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| Titel |
The Negribreen glacier submarine surge system, eastern Svalbard |
| VerfasserIn |
Dag Ottesen, Julian Dowdeswell, Lilja Bjarnadottir, Valerie Bellec |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250143883
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| Publikation (Nr.) |
 EGU/EGU2017-7648.pdf |
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| Zusammenfassung |
| Many Svalbard glaciers are of surge-type, undergoing brief rapid advances followed by decades of stagnation and retreat. The detailed seafloor morphology in front of Negribreen that terminate in relatively open-marine settings in eastern Svalbard will be presented. This is based on swath-bathymetric data (10 m grid) collected by the Norwegian Hydrographic Service. The Negribreen drains from the ice cap covering most of Olav V Land in eastern Spitsbergen (fed from a basin of about 1,200 km2) and has retreated about 20 km since the last surge advance in the 1930s. The seafloor morphology beyond present glacier termini is very well preserved, providing a suite of glacial landforms related to the last surge cycle of the glacier drainage basin. The assemblage and relative chronology of the landforms are presented, together with a simple model of a full surge cycle for the glacier |
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