Changes in the frequency of major floods in near-natural catchments in North America and Europe
International audience Recent major floods in North America and Europe have received much press, with some concluding that these floods are more frequent in recent years as a result of anthropogenic warming. There has therefore been considerable scientific effort invested in establishing whether obs...
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ftccsdartic:oai:HAL:hal-02599006v1 2023-05-15T16:52:26+02:00 Changes in the frequency of major floods in near-natural catchments in North America and Europe Hodgkins, G. Hannaford, J. Whitfield, P.H. Donald H. Burn, - Renard, Benjamin Fleig, A. Stahl, Konrad Madsen, H. Korhonen, J. Murphy, C; Crochet, Pierre-André Wilson, D. United States Geological Survey (USGS) CENTRE FOR ECOLOGY AND HYDROLOGY WALLINGFORD GBR Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) ENVIRONMENT CANADA VANCOUVER CAN UNIVERSITY OF WATERLOO CAN Hydrologie-Hydraulique (UR HHLY) Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) NORWEGIAN WATER RESOURCES AND ENERGY DIRECTORATE OSLO NOR UNIVERSITY OF FREIBURG DEU DHI WATER RESOURCES HØRSHOLM DNK FINNISH ENVIRONMENT INSTITUTE HELSINKI FIN NATIONAL UNIVERSITY OF IRELAND MAYNOOTH IRL ICELANDIC METEOROLOGICAL OFFICE REYKJAVIK ISL Vienna, Austria 2013-04-07 https://hal.inrae.fr/hal-02599006 en eng HAL CCSD hal-02599006 https://hal.inrae.fr/hal-02599006 IRSTEA: PUB00039395 EGU General Assembly 2013 https://hal.inrae.fr/hal-02599006 EGU General Assembly 2013, Apr 2013, Vienna, Austria. pp.1, 2013 AMERIQUE DU NORD EUROPE [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Poster communications 2013 ftccsdartic 2021-03-20T23:40:06Z International audience Recent major floods in North America and Europe have received much press, with some concluding that these floods are more frequent in recent years as a result of anthropogenic warming. There has therefore been considerable scientific effort invested in establishing whether observed flood records show evidence of trends or variability in flood frequency, and to determine whether these patterns can be linked to climatic changes. However, the river catchments used in many published studies are influenced by direct human alteration such as reservoir regulation and urbanisation, which can confound the interpretation of climate-driven variability. Furthermore, a majority of previous studies have analysed changes in low magnitude floods, such as the annual peak flow, at a national scale. Few studies are known that have analysed changes in large floods (greater than 25-year floods) on a continental scale. To fill this research gap, the current study is analysing flood flows from reference hydrologic networks (RHNs) or RHN-like gauges across a large study domain embracing North America and much of Europe. RHNs comprise gauging stations with minimally disturbed catchment conditions, which have a near-natural flow regime and provide good quality data; RHN analyses thus allow hydro-climatic variability to be distinguished from direct artificial disturbances or data inhomogeneities. One of the key innovations in this study is the definition of an RHN-like network on a continental scale. The network incorporates existing, well-established RHNs in Canada, the US, the UK, Ireland and Norway, alongside RHN-like catchments from Europe (France, Switzerland, Iceland, Denmark, Sweden, Finland), which have been incorporated in the network following a major effort to ensure RHN-like status of candidate gauges through consultation with local experts. As the aim of the study is to examine long-term variability in the number of major floods, annual exceedances of 25-, 50-, and 100-year floods during the last ... Conference Object Iceland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Canada Norway |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
AMERIQUE DU NORD EUROPE [SDE]Environmental Sciences |
spellingShingle |
AMERIQUE DU NORD EUROPE [SDE]Environmental Sciences Hodgkins, G. Hannaford, J. Whitfield, P.H. Donald H. Burn, - Renard, Benjamin Fleig, A. Stahl, Konrad Madsen, H. Korhonen, J. Murphy, C; Crochet, Pierre-André Wilson, D. Changes in the frequency of major floods in near-natural catchments in North America and Europe |
topic_facet |
AMERIQUE DU NORD EUROPE [SDE]Environmental Sciences |
description |
International audience Recent major floods in North America and Europe have received much press, with some concluding that these floods are more frequent in recent years as a result of anthropogenic warming. There has therefore been considerable scientific effort invested in establishing whether observed flood records show evidence of trends or variability in flood frequency, and to determine whether these patterns can be linked to climatic changes. However, the river catchments used in many published studies are influenced by direct human alteration such as reservoir regulation and urbanisation, which can confound the interpretation of climate-driven variability. Furthermore, a majority of previous studies have analysed changes in low magnitude floods, such as the annual peak flow, at a national scale. Few studies are known that have analysed changes in large floods (greater than 25-year floods) on a continental scale. To fill this research gap, the current study is analysing flood flows from reference hydrologic networks (RHNs) or RHN-like gauges across a large study domain embracing North America and much of Europe. RHNs comprise gauging stations with minimally disturbed catchment conditions, which have a near-natural flow regime and provide good quality data; RHN analyses thus allow hydro-climatic variability to be distinguished from direct artificial disturbances or data inhomogeneities. One of the key innovations in this study is the definition of an RHN-like network on a continental scale. The network incorporates existing, well-established RHNs in Canada, the US, the UK, Ireland and Norway, alongside RHN-like catchments from Europe (France, Switzerland, Iceland, Denmark, Sweden, Finland), which have been incorporated in the network following a major effort to ensure RHN-like status of candidate gauges through consultation with local experts. As the aim of the study is to examine long-term variability in the number of major floods, annual exceedances of 25-, 50-, and 100-year floods during the last ... |
author2 |
United States Geological Survey (USGS) CENTRE FOR ECOLOGY AND HYDROLOGY WALLINGFORD GBR Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) ENVIRONMENT CANADA VANCOUVER CAN UNIVERSITY OF WATERLOO CAN Hydrologie-Hydraulique (UR HHLY) Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) NORWEGIAN WATER RESOURCES AND ENERGY DIRECTORATE OSLO NOR UNIVERSITY OF FREIBURG DEU DHI WATER RESOURCES HØRSHOLM DNK FINNISH ENVIRONMENT INSTITUTE HELSINKI FIN NATIONAL UNIVERSITY OF IRELAND MAYNOOTH IRL ICELANDIC METEOROLOGICAL OFFICE REYKJAVIK ISL |
format |
Conference Object |
author |
Hodgkins, G. Hannaford, J. Whitfield, P.H. Donald H. Burn, - Renard, Benjamin Fleig, A. Stahl, Konrad Madsen, H. Korhonen, J. Murphy, C; Crochet, Pierre-André Wilson, D. |
author_facet |
Hodgkins, G. Hannaford, J. Whitfield, P.H. Donald H. Burn, - Renard, Benjamin Fleig, A. Stahl, Konrad Madsen, H. Korhonen, J. Murphy, C; Crochet, Pierre-André Wilson, D. |
author_sort |
Hodgkins, G. |
title |
Changes in the frequency of major floods in near-natural catchments in North America and Europe |
title_short |
Changes in the frequency of major floods in near-natural catchments in North America and Europe |
title_full |
Changes in the frequency of major floods in near-natural catchments in North America and Europe |
title_fullStr |
Changes in the frequency of major floods in near-natural catchments in North America and Europe |
title_full_unstemmed |
Changes in the frequency of major floods in near-natural catchments in North America and Europe |
title_sort |
changes in the frequency of major floods in near-natural catchments in north america and europe |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.inrae.fr/hal-02599006 |
op_coverage |
Vienna, Austria |
geographic |
Canada Norway |
geographic_facet |
Canada Norway |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
EGU General Assembly 2013 https://hal.inrae.fr/hal-02599006 EGU General Assembly 2013, Apr 2013, Vienna, Austria. pp.1, 2013 |
op_relation |
hal-02599006 https://hal.inrae.fr/hal-02599006 IRSTEA: PUB00039395 |
_version_ |
1766042688753238016 |