DOI: 10.1016/j.accre.2016.04.004
Scopus记录号: 2-s2.0-84976514485
论文题名: Century-long variability and trends in daily precipitation characteristics at three Finnish stations
作者: Irannezhad M. ; Marttila H. ; Chen D. ; Kløve B.
刊名: Advances in Climate Change Research
ISSN: 16749278
出版年: 2016
卷: 7, 期: 2017-01-02 起始页码: 54
结束页码: 69
语种: 英语
英文关键词: Atmospheric circulation patterns
; Daily precipitation characteristics
; Duration
; Extremes
; Finland
; Frequency
; Intensity
; Trend analysis
英文摘要: Long-term variations and trends in a wide range of statistics for daily precipitation characteristics in terms of intensity, frequency and duration in Finland were analysed using precipitation records during 1908–2008 from 3 meteorological stations in the south (Kaisaniemi), centre (Kajaani) and north (Sodankylä). Although precipitation days in northern part were more frequent than in central and southern parts, daily precipitation intensity in the south was generally higher than those in the centre and north of the country. Annual sum of very light precipitation (0 mm < daily precipitation ≤ long-term 50th percentile of daily precipitation more than 0 mm) significantly (p < 0.05) decreased over time, with the highest rate in northern Finland. These decreasing trends might be the result of significant increases in frequency of days with very light precipitation at all the stations, with the highest and lowest rates in northern and southern Finland, respectively. Ratio of annual total precipitation to number of precipitation days also declined in Finland over 1908–2008, with a decreasing north to south gradient. However, annual duration indices of daily precipitation revealed no statistically significant trends at any station. Daily precipitation characteristics showed significant relationships with various well-known atmospheric circulation patterns (ACPs). In particular, the East Atlantic/West Russia (EA/WR) pattern in summer was the most influential ACP negatively associated with different daily precipitation intensity, frequency and duration indices at all three stations studied. © 2016 National Climate Center (China Meteorological Administration) Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/58858
Appears in Collections: 气候变化与战略
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作者单位: Water Resources and Environmental Engineering Research Group, Faculty of Technology, University of Oulu, Oulu, Finland; Remote Sensing and Water Resources Lab, Department of Civil and Environmental Engineering, Portland State University, Portland, OR, United States; Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden
Recommended Citation:
Irannezhad M.,Marttila H.,Chen D.,et al. Century-long variability and trends in daily precipitation characteristics at three Finnish stations[J]. Advances in Climate Change Research,2016-01-01,7(2017-01-02)