File:Rapid_Sea_Ice_Breakup_along_the_Ronne-Filchner_Ice_Shelf.gif
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摘要
描述Rapid Sea Ice Breakup along the Ronne-Filchner Ice Shelf.gif |
English: Within a 24-hour space, an area of sea ice larger than the state of Rhode Island broke away from the Ronne-Filchner Ice Shelf and shattered into many smaller pieces. The long, narrow tongue of ice is a bridge of sea ice linking the A-23A iceberg to the Ronne-Filchner Ice Shelf in West Antarctica. The ice bridge is fast ice, or sea ice that does not move because it is anchored to the shore. Compared to an ice shelf, the sea ice is a thin shell of ice over the ocean. The difference in thickness is visible in the images. The taller, thicker Ronne-Filchner Ice Shelf casts a visible shadow on the ice bridge made of sea ice. This particular ice bridge breaks up and reforms regularly. Even though the images show a routine event, they provide a spectacular view of the sometimes dramatic arrival of summer in the Polar South. |
日期 | |
来源 | NASA Earth Observatory |
作者 | Jeff Schmaltz |
Images captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua and Terra satellites.
许可协议
Public domainPublic domainfalsefalse |
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本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ![]() |
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Ronne-Filchner Ice Shelf
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A-23A iceberg
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15 1 2010
image/gif
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当前 | 2010年1月15日 (五) 09:58 | ![]() | 3,200 × 2,400(12.11 MB) | Originalwana | {{Information |Description={{en|1=Within a 24-hour space, an area of sea ice larger than the state of Rhode Island broke away from the Ronne-Filchner Ice Shelf and shattered into many smaller pieces. The lo |
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