气候变化领域集成服务门户(CCPortal): Characterizing precipitation events leading to surface water flood damage over large regions of complex terrain

CCPortal

DOI	10.1088/1748-9326/ab127c
	Characterizing precipitation events leading to surface water flood damage over large regions of complex terrain
	Bernet D.B.; Trefalt S.; Martius O.; Weingartner R.; Mosimann M.; Röthlisberger V.; Zischg A.P.
发表日期	2019
ISSN	17489318
卷号	14 期号:6
英文摘要	Surface water floods (SWFs) that lead to household losses are mainly localized phenomena. Research on describing the associated precipitation characteristics has previously been based on case studies and on the derivation of local rainfall thresholds, but no approaches have yet been presented on the national scale. Here, we propose a new way to overcome this scaling problem. We linked a gridded precipitation dataset based on both rainfall gauges and radar data with geolocated insurance claims for all of Switzerland. We show that the absolute thresholds vary markedly over complex terrain, and we thus propose basing early warning systems for predicting damage-relevant SWF events on local quantiles of maximum intensity and the total sum of event precipitation. A threshold model based on these two parameters is able to classify rainfall events potentially leading to damage-relevant SWF events over large areas of complex terrain, including high mountains and lowland areas, and a variety of geological conditions. Our approach is an important step towards the development of impact-based early warning systems. Weather warning agencies or insurance companies can build upon these findings to find workarounds for issuing user-targeted warnings at national scale or for nowcasting purposes. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	impact-oriented early warning systems; insurance damage claim data; precipitation; Surface water floods
语种	英语
scopus关键词	Floods; Insurance; Landforms; Precipitation (chemical); Rain; Damage claims; Early Warning System; Geological conditions; Insurance companies; Maximum intensities; Precipitation characteristics; Precipitation events; Rainfall thresholds; Surface waters
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154556
作者单位	University of Bern, Institute of Geography, Oeschger Centre for Climate Change Research, Bern, Switzerland; University of Bern, Oeschger Centre for Climate Change Research, Mobiliar Lab for Natural Risks, Bern, Switzerland; Risk Management Solutions, Zürich, Switzerland; Division for Radar, Satellite and Nowcasting MeteoSwiss, Locarno Monti, Switzerland
推荐引用方式 GB/T 7714	Bernet D.B.,Trefalt S.,Martius O.,et al. Characterizing precipitation events leading to surface water flood damage over large regions of complex terrain[J],2019,14(6).
APA	Bernet D.B..,Trefalt S..,Martius O..,Weingartner R..,Mosimann M..,...&Zischg A.P..(2019).Characterizing precipitation events leading to surface water flood damage over large regions of complex terrain.Environmental Research Letters,14(6).
MLA	Bernet D.B.,et al."Characterizing precipitation events leading to surface water flood damage over large regions of complex terrain".Environmental Research Letters 14.6(2019).