Runup estimations on a macrotidal sandy beach

Cariolet, Jean-Marie; Suanez, Serge

doi:10.1016/j.coastaleng.2012.11.008

Cited by 19 publications

(42 citation statements)

References 33 publications

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“…Between July 2012 and June 2013, 59 measurements of beach profile and maximum swash elevation were carried out using the same method as the one followed in the previous study by Cariolet and Suanez [33]. Maximum swash elevation was determined by the wrack deposit and/or the limit of the water mark identified by a tonal change from dark wet foreshore sand to light dry sand on the upper beach ( Figure 4a).…”

Section: Survey Of Beach Profile and Maximum Swash Elevation (Runup) mentioning

confidence: 99%

“…Finally, during the winter of 2013-2014, a cluster of about 12 storm events hit the coast of Brittany with an exceptional frequency [38]. [33] to calculate beach slope for the runup calculation. The lower bound corresponds to the limit of the profile section where changes of elevation are the most significant.…”

Section: Geomorphological and Hydrodynamic Settingmentioning

confidence: 99%

“…In a recent study, a methodological approach for calculating runup from the analysis of morphodynamic conditions on macrotidal sandy beach in Vougot (Brittany, France) was published [33]. The goal of this work was to improve simple parameterization for a maximum runup elevation based on the earlier empirical formula produced by Battjes [1].…”

Section: Introductionmentioning

confidence: 99%

“…Based on the Sallenger [18] and/or Ruggiero [19] models, the aim is to evaluate the frequency with which these extreme water levels have reached the toe of the dunes, providing an evaluation of the susceptibility to potential erosion. First, a new parametrization of the runup equation was accomplished following the same methodological approach as Cariolet and Suanez [33]. This analysis was based on a new data set obtained between June 2012 and June 2013 and includes the one used in the previous study [33].…”

Section: Introductionmentioning

confidence: 99%

“…First, a new parametrization of the runup equation was accomplished following the same methodological approach as Cariolet and Suanez [33]. This analysis was based on a new data set obtained between June 2012 and June 2013 and includes the one used in the previous study [33]. Secondly, calibration of a general empirical formula based on tide and offshore wave measurements was achieved in order to predict extreme water levels over the last decade (2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014).…”

Section: Introductionmentioning

confidence: 99%

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Observations and Predictions of Wave Runup, Extreme Water Levels, and Medium-Term Dune Erosion during Storm Conditions

Suanez¹,

Cancouët²,

Blaise³

et al. 2015

JMSE

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Monitoring of dune erosion and accretion on the high-energy macrotidal Vougot beach in North Brittany (France) over the past decade (2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014) has revealed significant morphological changes. Dune toe erosion/accretion records have been compared with extreme water level measurements, defined as the sum of (i) astronomic tide; (ii) storm surge; and (iii) vertical wave runup. Runup parameterization was conducted using swash limits, beach profiles, and hydrodynamic (Hm0, Tm0,-1, and high tide water level-HTWL) data sets OPEN ACCESS J. Mar. Sci. Eng. 2015, 3 675 obtained from high frequency field surveys. The aim was to quantify in-situ environmental conditions and dimensional swash parameters for the best calibration of Battjes [1] runup formula. In addition, an empirical equation based on observed tidal water level and offshore wave height was produced to estimate extreme water levels over the whole period of dune morphological change monitoring. A good correlation between this empirical equation (1.01Hmoξo) and field runup measurements (Rmax) was obtained (R 2 85%). The goodness of fit given by the RMSE was about 0.29 m. A good relationship was noticed between dune erosion and high water levels when the water levels exceeded the dune foot elevation. In contrast, when extreme water levels were below the height of the toe of the dune sediment budget increased, inducing foredune recovery. These erosion and accretion phases may be related to the North Atlantic Oscillation Index.

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Section: Survey Of Beach Profile and Maximum Swash Elevation (Runup) mentioning

confidence: 99%

Section: Geomorphological and Hydrodynamic Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Observations and Predictions of Wave Runup, Extreme Water Levels, and Medium-Term Dune Erosion during Storm Conditions

Suanez¹,

Cancouët²,

Blaise³

et al. 2015

JMSE

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Catastrophic overwash and rapid retreat of a gravel barrier spit during storm events (Sillon de Talbert, North Brittany, France)

Suanez

Stéphan

Autret

et al. 2022

Earth Surf Processes Landf

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The morphodynamic functioning of the Sillon de Talbert gravel barrier spit is analysed using a high-frequency survey carried out between September 2012 and December 2019. It is based on beach profile measurements along two transects, modelling offshore wave data (WW3), tide gauge records, and shallow waves and water levels recorded in the intertidal zone. A barrier retreat of À23 to À30 m over the 7-year survey (i.e. À3.3 to À4.3 m yr À1 ) is measured. This retreat is not related to long-term sea level rise (macroscale of 10 2 -10 3 yr), but to mesoscale (10 0 -10 2 yr) morphogenic events combining storm wave and high spring tide. Over 87-90% of the barrier retreat is due to three significant events (1-2 February 2014, 9 February 2016, and 3 January 2018). The storm impact scale model of Orford and Carter is tested. The estimation of the wave runup for the calculation of extreme water levels [i.e. peak overflow elevation (O e ) component] is based on the calibration of an equation performed from in-situ measurements of the swash elevation. The flow depth (O d,q ) overtopping the crest of the barrier (B h ) is thresholded by taking into account the morphological response of the barrier in order to define regimes corresponding to overtopping, discrete overwash, and sluicing overwash. While the Orford and Carter model is generally successful in reproducing the morphodynamic evolution of Sillon de Talbert, the wave energy flux (F) must be considered as an additional parameter in order to improve the fit of the model, so far as it contributes in some cases to change the morphodynamic regime. Thus, the wave energy flux constitutes a key component in the quantification of the water flow across the barrier (O d,q ) corresponding to the hydrodynamic forcing of the model, which becomes (O d,F ).

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Coastal Sea Level and Related Fields from Existing Observing Systems

et al. 2019

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We review the status of current sea-level observing systems with a focus on the coastal zone. Tide gauges are the major source of coastal sea-level observations monitoring most of the world coastlines, although with limited extent in Africa and part of South America. The longest tide gauge records, however, are unevenly distributed and mostly concentrated along the European and North American coasts. Tide gauges measure relative sea level but the monitoring of vertical land motion through highprecision GNSS, despite being essential to disentangle land and ocean contributions in tide gauge records, is only available in a limited number of stations (25% of tide gauges have a GNSS station at less than 10 km). Other data sources are new in-situ observing systems fostered by recent progress in GNSS data processing (e.g. GPS reflectometry, GNSS-towed platforms) and coastal altimetry currently measuring sea level as close as 5 km from the coastline. Understanding observed coastal sea level also requires information on various contributing processes, and we provide an overview of some other relevant observing systems, including those on (offshore and coastal) wind-waves and water density and mass changes.

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Runup estimations on a macrotidal sandy beach

Cited by 19 publications

References 33 publications

Observations and Predictions of Wave Runup, Extreme Water Levels, and Medium-Term Dune Erosion during Storm Conditions

Observations and Predictions of Wave Runup, Extreme Water Levels, and Medium-Term Dune Erosion during Storm Conditions

Catastrophic overwash and rapid retreat of a gravel barrier spit during storm events (Sillon de Talbert, North Brittany, France)

Coastal Sea Level and Related Fields from Existing Observing Systems

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