Tributaries of West Antarctic Ice Streams Revealed by RADARSAT Interferometry
Interferometric RADARSAT data are used to map ice motion in the source areas of four West Antarctic ice streams. The data reveal that tributaries, coincident with subglacial valleys, provide a spatially extensive transition between slow inland flow and rapid ice stream flow and that adjacent ice str...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 1999-10, Vol.286 (5438), p.283-286 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Joughin, Ian Gray, Laurence Bindschadler, Robert Price, Stephen Morse, David Hulbe, Christina Mattar, Karim Werner, Charles |
| description | Interferometric RADARSAT data are used to map ice motion in the source areas of four West Antarctic ice streams. The data reveal that tributaries, coincident with subglacial valleys, provide a spatially extensive transition between slow inland flow and rapid ice stream flow and that adjacent ice streams draw from shared source regions. Two tributaries flow into the stagnant ice stream C, creating an extensive region that is thickening at an average rate of 0.49 meters per year. This is one of the largest rates of thickening ever reported in Antarctica. |
| doi_str_mv | 10.1126/science.286.5438.283 |
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| ispartof | Science (American Association for the Advancement of Science), 1999-10, Vol.286 (5438), p.283-286 |
| issn | 0036-8075 1095-9203 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1859309226 |
| source | Science Magazine; JSTOR Archive Collection A-Z Listing |
| subjects | Antarctic regions Antarctica Applied geophysics Earth sciences Earth, ocean, space Exact sciences and technology Flow velocity Glaciers Ice Ice sheets Ice streams Interferometry Internal geophysics Marine and continental quaternary Speed Surficial geology Topographical elevation Tributaries |
| title | Tributaries of West Antarctic Ice Streams Revealed by RADARSAT Interferometry |
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