Abstract
Wind wave spectrum in high frequency is very important because of its influence on air-sea
interaction,and the reflectance properties of sea surface. An effort to estimate the exponent of the
equilibrium range in wind wave high frequencyand some other statistical properties, such as the
distribution of the significant wave height, the relation between the peak frequency and wind
energy and etc., are proceeded by using wave data recorded by a waverider deployed in Suruga
Bay from Oct. 22, 1993 to March 18, 1994. The exponent of the equilibrium range is estimated
by the least square fit method and is computed in four different frequency ranges. All the expo
nents in four different frequency ranges lie in the range from -3.5 and -5.0 and the mean of the
exponent in equilibrium range is -4.08, which is consistent with Liu's (1989) results in Great
Lake data and the theoretical result of Shen et al. (1993). However,the slope exponent exhibits
no variations as wind wave energy increases, which is different with the result of Liu (1989).
