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DOI | 10.1002/joc.6095 |
Evaluation of homogenization methods for seasonal snow depth data in the Austrian Alps, 1930-2010 | |
Marcolini, Giorgia1,2; Koch, Roland3; Chimani, Barbara3; Schoener, Wolfgang4; Bellin, Alberto1; Disse, Markus2; Chiogna, Gabriele2,5 | |
2019-09-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:11页码:4514-4530 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; Germany; Austria |
英文摘要 | Despite the importance of snow in alpine regions, little attention has been given to the homogenization of snow depth time series. Snow depth time series are generally characterized by high spatial heterogeneity and low correlation among the time series, and the homogenization thereof is therefore challenging. In this work, we present a comparison between two homogenization methods for mean seasonal snow depth time series available for Austria: the standard normal homogeneity test (SNHT) and HOMOP. The results of the two methods are generally in good agreement for high elevation sites. For low elevation sites, HOMOP often identifies suspicious breakpoints (that cannot be confirmed by metadata and only occur in relation to seasons with particularly low mean snow depth), while the SNHT classifies the time series as homogeneous. We therefore suggest applying both methods to verify the reliability of the detected breakpoints. The number of computed anomalies is more sensitive to inhomogeneities than trend analysis performed with the Mann-Kendall test. Nevertheless, the homogenized dataset shows an increased number of stations with negative snow depth trends and characterized by consecutive negative anomalies starting from the late 1980s and early 1990s, which was in agreement with the observations available for several stations in the Alps. In summary, homogenization of snow depth data is possible, relevant and should be carried out prior to performing climatological analysis. |
英文关键词 | Alps Austria homogenization HOMOP INTERP PRODIGE SNHT snow |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483703900021 |
WOS关键词 | NORMAL HOMOGENEITY TEST ; CLIMATIC-CHANGE ; CHANGE-POINTS ; SWISS ALPS ; VARIABILITY ; DISCONTINUITIES ; MODEL ; PERFORMANCE ; ALGORITHMS ; IMPACTS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186724 |
专题 | 气候变化 |
作者单位 | 1.Univ Trento, Dept Civil Environm & Mech Engn, Trento, Italy; 2.Tech Univ Munich, Fac Civil Geo & Environm Engn, Arcisstr 21, D-80333 Munich, Germany; 3.Cent Inst Meteorol & Geodynam ZAMG, Dept Climate Res, Vienna, Austria; 4.Karl Franzens Univ Graz, Dept Geog & Reg Sci, Graz, Austria; 5.Univ Innsbruck, Fac Geo & Atmospher Sci, Innsbruck, Austria |
推荐引用方式 GB/T 7714 | Marcolini, Giorgia,Koch, Roland,Chimani, Barbara,et al. Evaluation of homogenization methods for seasonal snow depth data in the Austrian Alps, 1930-2010[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(11):4514-4530. |
APA | Marcolini, Giorgia.,Koch, Roland.,Chimani, Barbara.,Schoener, Wolfgang.,Bellin, Alberto.,...&Chiogna, Gabriele.(2019).Evaluation of homogenization methods for seasonal snow depth data in the Austrian Alps, 1930-2010.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(11),4514-4530. |
MLA | Marcolini, Giorgia,et al."Evaluation of homogenization methods for seasonal snow depth data in the Austrian Alps, 1930-2010".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.11(2019):4514-4530. |
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