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| Titel |
Surface velocities at Engabreen produced from time-lapse feature tracking. |
| VerfasserIn |
Alexandra Messerli, Aslak Grinsted, Miriam Jackson, Nanna Karlsson, Pierre-Marie Lefeuvre |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250096415
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| Publikation (Nr.) |
 EGU/EGU2014-11919.pdf |
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| Zusammenfassung |
| A six month long time series of images was collected from an automated camera located on the valley sides at Engabreen, northern Norway. The viewshed of the camera overlooks the dominant icefall of Engabreen. This viewshed was chosen for a number of reasons, namely that the icefall is punctuated by deep crevasses and easily tracked features. It is also difficult to instrument the icefall and so alternative methods were needed to obtain velocity measurements, and finally there was already an existing solid mast for mounting in place.
Here we present velocity fields over the icefall from 2013 and compare these to SAR produced velocity fields. The velocity fields are produced for periods where interesting subglacial and hydrological events have been identified. We detect the events from various discharge records at the glacier and pressure cells at the base of the glacier, located in the Svartisen Subglacial Laboratory (SSL). |
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