La variabilité spatio-temporelle des inondations dans le Fossé rhénan à la lumière de l’évolution de la vulnérabilité

Martin, Brice; Giacona, Florie; Furst, Benjamin; Edelblutte, Charlotte; Holleville, Nicolas; With, Lauriane; Heitz, Carine; Glaser, Rüdiger; Himmelsbach, Iso; Schönbein, Johannes; Boesmeier, Annette

doi:10.4000/vertigo.18488

Cited by 8 publications

(10 citation statements)

References 7 publications

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“…Most of the events have occurred since the end of the 15th century, but a few of them occurred earlier for distinct rivers, especially the Rhine, for which the time frame covered extends over more than one millennium. This article has shown that information accumulated this way and its organization by event is sufficiently rich and convenient to significantly update what was known to date about floods in the greater Alsatian region (Himmelsbach et al, 2015;Martin et al, 2017, and previous work). Specifically, it allows us to complement the results already obtained at the much larger scale of major European rivers and for specific events in the database (Martin et al, 2010).…”

Section: Focus On Individual Municipalitiesmentioning

confidence: 76%

“…in the north), with a slight slope toward the Rhine. The area is under the influence of prevailing westerly winds, and the Alsace Plain is situated in the transition area of maritime to continental climate (Minářová, 2013). Topography has a strong effect on the spatial distribution of precipitation.…”

Section: Description Of the Territorial Contextmentioning

confidence: 99%

“…Indeed, during the national survey on risk perception carried out by the IFEN in 2005, Alsatian inhabitants demonstrated their singularity by declaring that, in their opinion, earthquakes were the risks to which they were the most exposed (Roy, 2005). However, according to the Alsatian public authorities, flood risk (including urban runoff, flash floods, and rising groundwater) is likely to affect more than half of the Alsatian townships, including the major cities of Strasbourg and Mulhouse, even though their city centre has not been flooded since the end of the 19th century (Martin et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Improving the understanding of flood risk in the Alsatian region by knowledge capitalization: the ORRION participative observatory

Giacona

Martin

Furst

et al. 2019

Nat. Hazards Earth Syst. Sci.

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Abstract. Despite the strong societal impact of natural hazards, their documentation remains incomplete, with only a few inventories exceeding the past two centuries. Surprisingly enough, this also applies to Europe, a densely populated territory, and to floods, which along with storms are the most common and damage-causing natural hazard in Europe. In addition, existing inventories have often been compiled by scientists and technicians and are used for risk management in a top-down manner, although the participation of all parties concerned has been recognized as a key factor for disaster reduction. To address this double paradox, the present article presents the regional flood risk observatory ORRION for the Alsatian region, north-eastern France, and its very rich data content. Stemming from two successive interdisciplinary and transnational French–German research projects, ORRION was designed as a participative online platform on which information is shared between individuals, stakeholders, engineers, and scientists. This original approach aims at maximizing knowledge capitalization and contributes to building a common knowledge base for flood risk. ORRION is organized by events including all river floods that have likely arisen from a single synoptic situation. For each event, it documents information sources, date of occurrence, causes, and consequences in terms of damage and affected river basins and municipalities. ORRION has contributed toward renewing our knowledge of flood hazard and risk in the target area. Notably, here, long chronicles of floods are derived for 13 rivers, the Rhine and most of its main Alsatian tributaries and for all Alsatian municipalities, most of them since the end of the 15th century but over more than one millennium for the Rhine. Their main characteristics according to various typologies (seasonality, causes, severity, etc.) are analysed. Major developments over the study period related to sources, land use, and/or climate change are identified. The advantages and limitations of the approach are discussed, and the potential to expand both data exploitation and build common flood risk knowledge is outlined.

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Section: Focus On Individual Municipalitiesmentioning

confidence: 76%

Section: Description Of the Territorial Contextmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improving the understanding of flood risk in the Alsatian region by knowledge capitalization: the ORRION participative observatory

Giacona

Martin

Furst

et al. 2019

Nat. Hazards Earth Syst. Sci.

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“…Développement durable et territoires, Vol. 9, n°3 | Novembre 2018 résistance plutôt que la résilience, se révèlent particulièrement démunies, proposant tout au plus la mise en place de repères de crue, mais sans avoir la moindre idée des moyens pour y parvenir » (Martin et al, 2017). D'autres pays européens partagent ce souci depuis la Directive inondation de 2007 : « The inclusion of historical records is increasingly being seen as a valuable tool in the reassessment of flood and drought risk.…”

Section: Les Repères De Crue Et La Culture Du Risqueunclassified

“…Mais s'il existe une incitation à la pose de ces repères, elle est très différemment suivie selon les territoires. Ainsi, « aucune des 200 communes alsaciennes déjà dotées d'un PPRI 3 n'a encore, à ce jour, posé de repère de crue, malgré le caractère théoriquement obligatoire de cette mesure » (Martin et al, 2017). Certes, la législation sur l'information préventive va bien plus loin que les seuls repères de crue.…”

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Entretenir la mémoire des inondations via les repères de crue ?

Metzger¹,

David²,

Valette³

et al. 2018

developpementdurable

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Si les sociétés sont très vulnérables aux inondations, c'est notamment parce qu'elles tendent à oublier leur récurrence et à s'y soustraire avec des aménagements lourds. « Dans la grande majorité des sociétés d'aujourd'hui, des aléas qui ne se sont pas manifestés depuis longtemps n'ont aucune empreinte dans la mémoire des hommes, ni par conséquent dans leur conscience du risque » (Duvat et Magnan, 2014 : 268). Parmi les autres facteurs de vulnérabilité, on peut citer : « Le sentiment personnel d'invulnérabilité, l'incapacité à adapter son comportement au quotidien perturbé, la dépendance envers les secours officiels et les autorités, et enfin le discrédit accordé au message en lui-même et à ses instigateurs » (Labeur, 2011 : 93), ou encore le déni. 2 Or, en France, le législateur voudrait faire du repère de crue un outil territorial de (re)constitution de la culture du risque afin de réduire la vulnérabilité. Nous définissons un repère de crue comme un marquage sur un pan vertical d'une hauteur d'eau lors d'une crue passée. De nombreux chercheurs ont souligné que ces repères participent de la mémoire des inondations et plus globalement des événements historiques remarquables

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Tracing Real-Time Transnational Hydrologic Sensitivity and Crop Irrigation in the Upper Rhine Area over the Exceptional Drought Episode 2018–2020 Using Open Source Sentinel-2 Data

Kempf

Glaser

2020

Water

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Climate and regional land-use and landcover change (LUCC) impact the ecosystem of the Upper Rhine Area (URA) and transform large parts of the landscape into strongly irrigated agricultural cropland. The increase of long-term drought periods and the trend towards low summer precipitation totals trigger an increase in groundwater scarcity and amplify the negative effects of extensive irrigation purposes and freshwater consumption in a hydrologically sensitive region in Central Europe. This article presents qualitative transnational open source remote sensing temporal series of vegetation indices (NDVI) and groundwater level development to tracing near real-time vegetation change and socio-ecological feedbacks during periods of climate extremes in the Upper Rhine Area (2018–2020). Increased freshwater consumption caused a dramatic drop in groundwater availability, which eventually led to a strong degradation of the vegetation canopy and caused governmental regulations in July 2020. Assessing vegetation growth behavior and linking groundwater reactions in the URA through open source satellite data contributes to a rapidly accessible understanding of the ecosystem’s feedbacks on the local to the transnational scale and further enables risk management and eco-political regulations in current and future decision-making processes.

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La variabilité spatio-temporelle des inondations dans le Fossé rhénan à la lumière de l’évolution de la vulnérabilité

Cited by 8 publications

References 7 publications

Improving the understanding of flood risk in the Alsatian region by knowledge capitalization: the ORRION participative observatory

Improving the understanding of flood risk in the Alsatian region by knowledge capitalization: the ORRION participative observatory

Entretenir la mémoire des inondations via les repères de crue ?

Tracing Real-Time Transnational Hydrologic Sensitivity and Crop Irrigation in the Upper Rhine Area over the Exceptional Drought Episode 2018–2020 Using Open Source Sentinel-2 Data

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