| DOI: | 10.5194/tc-9-1401-2015
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| Scopus记录号: | 2-s2.0-84938522821
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| 论文题名: | Modelling annual mass balances of eight Scandinavian glaciers using statistical models |
| 作者: | Trachsel M; , Nesje A
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| 刊名: | Cryosphere
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| ISSN: | 19940416
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| 出版年: | 2015
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| 卷: | 9, 期:4 | | 起始页码: | 1401
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| 结束页码: | 1414
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| 语种: | 英语
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| 英文关键词: | Atlantic Multidecadal Oscillation
; glacier mass balance
; North Atlantic Oscillation
; numerical model
; precipitation (climatology)
; statistical analysis
; temperature effect
; temperature profile
; Scandinavia
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| 英文摘要: | Mass balances of Scandinavian glaciers are mainly influenced by winter precipitation and summer temperature. We used simple statistical models to assess the relative importance of summer temperature and winter precipitation for annual balances of eight glaciers in Scandinavia. Winter precipitation was more important for maritime glaciers, whereas summer temperature was more important for annual balances of continental glaciers. Most importantly relative importances of summer temperature and winter precipitation were not stable in time. For instance, winter precipitation was more important than summer temperature for all glaciers in the 25-year period 1972-1996, whereas the relative importance of summer temperature was increasing towards the present. Between 1963 and 1996 the Atlantic Multidecadal Oscillation (AMO) index was consistently negative and the North Atlantic Oscillation (NAO) Index was consistently positive between 1987 and 1995, both being favourable for glacier growth. Winter precipitation was more important than summer temperature for annual balances when only considering subsets of years with high NAO-index and negative AMO-index, respectively, whereas the importance of summer temperature was increased analysing subsets of years with low NAO-index and positive AMO-index, respectively. Hence, the relative importance of precipitation and temperature for mass balances was probably influenced by the state of the AMO and the NAO, as these two indexes are associated with changes in summer temperature (AMO) and winter precipitation (NAO). © Author(s) 2015. |
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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/75272
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| Appears in Collections: | 影响、适应和脆弱性
气候变化与战略
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作者单位: | Department of Biology, Bergen, Norway; Department of Earth Science and Uni Climate, Bergen, Norway
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| Recommended Citation: | |
Trachsel M,, Nesje A. Modelling annual mass balances of eight Scandinavian glaciers using statistical models[J]. Cryosphere,2015-01-01,9(4)
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