气候变化领域集成服务门户(CCPortal): Glacier change in the Cariboo Mountains, British Columbia, Canada (1952-2005)

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DOI	10.5194/tc-9-65-2015
	Glacier change in the Cariboo Mountains, British Columbia, Canada (1952-2005)
	Beedle M.J.; Menounos B.; Wheate R.
发表日期	2015
ISSN	19940416
卷号	9 期号:1
英文摘要	We applied photogrammetric methods with aerial photography from 11 different years between 1946 and 2005 to assess changes in area and volume of 33 glaciers in the Cariboo Mountains of British Columbia for the latter half of the 20th century. These are used to identify changes in extent and elevation primarily for the periods 1952-1985, 1985-2005, and 1952-2005. All glaciers receded during the period 1952-2005; area retreat averaged -0.19 plusmn;0.05 %a-1. From 1952 to 1985, nine glaciers advanced; following 1985, retreat rates accelerated to -0.41 plusmn;0.12%a-1. Thinning rates of a subset of seven glaciers likewise accelerated, from -0.14plusmn;0.04mw.e.a-1 (1952-1985) to -0.50 plusmn; 0.07 mw.e. a-1 for the period 1985-2005. Temperatures increased from the earlier to the latter period for the ablation (+0.38 °C) and accumulation (+0.87 °C) seasons, and average precipitation decreased, particularly in the accumulation season (-32mm, -3.2%). Our comparison of surface area change with glacier morphometry corroborates previous studies that show primary relations between extent change and surface area. We also find that the strength and sign of these relations varied for different epochs. Our results also indicate that the 1985 glacier extent for the study area reported previously by other studies may be slightly overestimated due to errant mapping of late-lying snow cover.
学科领域	ablation; assessment method; glacial environment; mapping method; morphometry; photogrammetry; snow cover; temperature effect; Cariboo Mountains; Columbia Mountains
语种	英语
scopus关键词	ablation; assessment method; glacial environment; mapping method; morphometry; photogrammetry; snow cover; temperature effect; Cariboo Mountains; Columbia Mountains
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/119970
作者单位	Geography Program, University of Northern British Columbia, Prince George, BC, Canada
推荐引用方式 GB/T 7714	Beedle M.J.,Menounos B.,Wheate R.. Glacier change in the Cariboo Mountains, British Columbia, Canada (1952-2005)[J],2015,9(1).
APA	Beedle M.J.,Menounos B.,&Wheate R..(2015).Glacier change in the Cariboo Mountains, British Columbia, Canada (1952-2005).Cryosphere,9(1).
MLA	Beedle M.J.,et al."Glacier change in the Cariboo Mountains, British Columbia, Canada (1952-2005)".Cryosphere 9.1(2015).