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GREENLAND-ENVIRONMENT-GLACIER
This NASA image obtained August 16, 2010 shows an image of Petermann Glacier and the new iceberg acquired from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft on August 12, 2010. It covers an area of 49.5 by 31.5 kilometers (30.7 by 19.5 miles) and is located at 81.1 degrees north latitude, 61.7 degrees west longitude. With its 14 spectral bands from the visible to the thermal infrared wavelength region and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet. Scientists are monitoring the movement of the iceberg closely. If it moves out into the narrow Nares Strait, there is the potential it could interfere with or block the loss of Arctic sea ice out of the Arctic Ocean into Baffin Bay, a sea that connects the Arctic and Atlantic Oceans. ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra spacecraft. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint US/Japan science team is responsible for validation and calibration of the instrument and the data products. AFP PHOTO/NASA/HANDOUT/RESTRICTED TO EDITORIAL USE
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-, SPACE |
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AFP / Mediafax Foto |
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HO |
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16 August 2010 |
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2048 x 1323 (612.88 KB) |
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