A surge of the glaciers Skobreen–Paulabreen, Svalbard, observed by time-lapse photographs and remote sensing data

Polar research

Lene Kristensen²  DouglasI.Benn³ 

[1] School of Geography and Geosciences, Irvine Building, University of St Andrews , North Street, Fife KY16 9AL, UK Correspondence;Department of Arctic Geology, The University Centre in Svalbard , Longyearbyen NO-9171, Norway;Department of Arctic Geology, The University Centre in Svalbard , Longyearbyen NO-9171, Norway

关键词: Glacier surge;    time-lapse movie;    Skobreen;    Paulabreen;    Svalbard;   

DOI  :  10.3402/polar.v31i0.11106

学科分类：自然科学（综合）

来源: Co-Action Publishing

【 摘 要 】

We present observations of a surge of the glaciers Skobreen–Paulabreen, Svalbard, during 2003–05, including a time-lapse movie of the frontal advance during 2005, Advanced Spaceborne Thermal Emission (ASTER) imagery and oblique aerial photographs. The surge initiated in Skobreen, and then propagated downglacier into the lower parts of Paulabreen. ASTER satellite images from different stages of the surge are used to evaluate the surge progression. Features on the glacier surface advanced 2800 m over 2.4 yr, averaging 3.2 m/day, while the front advanced less (ca. 1300 m) due to contemporaneous calving. The surge resulted in a lateral displacement of the medial moraines of Paulabreen of ca. 600 m at the glacier front. The time-lapse movie captured the advance of the frontal part of the glacier, and dramatically illustrates glacier dynamic processes in an accessible way. The movie documents a range of processes such as a plug-like flow of the glacier, proglacial thrusting, incorporation of old, dead ice at th...

【 授权许可】

CC BY-NC