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Pine Island Glacier
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Pine Island Glacier
Just around the corner from the Antarctic Peninsula, the Pine Island Glacier has been the focus of scientific attention for many years. Observations over the past few decades show that the glacier has lost elevation and that the ice shelfas grounding line, where the glacier loses contact with the ground and begins to float, has retreated inland. Large numbers of deep crevasses are a sign that parts of the glacier are moving rapidly. In late 2000, a warren of deep crevasses along one edge of the glacier spawned a huge crack that propagated across the width of the glacier in less than a year, cleaving off a giant iceberg into the Amundsen Sea.
This image of Pine Island Glacier from the Landsat Image Mosaic of Antarctica (LIMA) shows the area since the big calving event. The large iceberg has drifted away from the glacieras terminus into Pine Island Bay, whose dark waters are the only contrast with the snow and ice-covered landscape surrounding it. Bluish shadows reveal the texture of the icy terrain. Long, parallel lines of lighter blue show the flow direction (from top to bottom in the image), while shorter, darker lines going across the glacier indicate crevasses. At upper left, a few bright blue dots indicate the location of melt ponds. The lower image in the pair is a close up of the dense concentration of crevasses along the margin of the glacier. A region like this one spawned the glacier-spanning crack in 2000
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Media ID 13059883
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Antarctic Antarctica Climate Change Crevasse Earth Science Floating Frost Frozen Geoscience Glacier Glaciology Global Warming Ice Covered Ice Shelf Iceberg Land Feature Landform Landmass Melting Permafrost Pond Snow Square Image Surface Terrain Texture White Drifting Meltwater Pine Island View From Space
EDITORS COMMENTS
This print showcases the Pine Island Glacier, a site of immense scientific interest situated near the Antarctic Peninsula. Over the years, extensive research has revealed alarming changes in this glacier's elevation and grounding line. The photograph captures the aftermath of a significant calving event that occurred in late 2000, resulting in a colossal iceberg breaking away into the Amundsen Sea. The image, sourced from Landsat Image Mosaic of Antarctica (LIMA), portrays an awe-inspiring landscape dominated by snow and ice. Only Pine Island Bay stands out with its dark waters contrasting against the frozen surroundings. The icy terrain exhibits intricate details through bluish shadows, revealing its unique texture. Noteworthy features within this image include long parallel lines of lighter blue indicating the direction of flow from top to bottom. Additionally, shorter and darker lines traverse across the glacier representing deep crevasses that signify rapid movement. At one corner lies a cluster of bright blue dots denoting melt ponds—a clear indication of ongoing glacial processes. A closer look at this remarkable photograph reveals an intensified concentration of crevasses along the glacier's margin—similar to those responsible for spawning the monumental crack witnessed two decades ago. Overall, this visually stunning print encapsulates both beauty and scientific significance as it documents nature's ever-changing dynamics within our planet's icy realms.
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