《Table 2Best-fitted equilibrium parameters and statistical errors of EBP functions for beaches along

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《法国日安东连岛沙洲沿岸海滩剖面经验平衡（英文）》

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Parameter units:B（m）；k（m-1）；So（%）；A（m1/3）；m（–）；ρ（–）；xs（m）；Hos（m）；w（cm/s）；C（m）；D（m-1）；F（m-1）；G（m）；xo （m）

In Zone 1，two typically investigated cross sections are those of Gapeau and Ayguade.At Gapeau beach，nine beach profiles measured from 2001 to 2010 by E.O.L.were supplied for this work.The average slope of Gapeau beach is about 1.6%from the shoreline to 450 m offshore（Table 1）.Seven EBP models were fitted to the measured data of the nine beach profiles by using the nonlinear least-squares methods.Results reveal that the Dean（1977）and Romańczyk et al.（2005）EBP curves have identical R2of 0.8514 and RMSE of 0.7707，but the EBP function of Komar and Mc Dougal（1994）provides the best fit to the measured data with an R2of 0.9992 and RMSE of 0.0551（Table 2）.The average measured profile was also compared with seven EBP models（Fig.2），and the best consistency found is with Komar and Mc Dougal’s（1994）equation.The surface error between the EBP function of Komar and Mc Dougal（1994）and the average beach profile is only about+3.1 m2per profile unit，whichmeans the beach profile somewhat expresses the equilibrium profile condition.However，the beach face from the foreshore to the shoreface tends to flatten to achieve the equilibrium shape without bars as these EBPs do not take into account unidirectional currents or the migration of sand bars during storm events and the flood season（Kaiser and Frihy 2009）.The EBP expression of Komar and Mc Dougal（1994）can fairly represent the evolution of the Gapeau beach profile if the average predicted Sois kept at around 1.56%（Table 2）.