A local-scale approach to estuarine flood risk management

Freire, P.; Tavares, Alexandre Oliveira; Sá, Luis Fazendeiro; Oliveira, Anabela; Fortunato, A. B.; Santos, Pedro Pinto; Rilo, Ana; Gomes, João L.; Rogeiro, João; Pablo, Rui; Pinto, Pedro

doi:10.1007/s11069-016-2510-y

Cited by 26 publications

(18 citation statements)

References 48 publications

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“…Concerning triggering factors, Zêzere et al [104] verified a decrease of mean annual precipitation between the end of the 1960's and the 1980's followed by an increase until the decade following 2000. This recent decreasing trend in flood occurrences and associated impacts might also be associated with the reinforcement of flood protection measures in the upstream area of the estuary (Lezírias) and is consistent with the past knowledge of the system [30].…”

Section: Spatial and Temporal Evolution Of Past Estuarine Flood Occursupporting

confidence: 87%

“…Storm surges can also contribute to water level increase and have been estimated at 46 and 58 cm in Cascais (estuary mouth) for return periods of 5 and 100 years, respectively [3]. Recent studies in the Tagus estuary [30] estimated water level variations for the 100-year return period of 4.5 m (CD-chart datum:2.08 m below mean sea level (MSL)) in Cascais, at the mouth, to 5.1 m (CD) at its head in Vila Franca de Xira, 50 km upstream from Cascais.…”

Section: Geophysical Context Of the Tagus Estuarymentioning

confidence: 99%

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The contribution of historical information to flood risk management in the Tagus estuary

Rilo

Tavares

Freire

et al. 2017

International Journal of Disaster Risk Reduction

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Estuarine areas are often affected by flood episodes with significant infrastructural and human damages caused by the overlap of different triggering factors. Currently flood risk management practices are subject to increased scrutiny by the public and relevant stakeholders requiring rigorous justification by flood risk managers and careful validation of the technical options and human and financial resources allocated to the management practice. Therefore, flood risk diagnosis through historical sources might constitute an important and effective first approach to public policies validation. In this paper is presented an estuarine flood damage database based on historical information and discussed as to the extent these types of sources can contribute to improve estuarine flood risk management in the Tagus estuary (Portugal). The paper discusses the methodological findings and limitations and highlights the usefulness of historical information integrating the results into the International Risk Governance Council (IRGC) risk management framework.

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Section: Spatial and Temporal Evolution Of Past Estuarine Flood Occursupporting

confidence: 87%

Section: Geophysical Context Of the Tagus Estuarymentioning

confidence: 99%

The contribution of historical information to flood risk management in the Tagus estuary

Rilo

Tavares

Freire

et al. 2017

International Journal of Disaster Risk Reduction

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“…Using Hierarchical Cluster Analysis (HCA), coastal flooding studies were divided into two distinct phases based on the composition of 226 of the most frequent key words for coastal flooding research ( Fig. 6): Phase I (1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007) and Phase II (2008-2016. Among the 226 commonly used keywords, the top 50 were extracted (0.4%); they appeared 3684 times, accounting for 15.8% of the total number of keywords occurrences.…”

Section: Research Trends and Hotspotsmentioning

confidence: 99%

Bibliometric Analysis of Global Research Progress on Coastal Flooding 1995–2016

Gao

Tian

2018

Chin. Geogr. Sci.

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Global research progress on coastal flooding was studied using a bibliometric evaluation of publications listed in the Web of Science extended scientific citation index. There was substantial growth in coastal flooding research output, with increasing publications, a higher collaboration index, and more references during the 1995-2016 period. The USA has taken a dominant position in coastal flooding research, with the US Geological Survey leading the publications ranking. Research collaborations at institutional scales have become more important than those at global scales. International collaborative publications consistently drew more citations than those from a single country. Furthermore, coastal flooding research included combinations of multidisciplinary categories, including 'Geology' and 'Environmental Sciences & Ecology'. The most important coastal flooding research sites were wetlands and estuaries. While numerical modeling and 3S (Remote sensing, RS; Geography information systems, GIS; Global positioning systems, GPS) technology were the most commonly used methods for studying coastal flooding, Lidar gained in popularity. The vulnerability and adaptation of coastal environments, their resilience after flooding, and ecosystem services function showed increases in interest.

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“…The model was run for the period of the Xynthia storm, between 18 February and 4 March 2010. The extent of the flooding that occurred during those days in the Seixal old city centre (Figure 6(a)) was determined through a post-event field survey, by interviewing the local authorities and analysing photographs taken during the event (Freire et al 2016). The extent of the flooding predicted by the model fully agrees with the field survey data to within grid resolution accuracy: all the surveyed points are located within the layer of partially wet elements (Figure 7).…”

Section: Local Modelling: the Tagus Estuarymentioning

confidence: 83%

“…The WIFF deployment for the Tagus estuary is organised along four main components: early warning, flood forecast, forcings and risk analysis (Figure 9(a)). The first component provides information on the vulnerable areas that may be flooded in the next 48 h. The Seixal Municipality waterfront, which is flooded on a yearly basis, was chosen as a local-scale case for the warning component implementation (Freire et al 2016). At selected critical points along the margins, the total water depth is evaluated every 15 min.…”

Section: Wiff Deployment For the Tagus Estuarymentioning

confidence: 99%

Operational forecast framework applied to extreme sea levels at regional and local scales

Fortunato

Oliveira

Rogeiro

et al. 2016

Journal of Operational Oceanography

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The design, implementation and demonstration of a novel and generic computational forecast framework for multi-scale prediction of extreme sea levels and associated flooding is presented. Denoted Water Information Forecast Framework (WIFF), it integrates process-based models for waves, tides and surges from regional to local scales, predicting the flooding of coastal areas, and supporting the routine and emergency management of coastal resources. WIFF manages the simulations and the real-time monitoring data, archives the data and makes the information available through a WebGIS that targets users with distinct access privileges. Additionally, the web component of WIFF adapts automatically and transparently to any device. WIFF also provides ways to assess the model accuracy and generates tailored products based on model results and observations. WIFF is demonstrated in the prediction of extreme water levels in the Portuguese coast, simulating processes at different scales: at basin scales, waves are simulated in the North Atlantic and in the Portuguese shelf, and sea levels due to tides and atmospheric forcings are simulated in the Northeast Atlantic; at estuarine scales, high-resolution, fully coupled wave/circulation predictions are performed in the Tagus estuary to account for wave-current interactions. User-oriented georeferenced products are generated, including automatic model/ data comparisons, targeting the needs of civil protection agents and combining for the first time an agile, service-oriented platform with high-resolution, process-rich predictions of the Tagus dynamics.

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A local-scale approach to estuarine flood risk management

Cited by 26 publications

References 48 publications

The contribution of historical information to flood risk management in the Tagus estuary

The contribution of historical information to flood risk management in the Tagus estuary

Bibliometric Analysis of Global Research Progress on Coastal Flooding 1995–2016

Operational forecast framework applied to extreme sea levels at regional and local scales

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