气候变化领域集成服务门户(CCPortal): A Unified Framework for Extreme Subdaily Precipitation Frequency Analyses Based on Ordinary Events

CCPortal

DOI	10.1029/2020GL090209
	A Unified Framework for Extreme Subdaily Precipitation Frequency Analyses Based on Ordinary Events
	Marra F.; Borga M.; Morin E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	The metastatistical extreme value approach proved promising in the frequency analysis of daily precipitation from ordinary events, outperforming traditional methods based on sampled extremes. However, subdaily applications are currently restrained by two knowledge gaps: It is not known if ordinary events can be consistently examined over durations, and it is not clear to what extent their entire distributions represent extremes. We propose here a unified definition of ordinary events across durations and suggest the simplified metastatistical extreme value formulation for dealing with extremes emerging from the tail, rather than the entire distributions, of ordinary events. This unified framework provides robust estimates of extreme quantiles (<10% error on the 100 yr from a 26 yr long record) and allows representations in which ordinary and extreme events share the scaling exponent. Future applications could improve our knowledge of subdaily extreme precipitation and help investigate the impact of local factors and climatic forcing on their frequency. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earth sciences; Geophysics; Daily precipitations; Extreme precipitation; Extreme quantiles; Frequency Analysis; Future applications; Precipitation frequency; Scaling exponent; Unified framework; Precipitation (meteorology); climate effect; climate forcing; extreme event; frequency analysis; precipitation intensity
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169714
作者单位	The Fredy and Nadine Herrmann Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem, Israel; Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Bologna, Italy; Department of Land Agriculture Environment and Forestry, University of Padua, Padua, Italy
推荐引用方式 GB/T 7714	Marra F.,Borga M.,Morin E.. A Unified Framework for Extreme Subdaily Precipitation Frequency Analyses Based on Ordinary Events[J],2020,47(18).
APA	Marra F.,Borga M.,&Morin E..(2020).A Unified Framework for Extreme Subdaily Precipitation Frequency Analyses Based on Ordinary Events.Geophysical Research Letters,47(18).
MLA	Marra F.,et al."A Unified Framework for Extreme Subdaily Precipitation Frequency Analyses Based on Ordinary Events".Geophysical Research Letters 47.18(2020).