DOI: 10.1016/j.quascirev.2014.11.006
Scopus记录号: 2-s2.0-84912022946
论文题名: The evolution of a submarine landform record following recent and multiple surges of Tunabreen glacier, Svalbard
作者: Flink A.E. ; Noormets R. ; Kirchner N. ; Benn D.I. ; Luckman A. ; Lovell H.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 108 起始页码: 37
结束页码: 50
语种: 英语
英文关键词: Glacier surges
; Multibeam-bathymetric data
; Remote sensing
; Submarine landforms
; Svalbard
; Tidewater glacier
Scopus关键词: Bathymetry
; Climate models
; Geomorphology
; Glacial geology
; Glaciers
; Ice
; Maps
; Multibeam antennas
; Remote sensing
; Submarines
; Aerial Photographs
; Bathymetric data
; Glacial landforms
; Glacier surface velocity
; Satellite images
; Submarine landforms
; Svalbard
; Tidewater glaciers
; Landforms
; aerial photograph
; bathymetry
; geomorphology
; glacial landform
; Little Ice Age
; remote sensing
; satellite data
; satellite imagery
; TerraSAR-X
; tidewater glacier
; topographic mapping
; underwater environment
; Arctic
; Spitsbergen
; Svalbard
; Svalbard and Jan Mayen
英文摘要: This study focuses on the glacial landform record associated with recent surge events of Tunabreen - a calving tidewater glacier in Tempelfjorden, Spitsbergen. Submarine geomorphology and recent terminal fluctuations of Tunabreen's glacier front were studied using high-resolution multibeam-bathymetric data and a range of published and remote-sensing sources, including topographic maps, satellite images and aerial photographs. The retreat moraines in the inner part of Tempelfjorden have been correlated with glacier terminus positions during retreat from the 2004 surge maximum. Glacier surface velocity and ice-front positions derived from high-resolution TerraSAR-X satellite data show ice movements at the glacier front during minor advances of the front in winter when calving is suppressed. This suggests that the moraines have formed annually during quiescent phase winter advances.Tunabreen has experienced three surges since the Little Ice Age (LIA). This is in contrast with most Svalbard surging glaciers which have long quiescent phases and have typically only undergone one or two surges during this time. The landform record in Tempelfjorden is distinguished from previously studied glacier-surge landsystems by four, well-preserved sets of landform assemblages generated by the LIA advance and three subsequent surges, all of which partly modify earlier landform records. Based on the unique landform record in Tempelfjorden, a new conceptual landsystem model for frequently surging glaciers has been put forward improving our understanding of the dynamics of the surging glaciers and, most importantly, how they can be distinguished from the climatically-controlled glaciers in the geological record. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60045
Appears in Collections: 过去全球变化的重建
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作者单位: Departments of Arctic Geology and Arctic Geophysics, University Centre in Svalbard, Longyearbyen, Norway; Department of Physical Geography and Quaternary Geology, Stockholm University, Stockholm, Sweden; Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; Department of Geography and Sustainable Development, University of St Andrews, St Andrews, Scotland, United Kingdom; School of Geography, Queen Mary University of London, London, United Kingdom; Department of Geography, College of Science, Swansea University, United Kingdom
Recommended Citation:
Flink A.E.,Noormets R.,Kirchner N.,et al. The evolution of a submarine landform record following recent and multiple surges of Tunabreen glacier, Svalbard[J]. Quaternary Science Reviews,2015-01-01,108