气候变化领域集成服务门户(CCPortal): Decadal changes from a multi-temporal glacier inventory of Svalbard

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DOI	10.5194/tc-7-1603-2013
	Decadal changes from a multi-temporal glacier inventory of Svalbard
	Nuth C.; Kohler J.; König M.; Von Deschwanden A.; Hagen J.O.; Kääb A.; Moholdt G.; Pettersson R.
发表日期	2013
ISSN	19940416
卷号	7 期号:5
英文摘要	We present a multi-temporal digital inventory of Svalbard glaciers with the most recent from the late 2000s containing 33 775 km2 of glaciers covering 57% of the total land area of the archipelago. At present, 68% of the glacierized area of Svalbard drains through tidewater glaciers that have a total terminus width of ∼ 740 km. The glacierized area over the entire archipelago has decreased by an average of 80 km2 a-1over the past ∼ 30 yr, representing a reduction of 7%. For a sample of ∼ 400 glaciers (10 000 km2) in the south and west of Spitsbergen, three digital inventories are available from the 1930/60s, 1990 and 2007 from which we calculate average changes during 2 epochs. In the more recent epoch, the terminus retreat was larger than in the earlier epoch, while area shrinkage was smaller. The contrasting pattern may be explained by the decreased lateral wastage of the glacier tongues. Retreat rates for individual glaciers show a mix of accelerating and decelerating trends, reflecting the large spatial variability of glacier types and climatic/dynamic response times in Svalbard. Lastly, retreat rates estimated by dividing glacier area changes by the tongue width are larger than centerline retreat due to a more encompassing frontal change estimate with inclusion of lateral area loss. © 2013 Author(s).
学科领域	cryosphere; decadal variation; frontal feature; glacier retreat; glaciology; inventory; tidewater glacier; Arctic; Spitsbergen; Svalbard; Svalbard and Jan Mayen
语种	英语
scopus关键词	cryosphere; decadal variation; frontal feature; glacier retreat; glaciology; inventory; tidewater glacier; Arctic; Spitsbergen; Svalbard; Svalbard and Jan Mayen
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120242
作者单位	Dept. of Geosciences, University of Oslo, Oslo, Norway; Norwegian Polar Institute, Tromsø, Norway; Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, San Deigo, CA, United States; Department of Earth Sciences, Uppsala University, Uppsala, Sweden
推荐引用方式 GB/T 7714	Nuth C.,Kohler J.,König M.,et al. Decadal changes from a multi-temporal glacier inventory of Svalbard[J],2013,7(5).
APA	Nuth C..,Kohler J..,König M..,Von Deschwanden A..,Hagen J.O..,...&Pettersson R..(2013).Decadal changes from a multi-temporal glacier inventory of Svalbard.Cryosphere,7(5).
MLA	Nuth C.,et al."Decadal changes from a multi-temporal glacier inventory of Svalbard".Cryosphere 7.5(2013).