Rainfall Flooding in Urban Areas in the Context of Geomorphological Aspects

Walczykiewicz, Tomasz; Skonieczna, Magdalena

doi:10.3390/geosciences10110457

Cited by 15 publications

(5 citation statements)

References 10 publications

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“…As documented elsewhere [73,91,120,121], the spatial distribution of flood-induced ground effects and the main flood-flow directions over the valley floor highlighted the interference of anthropogenic linear structures (e.g., roads, railways, walls, and levees) on flood propagation and, thus, on triggering erosional and depositional processes in all three cities considered. According to witnesses, many of these works served as barriers; they locally raised the water level, causing temporary but noteworthy differences in building inundation, and often collapsed, triggering sudden localized flood waves [94].…”

Section: Urban Expansion and Floodssupporting

confidence: 60%

Integrated Approach for the Study of Urban Expansion and River Floods Aimed at Hydrogeomorphic Risk Reduction

Mandarino,

Faccini,

Luino

et al. 2023

Remote Sensing

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Urbanization in flood-prone areas is a critical issue worldwide. The historical floods, the urban expansion in terms of building footprint, the extent and construction period of inundated buildings with reference to two representative floods (5–6 November 1994 and 24–25 November 2016), and the ground effects and dynamics of these events were investigated in the cities of Garessio, Ceva, and Clavesana, along the Tanaro River (NW Italy). An integrated approach based on historical data analysis, photograph interpretation, field surveys, and GIS investigations was adopted, and novel metrics for quantitative analysis of urbanization and flood exposure at the individual-building scale were introduced. The considered cities were hit by damaging floods several times over the last centuries and experienced an increase in built-up surface after the mid-19th century, especially between the 1930s and 1994. The 1994 and 2016 high-magnitude floods highlighted that urban expansion largely occurred in flood-prone areas, and anthropogenic structures conditioned flood propagation. One of the rare Italian cases of the relocation of elements exposed to floods is documented. This research aims to emphasize the relevance of information on past floods and urbanization processes for land planning and land management and the need for land use planning for flood control to forbid new urban expansion in potentially floodable areas. The outcomes represent an essential knowledge base to define effective and sustainable management measures to mitigate hydrogeomorphic risk.

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Section: Urban Expansion and Floodssupporting

confidence: 60%

Integrated Approach for the Study of Urban Expansion and River Floods Aimed at Hydrogeomorphic Risk Reduction

Mandarino,

Faccini,

Luino

et al. 2023

Remote Sensing

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“…Moreover, Poland's cities struggle with sub-urbanisation and the density of development, which results in excess surface sealing. It, in its turn, increases the risk of flooding, especially flash floods (Walczykiewicz & Skonieczna, 2020). Over the last few years, however, urban adaptation to climate change has generated more interest in rainwater management.…”

Section: Results Of the Researchmentioning

confidence: 99%

Analysis of operator models for rainwater management in Poland – towards the integrated management model

Rosiek

2023

EiS

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Over the last decade, Poland has witnessed a statutory change in the definition of rainwater. It stopped being regarded as wastewater. Municipalities in Poland have developed different models for rainwater management and various ways of financing them. The aim of the study is to identify and describe the most important elements of rainwater management models in Poland with the use of operators. It focused not only on constitutive features of the system but also on financial aspects, such as fees and investments (with the omission of fiscal ones). The study helped to identify three organisationally distinguishable operator models and indicated strengths and weaknesses of each of them. Such a systematic and structured analysis lays the groundwork for the assessment of these models and enables other municipalities to make a conscious decision on which model to implement.

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“…Many European Union policies and laws promote sustainable development, land use, and urban safety. Identifying the locations of rainfall flooding areas and developing accurate maps based on them are crucial for spatial planning and flood management at the local scale [9]. It is equally important to conduct susceptibility and exposure studies.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Exposure of Urban Areas the Pluvial Flood Risk Using the Method of Analytic Hierarchy Process

Skonieczna¹,

Walczykiewicz²

2023

Preprint

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The report [1] shows that in many European cities the sewer system is older than 40 years, potentially reducing their ability to cope with more intense pluvial flooding [2] addition to climate change, urbanization is an important factor increasing the flooding risk, as it increases of impervious surfaces. Flash floods are particularly troublesome, causing not only the overloading of drainage systems [3], but also urban transport disruption, affecting human health, and contributing to pollution due to untreated sewage discharges [4]. Pluvial floods in urban areas are caused by short-duration precipitation, high intensity and on small scale. Such rainfall is difficult to predict and does not always apply to catchment areas. In Poland, heavy rainfall lasts relatively short, from a few minutes to a few, at most, several hours [5]. The method of the Analytic Hierarchy Process (AHP) was used to rank the importance of criteria characterizing exposure in urban areas. The ranking is based on expert judgements. The article focuses on exposure which is one of the components of risk. Geographical Information System (GIS) is integrated with Multicriteria Decision Analysis (MCDA) to evaluate exposure of urban area on pluvial floods.

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Rainfall Flooding in Urban Areas in the Context of Geomorphological Aspects

Cited by 15 publications

References 10 publications

Integrated Approach for the Study of Urban Expansion and River Floods Aimed at Hydrogeomorphic Risk Reduction

Integrated Approach for the Study of Urban Expansion and River Floods Aimed at Hydrogeomorphic Risk Reduction

Analysis of operator models for rainwater management in Poland – towards the integrated management model

Assessment of the Exposure of Urban Areas the Pluvial Flood Risk Using the Method of Analytic Hierarchy Process

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