气候变化领域集成服务门户(CCPortal): Rainfall variability from a dense rain gauge network in north-western Italy

CCPortal

DOI	10.3354/cr01517
	Rainfall variability from a dense rain gauge network in north-western Italy
	Baronetti A.; Acquaotta F.; Fratianni S.
发表日期	2018
ISSN	0936-577X
起始页码	201
结束页码	213
卷号	75 期号:3
英文摘要	The aim of this study was to investigate the spatial and temporal distribution of rainfall in Piedmont, a region in north-western Italy, in order to evaluate the high intensity precipitation events that occurred in the 2004−2016 period. A daily precipitation series of 211 ground stations, belonging to 2 different meteorological monitoring networks, were analysed. As at first step, a quality control was performed on the daily precipitation series to evaluate the homogeneity of the series. The annual rainfall events were spatialised, using the ordinary kriging method, considering the whole set of weather stations. Moreover, 5 climatic areas were identified through a cluster analysis method. In order to better understand the extreme rainfall events, the main climatic precipitation indices were calculated, using ClimPACT2 software, and the thresholds by percentile were calculated for each cluster on a daily scale to identify the different precipitation types (weak, medium, heavy, very heavy [R95p]). Non-parametric (Kolmogorov-Smirnov and Wilcoxon) and parametric (Student’s t-test) tests were applied to the annual and seasonal number of events observed for each rainfall class in order to study the statistical relationship between the clusters. The results lead to the conclusion that the investigated area is characterised by an increase in precipitation. Considering the extreme events, this methodology shows that even though the north sector is the wettest, central Piedmont is the area in which the highest number of extreme events was recorded. © Inter-Research 2018.
英文关键词	Cluster analysis; Extreme events; Kriging; Piedmont; Rainfall
语种	英语
scopus关键词	cluster analysis; extreme event; homogeneity; kriging; precipitation assessment; precipitation intensity; quality control; raingauge; spatiotemporal analysis; weather station; Italy; Piedmont [Italy]
来源期刊	Climate Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146971
作者单位	Department Earth Sciences, University of Turin, Turin, 10125, Italy; Centro Interdipartimentale sui Rischi Naturali in Ambiente Montano e Collinare, University of Turin, Turin, 10125, Italy
推荐引用方式 GB/T 7714	Baronetti A.,Acquaotta F.,Fratianni S.. Rainfall variability from a dense rain gauge network in north-western Italy[J],2018,75(3).
APA	Baronetti A.,Acquaotta F.,&Fratianni S..(2018).Rainfall variability from a dense rain gauge network in north-western Italy.Climate Research,75(3).
MLA	Baronetti A.,et al."Rainfall variability from a dense rain gauge network in north-western Italy".Climate Research 75.3(2018).