reposiTUm: Do Changing Flood Generation Processes Promote the Occurrence of Flood Anomalies in Europe?

DC Field

Value

Language

dc.contributor.author

Tarasova, Larisa

dc.contributor.author

Lun, David

dc.contributor.author

Blöschl, Günter

dc.contributor.author

Basso, Stefano

dc.contributor.author

Miniussi, Arianna

dc.contributor.author

Bertola, Miriam

dc.contributor.author

Kumar, Rohini

dc.contributor.author

Rakovec, Oldrich

dc.contributor.author

Samaniego, Luis

dc.contributor.author

Thober, Stephan

dc.contributor.author

Merz, Ralf

dc.date.accessioned

2023-01-03T07:30:05Z

dc.date.available

2023-01-03T07:30:05Z

dc.date.issued

2021-12-16

dc.identifier.citation

<div class="csl-bib-body"> <div class="csl-entry">Tarasova, L., Lun, D., Blöschl, G., Basso, S., Miniussi, A., Bertola, M., Kumar, R., Rakovec, O., Samaniego, L., Thober, S., & Merz, R. (2021, December 16). <i>Do Changing Flood Generation Processes Promote the Occurrence of Flood Anomalies in Europe?</i> [Conference Presentation]. AGU 2021 Fall Meeting, New Orleans, United States of America (the). http://hdl.handle.net/20.500.12708/139253</div> </div>

dc.identifier.uri

http://hdl.handle.net/20.500.12708/139253

dc.description.abstract

River floods are generated by numerous processes that may change their relevance and intensity under a changing climate. Causative classification of river flood events can facilitate tracking temporal changes in the frequency of these processes across different regions. In this study we investigate decadal changes in the relevance of flood generation processes of maximum annual floods across 1415 European catchments for the period 1960-2010 and examine their relation to the occurrence of flood anomalies (i.e., flood-rich and flood-poor periods). We classified floods according to the nature of inducing precipitation events and their interaction with the antecedent catchment conditions. Flood anomalies were identified as coherent periods in time with unusually many (or few) flood events corresponding to threshold exceedances compared to the reference condition of independent and identically distributed random variables. Our analysis showed that flood generation processes are changing considerably in Europe: the portion of rainfall-driven floods occurring during dry conditions has increased in the Mediterranean and Central-Alpine regions, while rainfall-driven floods during wet conditions have become more frequent in the Atlantic and Northern regions. In all regions the number of snow-impacted events is decreasing. At the same time regional aggregation of detected flood anomalies indicates a clear switch between regionally prevailing anomalies: in the Northern and Mediterranean regions flood-rich periods in the beginning of time series switched to a flood-poor mode in later years, while in the Atlantic the switch occurred in the opposite direction. In this study we show that the compositions of flood generation processes during opposing flood anomalies have clear and contrasting differences in the four regions. Investigation of regional probability distributions of flood magnitudes of each flood group provides further insights into the relation between shifts in flood generation processes and flood anomalies indicating that future changes in flood generation processes due to changing climate might further enhance the persistence of regional flood anomalies in Europe.

dc.language.iso

dc.subject

River floods

dc.title

Do Changing Flood Generation Processes Promote the Occurrence of Flood Anomalies in Europe?

dc.type

Presentation

dc.type

Vortrag

dc.contributor.affiliation

Helmholtz Centre for Environmental Research, Germany

dc.contributor.affiliation

GenRe

dc.contributor.affiliation

Helmholtz Centre for Environmental Research, Germany

dc.contributor.affiliation

Helmholtz Centre for Environmental Research, Germany

dc.contributor.affiliation

Helmholtz Centre for Environmental Research, Germany

dc.contributor.affiliation

Helmholtz Centre for Environmental Research, Germany

dc.type.category

Conference Presentation

tuw.researchTopic.id

tuw.researchTopic.name

Environmental Monitoring and Climate Adaptation

tuw.researchTopic.name

Modeling and Simulation

tuw.researchTopic.value

tuw.linking

https://agu.confex.com/agu/fm21/meetingapp.cgi/Home/0

tuw.linking

https://agu.confex.com/agu/fm21/meetingapp.cgi/Paper/882036

tuw.publication.orgunit

E222-02 - Forschungsbereich Ingenieurhydrologie

tuw.publication.orgunit

E222 - Institut für Wasserbau und Ingenieurhydrologie

tuw.author.orcid

0000-0003-3551-9155

tuw.author.orcid

0000-0002-9765-3985

tuw.event.name

AGU 2021 Fall Meeting

tuw.event.startdate

13-12-2021

tuw.event.enddate

17-12-2021

tuw.event.online

On Site

tuw.event.type

Event for scientific audience

tuw.event.place

New Orleans

tuw.event.country

tuw.event.institution

American Geophysical Society

tuw.event.presenter

Tarasova, Larisa

wb.sciencebranch

Bauingenieurwesen

wb.sciencebranch

Umwelttechnik

wb.sciencebranch

Hydrologie

wb.sciencebranch.oefos

2011

wb.sciencebranch.oefos

2071

wb.sciencebranch.oefos

1053

wb.sciencebranch.value

item.languageiso639-1

item.openairetype

conference paper not in proceedings

item.grantfulltext

none

item.fulltext

no Fulltext

item.cerifentitytype

Publications

item.openairecristype

http://purl.org/coar/resource_type/c_18cp

crisitem.author.dept

E222 - Institut für Wasserbau und Ingenieurhydrologie

crisitem.author.dept

E222 - Institut für Wasserbau und Ingenieurhydrologie

crisitem.author.dept