FN Archimer Export Format
PT J
TI Observations and Predictions of Wave Runup, Extreme Water Levels, and Medium-Term Dune Erosion during Storm Conditions
BT 
AF SUANEZ, Serge
   CANCOUET, Romain
   FLOC'H, France
   BLAISE, Emmanuel
   ARDHUIN, Fabrice
   FILIPOT, Jean-Francois
   CARIOLET, Jean-Marie
   DELACOURT, Christophe
AS 1:1;2:1;3:2;4:1;5:3;6:4;7:5;8:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Inst Univ Europeen Mer, LETG Brest Geomer UMR CNRS 6554, Rue Dumont dUrville, F-29280 Plouzane, France.
   Inst Univ Europeen Mer, LDO, UMR CNRS 6558, F-29280 Plouzane, France.
   Inst Univ Europeen Mer, LPO, UMR CNRS Ifremer IRD 6523, F-29280 Plouzane, France.
   France Energies Marines, F-29200 Brest, France.
   Univ Paris Est, Lab Urba EIVP, F-75019 Paris, France.
C2 UBO, FRANCE
   UBO, FRANCE
   CNRS, FRANCE
   FRANCE ENERGIES MARINES, FRANCE
   UNIV PARIS EST, FRANCE
UM LOPS
   LGO
IF 2.744
TC 47
UR https://archimer.ifremer.fr/doc/00276/38765/37306.pdf
LA English
DT Article
DE ;macrotidal beach;runup;storm;dune;erosion;extreme water level;NAO
AB Monitoring of dune erosion and accretion on the high-energy macrotidal Vougot beach in North Brittany (France) over the past decade (2004–2014) 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 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 (R2 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. Keywords: macrotidal beach; runup; storm; dune;
PY 2015
PD SEP
SO Journal Of Marine Science And Engineering
SN 2077-1312
PU Mdpi
VL 3
IS 3
UT 000435681100010
BP 674
EP 698
DI 10.3390/jmse3030674
ID 38765
ER

EF