TV-video observations of bed and basal sliding on Storglaciären, Sweden
1993 (English)In: Journal of Glaciology, ISSN 0022-1430, Vol. 39, no 131, 111-118 p.Article in journal (Refereed) Published
Four boreholes in Storglaciaren, a small valley glacier in northernSweden, were inspected with a video camera. In two of the boreholes, the apparentglacier bed was filmed. In one borehole, the bed was found to be composed of softsediment, but in the other it consisted of bedrock. In the latter, the camera moved5.6 mm relative to the bed during an 80 min period. The recorded camera movementshowed a background motion which is in the expected range of basal sliding.Superimposed on the background motion, a jerky motion of a high-speed spike wasfound. The jerky motion is interpreted as a stress release induced by local topographyat the ice-bed interface.
Place, publisher, year, edition, pages
1993. Vol. 39, no 131, 111-118 p.
Natural Sciences Physical Geography
IdentifiersURN: urn:nbn:se:uu:diva-43024OAI: oai:DiVA.org:uu-43024DiVA: diva2:70928