| DOI: | 10.1016/j.gloplacha.2014.06.008
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| 论文题名: | Franz Josef and Fox Glaciers, New Zealand: Historic length records |
| 作者: | Purdie H.; Anderson B.; Chinn T.; Owens I.; Mackintosh A.; Lawson W.
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| ISSN: | 0921-8529
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| 出版年: | 2014
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| 卷: | 121 | | 起始页码: | 41
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| 结束页码: | 52
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| 语种: | 英语
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| 英文关键词: | Climate change
; Debris-cover
; Fox Glacier
; Franz Josef Glacier
; Glacier length
; Reaction time
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| Scopus关键词: | Climate change
; Human reaction time
; Sensitivity analysis
; Debris-cover
; Equilibrium line altitudes
; Franz Josef
; New zealand
; Ocean-atmosphere
; Twentieth century
; Debris
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| 英文摘要: | Compilation of modern and historical length change records for Franz Josef and Fox Glaciers demonstrates that these glaciers have lost ~3km in length and at least 3-4km2 in area since the 1800s, with the greatest overall loss occurring between 1934 and 1983. Within this dramatic and ongoing retreat, both glaciers have experienced periods of re-advance. The record from Franz Josef Glacier is the most detailed, and shows major advances from 1946 to 1951 (340m), 1965-1967 (400m), 1983-1999 (1420m) and 2004-2008 (280m). At Fox Glacier the record is similar, with advances recorded during 1964-1968 (60m), 1985-1999 (710m) and 2004-2008 (290m). Apart from the latest advance event, the magnitude of advance has been greater at Franz Josef Glacier, suggesting a higher length sensitivity. Analysis of the relationship between glacier length and a reconstructed annual equilibrium line altitude (ELA) record shows that the glaciers react very quickly to ELA variations - with the greatest correlation at 3-4years' lag. The present (2014) retreat is the fastest retreat in the records of both glaciers. While decadal length fluctuations have been linked to hemispheric ocean-atmosphere variability, the overall reduction in length is a clear sign of twentieth century warming. However, documenting glacier length changes can be challenging; especially when increased surface debris-cover makes identification of the 'true' terminus a convoluted process. © 2014 Elsevier B.V. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904758450&doi=10.1016%2fj.gloplacha.2014.06.008&partnerID=40&md5=bae9eb325e91c6f9f89a457a1f2cd429
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/11435
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| Appears in Collections: | 全球变化的国际研究计划
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作者单位: | Department of Geography, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
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| Recommended Citation: | |
Purdie H.,Anderson B.,Chinn T.,et al. Franz Josef and Fox Glaciers, New Zealand: Historic length records[J],2014-01-01,121.
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