMurdo Sound (WMS)

Larsen Ice Shelf Collapse (WMS)

Pine Island Glacier Calving (WMS)

QuikSCAT Antarctic Sea Ice (WMS)

Seasonal Ice Flow Backed Up

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Browse: Keyword: Icebergs

You searched for:

Refine Your Search

Giant Iceberg in McMurdo Sound (WMS)

Larsen Ice Shelf Collapse (WMS)

Pine Island Glacier Calving (WMS)

QuikSCAT Antarctic Sea Ice (WMS)

Seasonal Ice Flow Backed Up

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