Storm Early Warning System as a Last Plug-in of a Regional Operational Oceanography System: The Case of the Gulf of Cadiz

Plomaritis, Theocharis A.; Benavente, Javier; Río, Laura Del; Reyes, Emma; Dastis, C.; Gómez, Marta I.; Bruno, Miguel

doi:10.9753/icce.v33.management.54

Cited by 6 publications

(4 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This study provides guidance for the rapidly growing establishment of operational coastal erosion early warning systems worldwide, where XBeach in the standard 1DH and surfbeat configuration is often proposed in the numerical modelling forecast chain (e.g., [3,4]). As a practical step in implementing such systems, the results suggest that there is little advantage in terms of improved forecast accuracy (not considering future XBeach model developments) in regularly surveying and updating the pre-storm bathymetry, or in installing specialist remote-sensing infrastructure capable of estimating surf zone and nearshore bathymetry in near real time (e.g., [11]).…”

Section: Discussionmentioning

confidence: 99%

“…Coastal hazard early warning systems (EWS) are an evolving disaster risk reduction tool that can provide information several days in advance of an impending storm, potentially providing a "window of opportunity" to implement a range of emergency responses. These systems typically incorporate coastal numerical models within their workflow to simulate nearshore hydrodynamic and morphodynamic processes, with the goal of predicting the location and magnitude of coastal flooding and erosion along coastlines [1][2][3][4][5]. The resulting coastal hazard predictions are subsequently applied in a decision support module, triggering emergency managers to undertake an escalating series of actions depending on the level of coastal risk that is forecasted [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bathymetric Data Requirements for Operational Coastal Erosion Forecasting Using XBeach

Matheen

Harley

Turner

et al. 2021

JMSE

View full text Add to dashboard Cite

There is an increasing interest in the broad-scale implementation of coastal erosion early warning systems (EWS) with the goal of enhancing community preparedness to extreme coastal storm wave events. These emerging systems typically rely on process-based models to predict the storm-induced morphological change. A key challenge with incorporating these models in EWSs is the need for up-to-date nearshore and surf zone bathymetry data, which is difficult to measure routinely, but potentially important for accurate erosion forecasting. This study evaluates the degree to which up-to-date bathymetry is required for accurate coastal erosion predictions using the morphodynamic model XBeach and, subsequently, whether a range of “representative” and/or “synthetic” bathymetries can be used for the bottom boundary, when a survey of the immediate pre-storm bathymetry is not available. Twelve storm events at two contrasting sites were modelled using six different bathymetry scenarios, including the expected “best case” bathymetry surveyed immediately pre-storm. These results indicate that alternative bathymetries can be used to obtain sub-aerial erosion predictions that are similar (and in some cases better) than those resulting from the use of an immediately pre-storm surveyed bathymetry, provided that rigorous model calibration is undertaken prior. This generalized finding is attributed to specific parametrizations in the XBeach model structure that are optimized during the calibration process to match the particular bottom boundary condition used. This study provides practical guidance for the selection of suitable nearshore bathymetry for use in operational coastal erosion EWSs.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bathymetric Data Requirements for Operational Coastal Erosion Forecasting Using XBeach

Matheen

Harley

Turner

et al. 2021

JMSE

View full text Add to dashboard Cite

show abstract

“…Regarding the hydrodynamic conditions, storms affecting La Victoria Beach occur mainly between November and March, associated with westerly winds. Easterly winds, although more frequent and more intense, have little impact on wave generation in this area because of their limited fetch [43]. The mean wave height is less than 1 m with associated periods of 5-6 s, although wave height during storms can exceed 4 m [44] with associated periods longer than 8 s. The dominant longshore drift is directed towards the southeast.…”

Section: Study Zonementioning

confidence: 98%

Video-Monitoring Tools for Assessing Beach Morphodynamics in Tidal Beaches

et al. 2023

Self Cite

View full text Add to dashboard Cite

Beach behaviour and evolution are controlled by a large number of factors, being susceptible to human-derived pressures and the impacts of climate change. In order to understand beach behaviour at different scales, systematic monitoring programs that assess shoreline and volumetric changes are required. Video-monitoring systems are widely used in this regard, as they are cost-effective and acquire data automatically and continuously, even in bad weather conditions. This work presents a methodology to use the basic products of low-cost IP video cameras to identify both the cross-shore and long-shore variability of tidal beaches. Shorelines were automatically obtained, digital elevation models (DEMs) were generated and validated with real data, and the outputs were combined to analyse beach behaviour from a morphodynamic perspective. The proposed methodology was applied to La Victoria Beach (SW Spain) for the analysis of beach variations over a 5-year period. The combination of shoreline position analysis and data from DEMs facilitates understanding and provides a complete overview of beach behaviour, revealing alongshore differences in an apparently homogeneous beach. Furthermore, the methods used allowed us to inter-relate the different processes occurring on the beach, which is difficult to achieve with other types of techniques.

show abstract

“…At present, prediction and management of the arrival of storms and their expected energy is assessed through the development of storm early warning systems, an operational oceanography system developed at several coastal sites in Europe (Plomaritis et al, 2012). Apart from hydrodynamic considerations, it is important to evaluate damage and understand the processes responsible for the coastal effects of storms.…”

Section: Storm Surgesmentioning

confidence: 99%

The complexity of studying coasts: From forms and processes to management

Prieto

2022

CIG

View full text Add to dashboard Cite

Coastal environments are characterized by their high dynamism, related to the interaction between marine agents (winds, waves, currents, sea level changes) and continental forms and processes. The present article summarizes the main morphodynamic characteristics of coasts and the resulting environments. Different oscillations of the sea level are considered, depending on their amplitude and frequency: rapid eustatic fluctuations, energetic tsunamis, storm waves and surges, tides and good weather wind waves. Coastal environments are classified in low, sedimentary coasts, including beaches, dunes, barrier islands, lagoons, salt marshes and river mouths, and high, rocky coasts. Management of coastal zones needs a deep knowledge of all the processes involved at the littoral, especially at the local scale, since coastal processes vary rapidly alongshore. At present the integrated coastal management intends to involve different socioeconomic sectors interested in the occupation and use of coasts. Coastal management must include the adaptation of human activities to the natural processes and associated coastal hazards and the protection of coastal values, both of natural and historical-cultural character. Public administrations at different levels should consider the knowledge of the coastal processes at different scales and their potential interaction with human activities in order to design laws and regulations accordingly.

show abstract

Storm Early Warning System as a Last Plug-in of a Regional Operational Oceanography System: The Case of the Gulf of Cadiz

Cited by 6 publications

References 19 publications

Bathymetric Data Requirements for Operational Coastal Erosion Forecasting Using XBeach

Bathymetric Data Requirements for Operational Coastal Erosion Forecasting Using XBeach

Video-Monitoring Tools for Assessing Beach Morphodynamics in Tidal Beaches

The complexity of studying coasts: From forms and processes to management

Contact Info

Product

Resources

About