Flood Hazard Assessment and Mitigation

Fattorelli, S.; Fontana, Giancarlo Dalla; Ros, D. Da

doi:10.1007/978-3-642-58609-5_2

Cited by 7 publications

(6 citation statements)

References 16 publications

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“…Sediments are intermittently mobilized and deposited. During floods, sediment‐bound pollutants can undergo large‐scale dispersion of contaminants in flood plains, dike foreshores and polder areas (Fattorelli et al. 1999).…”

Section: In Situ Treatment Of River Sedimentsmentioning

confidence: 99%

“…Sediments are intermittently mobilized and deposited. During floods, sediment-bound pollutants can undergo large-scale dispersion of contaminants in flood plains, dike foreshores and polder areas (Fattorelli et al 1999). Apart from seasonal floodings of polder areas and flood plains (Miehlich 1987;Schuster & Miehlich 1989;Friese et al 2000), there were catastrophic floodings in the recent past because of extreme rainfall and the failure of dams (e.g.…”

Section: In Situ Treatment Of River Sedimentsmentioning

confidence: 99%

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Sediment dynamics and pollutant mobility in rivers: An interdisciplinary approach

Förstner

2004

Lakes & Reservoirs

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Characteristic dynamic features of sediment-related processes in rivers include dramatic effects of stormwater events on particle transport, rapid and far-reaching effects of sulphide oxidation during resuspension, and biological accumulation and potential release of toxic chemicals. Pollutant mobility is the net result of the stabilizing and mobilizing effects in both hydraulic and chemical fields. In practice, emphasis has to be given to fine-grained sediments and suspended matter as these materials exhibit large surface areas and high sorption capacities. Organic materials are highly reactive. Degradation of organic matter will induce oxygen depletion and might enhance formation of flocs and biofilms. Study of variations of sediment and water chemistry should predominantly include changes of pH and redox conditions, competition of dissolved ions and processes such as complexation by organic substances. Major questions relate to the potential reduction of sorption sites on minerals and degradation of organic carrier materials. All these processes will influence solution/solid equilibrium conditions and have to be studied prior to modelling the overall effects of pollutants on the water body and aquatic ecosystems. With respect to handling and remediation of contaminated river sediments, either in-place or excavated, a chemical and biological characterization of the material, of the (disposal) site and of the long-term processes is crucial. Passive techniques (e.g. in situ stabilization, subaqueous capping) provide economic advantages as there are no operation costs following their installation. However, the success of these ecological and geochemical engineering approaches is mainly based on an in-depth knowledge of the underlying processes.

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Section: In Situ Treatment Of River Sedimentsmentioning

confidence: 99%

Section: In Situ Treatment Of River Sedimentsmentioning

confidence: 99%

Sediment dynamics and pollutant mobility in rivers: An interdisciplinary approach

Förstner

2004

Lakes & Reservoirs

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“…On the global scale, flood is one of the most destructive natural hazards, with rising numbers both in terms of the people affected by flooding and the damage attributable to floods (Fattorelli et al, 1999). For example, experts calculated that the annual flood-related losses in Germany may rise from about €500 million in 2001 up to €2 billion by 2100 (Hattermann et al, 2016;Thieken et al, 2016;Thieken et al, 2005).…”

Section: Flooding On Mental Health?mentioning

confidence: 99%

We can help us: Does Community Resilience Buffer Against the Negative Impact of Flooding on Mental Health?

Masson¹,

Bamberg²,

Stricker³

et al. 2019

Preprint

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Abstract. Empirical evidence on the relationship between social support and post-disaster mental health provides support for a general beneficial effect of social support (main-effect model; Wheaton, 1985). From a theoretical perspective, a buffering effect of social support on the relationship between disaster-related stress and mental health also seems plausible (stress-buffering-model; ibid.). Previous studies however a) have paid less attention to the buffering effect of social support and b) they have mainly relied on interpersonal support (but not collective-level support such as community resilience) when investigating this issue. This work might has underestimated the effect of support on post-disaster mental health. Building on a sample of residents in Germany recently affected by flooding (N = 118), we show that community resilience to flooding (but not general interpersonal social support) buffered against the negative effects of flooding on post-disaster mental health. The results support the stress-buffering model and call for a more detailed look at the relationship between support/resilience and post-disaster adjustment, including collective-level variables.

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“…To mitigate these impacts, it is crucial to understand the relationship between rainfall and runoff, which will improve the accuracy of runoff estimates and help the government better plan for flood management. For example, by having precise and reliable rainfall runoff models, governments can ensure the construction of adequate flood control systems, such as retention ponds and drainage systems, which will help reduce the risk of future floods [6,7].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of Deforestation on Decadal Runoffs in Malaysia Using the Revised Curve Number Rainfall Runoff Approach

Khor

Lim

Ling

2023

Water

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This study presents a revised and calibrated Soil Conservation Service (SCS) curve number (CN) rainfall runoff model for predicting runoff in Malaysia using a new power correlation Ia = SL, where L represents the initial abstraction coefficient ratio. The traditional SCS-CN model with the proposed relation Ia = 0.2S is found to be unreliable, and the revised model exhibits improved accuracy. The study emphasizes the need to design flood control infrastructure based on the maximum estimated runoff amount to avoid underestimation of the runoff volume. If the flood control infrastructure is designed based on the optimum CN0.2 values, it could lead to an underestimation of the runoff volume of 50,100 m3 per 1 km2 catchment area in Malaysia. The forest areas reduced by 25% in Peninsular Malaysia from the 1970s to the 1990s and 9% in East Malaysia from the 1980s to the 2010s, which was accompanied by an increase in decadal runoff difference, with the most significant rises of 108% in Peninsular Malaysia from the 1970s to the 1990s and 32% in East Malaysia from the 1980s to the 2010s. This study recommends taking land use changes into account during flood prevention planning to effectively address flood issues. Overall, the findings of this study have significant implications for flood prevention and land use management in Malaysia. The revised model presents a viable alternative to the conventional SCS-CN model, with a focus on estimating the maximum runoff amount and accounting for land use alterations in flood prevention planning. This approach has the potential to enhance flood management in the region.

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Flood Hazard Assessment and Mitigation

Cited by 7 publications

References 16 publications

Sediment dynamics and pollutant mobility in rivers: An interdisciplinary approach

Sediment dynamics and pollutant mobility in rivers: An interdisciplinary approach

We can help us: Does Community Resilience Buffer Against the Negative Impact of Flooding on Mental Health?

Evaluating the Effect of Deforestation on Decadal Runoffs in Malaysia Using the Revised Curve Number Rainfall Runoff Approach

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