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SPACE-ANTARCTICA-ICEBERG
This NASA iceberg image released on November 28, 2014 shows NASA Earth Observatory's first look at B31 following the Southern Hemisphere winter, acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua satellite on November 22, 2014. By that date, B31 had moved west in the Amundsen Sea and was free of surrounding debris and sea ice. Scientists expect that the berg will continue moving west. Winter has lifted from Antarctica’s Pine Island Bay, covering the area in summer sun. As a result, overpassing satellites can once again acquire sunlit views of massive iceberg B31 as it drifts in the Amundsen Sea. In early November 2013, the giant iceberg separated from the front of Antarctica’s Pine Island Glacier and began to move across Pine Island Bay, a basin of the Amundsen Sea. Icebergs of this size are irregular but not infrequent in Antarctica, noted University of Sheffield geographer Grant Bigg in a recent article about B31. In fact, the Southern Ocean routinely has between 30-40 icebergs that are larger than 18 kilometers (10 nautical miles) long. Still, scientists and others will track the trajectory of B31 closely as it enters the Southern Ocean. Maritime agencies, in particular, track icebergs because of the danger they can pose to ships. AFP PHOTO/NASA EARTH OBSERVATORY/JEFF SCHMALTZ/HANDOUT = RESTRICTED TO EDITORIAL USE / MANDATORY CREDIT: "AFP PHOTO HANDOUT-NASA EARTH OBSERVATORY/JEFF SCHMALTZ"/ NO MARKETING - NO ADVERTISING CAMPAIGNS/ – NO A LA CARTE SALES / DISTRIBUTED AS A SERVICE TO CLIENTS / =
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Detalii fotografie |
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Pine Island Glacier, ANTARCTICA |
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AFP / Mediafax Foto |
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| Fotograf: |
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JEFF SCHMALTZ |
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| Data: |
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28 Noiembrie 2014 |
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2306 x 1386 (793.67 KB) |
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