气候变化领域集成服务门户(CCPortal): Century-long variability and trends in daily precipitation characteristics at three Finnish stations

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DOI	10.1016/j.accre.2016.04.004
	Century-long variability and trends in daily precipitation characteristics at three Finnish stations
	Irannezhad M.; Marttila H.; Chen D.; Kløve B.
发表日期	2016
ISSN	1674-9381
卷号	7 期号:2019-01-02
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)
英文关键词	Atmospheric circulation patterns; Daily precipitation characteristics; Duration; Extremes; Finland; Frequency; Intensity; Trend analysis
语种	英语
来源期刊	Advances in Climate Change Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/89235
作者单位	Water Resources and Environmental Engineering Research Group, Faculty of Technology, University of Oulu, Oulu, 90014, Finland; Remote Sensing and Water Resources Lab, Department of Civil and Environmental Engineering, Portland State University, Portland, OR 97201, United States; Department of Earth Sciences, University of Gothenburg, Gothenburg, 40530, Sweden
推荐引用方式 GB/T 7714	Irannezhad M.,Marttila H.,Chen D.,et al. Century-long variability and trends in daily precipitation characteristics at three Finnish stations[J],2016,7(2019-01-02).
APA	Irannezhad M.,Marttila H.,Chen D.,&Kløve B..(2016).Century-long variability and trends in daily precipitation characteristics at three Finnish stations.Advances in Climate Change Research,7(2019-01-02).
MLA	Irannezhad M.,et al."Century-long variability and trends in daily precipitation characteristics at three Finnish stations".Advances in Climate Change Research 7.2019-01-02(2016).