Towards an International Levee Performance Database (ILPD) and Its Use for Macro-Scale Analysis of Levee Breaches and Failures
| Autor: | I.E. Ozer, Sebastiaan N. Jonkman, Myron van Damme |
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| Rok vydání: | 2019 |
| Předmět: |
Return period
lcsh:Hydraulic engineering Relation (database) Computer science Geography Planning and Development 0211 other engineering and technologies 0207 environmental engineering Levee Failure flood risk 02 engineering and technology Aquatic Science computer.software_genre Biochemistry flood defences lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Internal erosion 020701 environmental engineering education database Water Science and Technology Geotechnical investigation lcsh:TD201-500 021110 strategic defence & security studies geography education.field_of_study geography.geographical_feature_category Database Flood myth Event (computing) levee failures levee breach Levee computer |
| Zdroj: | Water Volume 12 Issue 1 Water, Vol 12, Iss 1, p 119 (2019) Water, 12(1) |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w12010119 |
| Popis: | Understanding levee failures can be significantly improved by analysing historical failures, experiments and performance observations. Individual efforts have been undertaken to document flood defence failures but no systematically gathered large scale, open access dataset is currently available for thorough scientific research. Here, we introduce an efficiently structured, global database, called International Levee Performance Database (ILPD), which aims to become a valuable knowledge platform in the field of levee safety. It comprises information on levee characteristics, failure mechanisms, geotechnical investigations and breach processes for more than 1500 cases (October 2019). We provide a macro-scale analysis of the available data, aiming to provide insights on levee behaviour based on historical records. We outline common failure mechanisms of which external erosion is identified as the most frequent for levees. As an example, we investigate flood events occurred in Germany (2002, 2013) and examine breach characteristics of hundreds of failures. It is found that initial failure mechanisms have an influence on breach characteristics and that failures due to instability and internal erosion are less frequent but lead to larger breaches. Moreover, a relation between the return period and the expected breach density during a flood event is identified. These insights could complement flood risk assessments. |
| Databáze: | OpenAIRE |
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