GSTDTAP  > 气候变化
DOI10.1002/joc.5183
Evidence of non-stationarity in a local climatology of rainfall extremes in northern Italy
Uboldi, Francesco1; Lussana, Cristian2
2018
发表期刊INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
EISSN1097-0088
出版年2018
卷号38期号:1页码:506-516
文章类型Article
语种英语
国家Italy; Norway
英文摘要

The stationarity of rainfall annual maxima statistics is investigated in a northern Italian area characterized by important spatial variations in orography and precipitation climatology. Climatic changes in Italian recorded temperature series are widely acknowledged. In 2016, though, there is still discussion on the stationarity of the statistics of precipitation and its extremes in Italy. By means of standard hypothesis testing techniques, it is shown, for the first time in Italy, that changes in rainfall annual maxima climatology are indeed present in the period 1950-2005, relevant with regard to global climate change. In particular, in the rainy mountainous northwestern part of Lombardy, adjacent to the Swiss and Piedmont border, the annual maxima distribution for 6 to 24-h event durations significantly moves towards higher values when going from the first half (1950-1977) to the second half (1978-2005) of the period. It is remarkable, moreover, that for 1-h duration the distribution significantly moves towards lower values, suggesting a possible change in the precipitation regime. After compensating for data density changes by bootstrap' resampling, a median increase for all durations has also been confirmed for the (less rainy) Alpine area in northeastern Lombardy. Such changes in climatology have practical importance, because stationarity is a customary assumption when rainfall annual maxima frequencies are estimated for civil engineering.


英文关键词climate change rainfall precipitation extremes Alpine climate
领域气候变化
收录类别SCI-E
WOS记录号WOS:000419093600035
WOS关键词PRECIPITATION VARIABILITY ; ALPS
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/37161
专题气候变化
作者单位1.ARIANET Srl, Via Gilino 9, I-20128 Milan, Italy;
2.Norwegian Meteorol Inst, Div Climate Serv, Oslo, Norway
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Uboldi, Francesco,Lussana, Cristian. Evidence of non-stationarity in a local climatology of rainfall extremes in northern Italy[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(1):506-516.
APA Uboldi, Francesco,&Lussana, Cristian.(2018).Evidence of non-stationarity in a local climatology of rainfall extremes in northern Italy.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(1),506-516.
MLA Uboldi, Francesco,et al."Evidence of non-stationarity in a local climatology of rainfall extremes in northern Italy".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.1(2018):506-516.
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