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DOI10.1007/s11069-021-04546-7
Analysis of the rainfall pattern triggering the Lemešná debris flow, Javorníky Range, the Czech Republic
Smolíková J.; Hrbáček F.; Blahůt J.; Klimeš J.; Vilímek V.; Loaiza Usuga J.C.
发表日期2021
ISSN0921030X
起始页码2353
结束页码2379
卷号106期号:3
英文摘要Two significant rainfall episodes affected the eastern part of the Czech Republic in May 2010 causing dozens of landslides, including a potentially damaging debris flow on Lemešná Mt. in the Javorníky Range on the 2 June 2010. The rainfall data from the rainfall gauges managed by the Czech Hydrometeorological Institute situated 7, 12 and 20 km from the debris flow were analysed and a new rainfall gauge was installed in the immediate vicinity of the debris flow. The following rainfall parameters were calculated as moving values for each day within the period from 1983 to 2018: cumulative rainfall of 2, 3, 5, 10, 20, 30, 60 days and an antecedent precipitation index of 5, 10, 20, 30, 60 days. The rainfall totals, which exceeded the debris flow triggering precipitation by many times, but no slope deformation was recorded during them, were also analysed. The debris flow triggering rainfall values were assessed and they showed a single concordance of all of the tested rainfall parameters on the day of the debris flow. We found that the combination of cumulative rainfall for 30 days together with 1-day and 3-day amounts, overall rainfall pattern and the development of the rainfall situation were more important for triggering the Lemešná debris flow than the individual rainfall extremes. This provides a new perspective to the rainfall thresholds issue. The importance of choosing the calculating method between the cumulative rainfalls and the antecedent precipitation index is illustrated by the significant differences between the values. The significance of the rainfall gauge selection is also emphasised, since the orographic position together with the distance between gauges can significantly influence the differences between on-site and measured rainfall amounts. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.
关键词Antecedent precipitationCarpathian flyschDebris flowRainfall thresholds
英文关键词debris flow; landslide; numerical model; precipitation (climatology); rainfall; slope dynamics; slope failure; threshold; Czech Republic
语种英语
来源期刊Natural Hazards
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/206575
作者单位Department of Physical Geography and Geoecology, Faculty of Science, Charles University, Albertov 6, Prague 2, 128 43, Czech Republic; Department of Geography, Faculty of Science, Masaryk University, Kotlářská 267/2, Brno, 611 37, Czech Republic; Department of Engineering Geology, Institute of Rock Structure and Mechanics, Czech Academy of Sciences, V Holešovičkách 41, Prague 8, 182 09, Czech Republic; Department of Geosciences and Environment, Faculty of Mines, Universidad Nacional de Colombia, Sede Medellín, Carrera 80 No 65-223, Medellín, Colombia
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Smolíková J.,Hrbáček F.,Blahůt J.,et al. Analysis of the rainfall pattern triggering the Lemešná debris flow, Javorníky Range, the Czech Republic[J],2021,106(3).
APA Smolíková J.,Hrbáček F.,Blahůt J.,Klimeš J.,Vilímek V.,&Loaiza Usuga J.C..(2021).Analysis of the rainfall pattern triggering the Lemešná debris flow, Javorníky Range, the Czech Republic.Natural Hazards,106(3).
MLA Smolíková J.,et al."Analysis of the rainfall pattern triggering the Lemešná debris flow, Javorníky Range, the Czech Republic".Natural Hazards 106.3(2021).
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