Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basins
The dreadful floods of 1999, 2002 and 2003 in South of France have alerted public opinion on the need for a more efficient and a further generalized national flood-forecasting system. This is why in 2003 Irstea and Meteo-France have implemented a new warning method for flash floods, including on sma...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2016-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/e3sconf/20160704013 |
| _version_ | 1819063566245822464 |
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| author | Saint-Martin Clotilde Fouchier Catherine Javelle Pierre Douvinet Johnny Vinet Freddy |
| author_facet | Saint-Martin Clotilde Fouchier Catherine Javelle Pierre Douvinet Johnny Vinet Freddy |
| author_sort | Saint-Martin Clotilde |
| collection | DOAJ |
| description | The dreadful floods of 1999, 2002 and 2003 in South of France have alerted public opinion on the need for a more efficient and a further generalized national flood-forecasting system. This is why in 2003 Irstea and Meteo-France have implemented a new warning method for flash floods, including on small watersheds, using radar rainfall data in real-time: the AIGA method. This modelling method currently provides real-time information on the magnitude of floods, but doesn’t take into account the elements at risk surrounding the river streams. Its benefit for crisis management is therefore limited as it doesn’t give information on the actual flood risk. To improve the relevance of the AIGA method, this paper shows the benefits of the combination of hydrological warnings with an exposure index, to be able to assess the risk of flood-related damage in real time. To complete this aim, this work presents an innovative and easily reproducible method to evaluate exposure to floods over large areas with simple land-use data. For validation purpose, a damage database has been implemented to test the relevance of both AIGA warnings and exposure levels. A case study on the floods of the 3rd October 2015 is presented to test the effectiveness of the combination of hazard and exposure to assess the risk of flood-related damage. This combination seems to give an accurate overview of the streams at risk, where the most important amount of damage has been observed after the flood. |
| first_indexed | 2024-12-21T15:16:43Z |
| format | Article |
| id | doaj.art-9d7a286c62eb4eadb5bfc3ab252b2900 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-21T15:16:43Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-9d7a286c62eb4eadb5bfc3ab252b29002022-12-21T18:59:09ZengEDP SciencesE3S Web of Conferences2267-12422016-01-0170401310.1051/e3sconf/20160704013e3sconf_flood2016_04013Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basinsSaint-Martin Clotilde0Fouchier Catherine1Javelle Pierre2Douvinet Johnny3Vinet Freddy4Irstea Aix-en-ProvenceIrstea Aix-en-ProvenceIrstea Aix-en-ProvenceUMR ESPACE 7300 CNRS, University of AvignonUMR GRED, University of MontpellierThe dreadful floods of 1999, 2002 and 2003 in South of France have alerted public opinion on the need for a more efficient and a further generalized national flood-forecasting system. This is why in 2003 Irstea and Meteo-France have implemented a new warning method for flash floods, including on small watersheds, using radar rainfall data in real-time: the AIGA method. This modelling method currently provides real-time information on the magnitude of floods, but doesn’t take into account the elements at risk surrounding the river streams. Its benefit for crisis management is therefore limited as it doesn’t give information on the actual flood risk. To improve the relevance of the AIGA method, this paper shows the benefits of the combination of hydrological warnings with an exposure index, to be able to assess the risk of flood-related damage in real time. To complete this aim, this work presents an innovative and easily reproducible method to evaluate exposure to floods over large areas with simple land-use data. For validation purpose, a damage database has been implemented to test the relevance of both AIGA warnings and exposure levels. A case study on the floods of the 3rd October 2015 is presented to test the effectiveness of the combination of hazard and exposure to assess the risk of flood-related damage. This combination seems to give an accurate overview of the streams at risk, where the most important amount of damage has been observed after the flood.http://dx.doi.org/10.1051/e3sconf/20160704013 |
| spellingShingle | Saint-Martin Clotilde Fouchier Catherine Javelle Pierre Douvinet Johnny Vinet Freddy Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basins E3S Web of Conferences |
| title | Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basins |
| title_full | Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basins |
| title_fullStr | Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basins |
| title_full_unstemmed | Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basins |
| title_short | Assessing the exposure to floods to estimate the risk of flood-related damage in French Mediterranean basins |
| title_sort | assessing the exposure to floods to estimate the risk of flood related damage in french mediterranean basins |
| url | http://dx.doi.org/10.1051/e3sconf/20160704013 |
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