Urban floods: a case study in the Savigliano area (North-Western Italy)

Audisio, Chiara; Turconi, Laura

doi:10.5194/nhess-11-2951-2011

Cited by 27 publications

(18 citation statements)

References 33 publications

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“…This analysis highlights the direct impact of land use changes on watershed hydrologic response and is crucial step in planning, management, mitigation of flood hazards and sustainable development as has been discuss in several other studies (e.g. Neuvel and van den Brink 2009;Audisio and Turconi 2011;Spitalar et al 2014;Ran and Nedovic-Budic 2016).…”

Section: Impact Of Urbanization On Flood Potentialmentioning

confidence: 80%

Land use/land cover change along the Eastern Coast of the UAE and its impact on flooding risk

Hussein

Alkaabi

Ghebreyesus

et al. 2020

Geomatics, Natural Hazards and Risk

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This study was conducted to investigate the spatiotemporal changes of land use/land cover (LULC) along the eastern coast of the United Arab Emirates (UAE) over a 20-year period using an integration of remote sensing and Geographic Information Systems techniques. The impact of land use change on flooding potential was also investigated through hydrologic model simulations. Landsat images of the years 1996, 2006 and 2016 were processed and analyzed. Change detection was carried out to assess changes in the built-up areas. Furthermore, the impact of urbanization on flooding was assessed using a hydrologic model in two major watersheds of Fujairah Emirate. It was observed that for the period 1996-2006 the vegetation and the built-up areas had increased at a rate of 11.23% and 24.56%, respectively. For the period 2006-2016, this expansion more than doubled in terms of the vegetation class (27.51%) and slightly increased for the built-up class (28.98%). The change detection analysis revealed that urbanization has mostly occurred along the coastal boundary. Hydrologic model simulations quantified the role of urbanization in increasing the flooding potential. The increase depends on watershed characteristics and the rate of change in urbanization and the magnitude of the rainfall event. ARTICLE HISTORY

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Section: Impact Of Urbanization On Flood Potentialmentioning

confidence: 80%

Land use/land cover change along the Eastern Coast of the UAE and its impact on flooding risk

Hussein

Alkaabi

Ghebreyesus

et al. 2020

Geomatics, Natural Hazards and Risk

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“…The predictability is low and the uncertainty is high for natural disaster damage to urban areas because they occur due to not only the impacts of rainfall, sewer pipes, and land uses, but also complex effects between these factors [45,46,48]. Therefore, a minimal standard should be established to resolve such uncertainties [51][52][53][54][55][56][57][58]. The existing studies' results proposed improvement of sewer pipes, installation of mitigation facilities, policy improvement methods, etc.…”

Section: Discussionmentioning

confidence: 99%

A Study on Setting Disaster-Prevention Rainfall by Rainfall Duration in Urban Areas Considering Natural Disaster Damage: Focusing on South Korea

Song

Park

2020

Water

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Inundation damage occurs in urban regions due to short flood reach time and increased surface runoff caused by urbanized impervious areas. Furthermore, heavy rainfall frequency has increased because of climate change, thus exceeding the design frequency and resulting in sewer pipes’ lack of flood control capacity, with damage expanding from low-lying areas. Despite many urban disaster-mitigation policies, complex causes and uncertainties make reducing urban inundation damage difficult. This study established a rainfall-related disaster-prevention standard by time duration considering rainfall characteristics targeting urban disaster-induced inundation damage. Based on the South Korean urbanization rate and population, seven target regions were selected. Rainfall by time duration was analyzed with respect to disaster length (number of days) from 2010–2017. The average rainfall for durations from 1–24 h were analyzed according to disaster length (1–13 days). Using the results, an equation was proposed for rainfall estimation by length of disaster resulting in urban inundation damage, through multiple regression analysis. An equation was developed for rainfall-related disaster-prevention in urban areas considering the length of disaster and rainfall duration. This was accomplished by selecting a duration whereby the average rainfall of duration corresponded to 50% of total rainfall during the disaster period.

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“…Many authors have acknowledged the fact that increased urban activities in the flood areas will increase the apex drainage, reduce time to the apex, and increase the runoff [43][44][45][46][47]. A better understanding and assessment of land-use changes that have a direct impact on the processes of hydrological water catchments is crucial for the planning and sustainable development of water catchments [48][49][50][51]. The geomatics of remote sensing (RS) and geographic information systems (GIS) have recently been employed as powerful and effective tools in identifying changes in the land use [52,53].…”

Section: Monitoring the Changes In The Land Use Of The Wadi Nu'man Bamentioning

confidence: 99%

Flood Risk Assessment of the Wadi Nu’man Basin, Mecca, Saudi Arabia (During the Period, 1988–2019) Based on the Integration of Geomatics and Hydraulic Modeling: A Case Study

Abdelkarim¹,

Gaber

2019

Water

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This study aims to assess the impact of flash floods in the Wadi Nu’man basin on urban areas, east of Mecca, which are subjected to frequent floods, during the period from 1988–2019. By producing and analyzing the maps of the regions, an integrated approach to geomatics and hydraulic modelling is employed. The following maps are used: Flood-prone urbanity from 1988–2019, a flood risk map of Wadi Nu’man based on a risk matrix map, and a map of the proposed protection measures and alternatives in the study area. In order to achieve these goals, changes in the land use in the Wadi Nu’man basin were monitored by analyzing successive satellite images, taken by the US satellite, Landsat, in 1988, 1998, 2013, and 2019. Using a supervised classification, with the maximum likelihood method of ERDAS IMAGINE 2016, GIS was used in the production and analysis of soil maps, and geological and hydrological groups of drainage basins, as well as the hydrological model (HEC-HMS), were applied in calculating the hydrograph curve of the Wadi Nu’man basin. The flood water volumes and flow rates were estimated based on the SCS unit hydrograph, and the rain depth was analyzed and estimated for different periods. The hydraulic modeling program (HEC-RAS) was employed, when developing a two-dimensional model to calculate the speed, depth, and spread of the flood, in order to apply the risk matrix method. The recommendations based on this study give priority to the implementation of a flood prevention plan and the protection of infrastructure by maintaining the existing flood drainage facilities and establishing new drainage facilities to protect lives, property, and infrastructure.

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Urban floods: a case study in the Savigliano area (North-Western Italy)

Cited by 27 publications

References 33 publications

Land use/land cover change along the Eastern Coast of the UAE and its impact on flooding risk

Land use/land cover change along the Eastern Coast of the UAE and its impact on flooding risk

A Study on Setting Disaster-Prevention Rainfall by Rainfall Duration in Urban Areas Considering Natural Disaster Damage: Focusing on South Korea

Flood Risk Assessment of the Wadi Nu’man Basin, Mecca, Saudi Arabia (During the Period, 1988–2019) Based on the Integration of Geomatics and Hydraulic Modeling: A Case Study

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