| DOI: | 10.1016/j.gloplacha.2016.07.006
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| 论文题名: | Long-term changes of glaciers in north-western Spitsbergen |
| 作者: | Sobota I.; Nowak M.; Weckwerth P.
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| 刊名: | Global and Planetary Change
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| ISSN: | 0921-8181
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| 出版年: | 2016
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| 卷: | 144 | | 起始页码: | 182
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| 结束页码: | 197
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| 语种: | 英语
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| 英文关键词: | Cryosphere changes
; Glacier recession
; Glaciers
; Mass balance
; Svalbard
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| Scopus关键词: | Analysis of measurements
; Cryosphere
; Empirical formulas
; Field measurement
; Glacier mass balance
; Glacier recession
; Mass balance
; Svalbard
; Glaciers
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| 英文摘要: | This paper comprises a detailed description of glaciers of the Kaffiøyra region, an area of Svalbard, located in north-western Spitsbergen. The primary objective of this work is to present the essential conditions and characteristics of changes in the dynamics and spatial extent of the glaciers in that region. Most of the research consisted in direct field measurements carried out in 1996–2015, and the investigated changes were mainly related to the mass balance on the Waldemarbreen, the Irenebreen and the Elisebreen. In order to identify the changes of the glaciated area of the studied region, a detailed analysis of the degree of changes in the glaciers’ surface area and recession was carried out, starting with the period of their maximum extent in the late 19th and early 20th centuries, i.e. by the end of the Little Ice Age. Statistical analysis of measurement data from 1970 to 2015 enabled the development of a simple empirical formula used to work out the mass balance with a similar accuracy to that achieved using direct methods. The mean annual mass balance of the three analysed glaciers was: ˗0.72 m w.e. in the case of the Waldemarbreen in 1996–2015, − 0.84 m w.e. in the case of the Irenebreen in 2002–2015, and − 0.65 m w.e. in the case of the Elisebreen in 2006–2013. For the Waldemarbreen the change of mass balance with time was estimated to be − 0.040 (± 0.003) m w.e. a− 1. In the same period for the Irenebreen it was − 0.052 (± 0.024) m w.e. a− 1. From the time of their maximum reach in the late 19th and early 20th centuries to 2015, the total area of the Kaffiøyra region valley glaciers decreased by about 43.0% on average. Glaciers in the region retreated at an average rate of 12 ma− 1. The changes of the glaciers’ front positions, which make the north-western coast of Spitsbergen, are similar to the changes observed for other Svalbard glaciers of this type. The investigations of the glacier mass balance in the Kaffiøyra region are especially important, being some of only a few long-term mass balance records available regarding Svalbard. © 2016 Elsevier B.V. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981719106&doi=10.1016%2fj.gloplacha.2016.07.006&partnerID=40&md5=d9b81f84a4696900281bb5ef4a45ee06
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| Citation statistics: |
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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/11641
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| Appears in Collections: | 全球变化的国际研究计划
气候变化与战略
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作者单位: | Department of Hydrology and Water Management, Faculty of Earth Sciences, Nicolaus Copernicus University, Lwowska 1, Toruń, Poland
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| Recommended Citation: | |
Sobota I.,Nowak M.,Weckwerth P.. Long-term changes of glaciers in north-western Spitsbergen[J]. Global and Planetary Change,2016-01-01,144.
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