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使用风浪谱的零阶矩（Ｍ０ｗ）和混合浪谱的零阶矩（Ｍ０）定义的混合浪能量成份因子，作为划分风浪与涌浪的一个新判据，给出了混合浪能量成份因子和混合浪波高成份因子的计算公式。根据混合浪波高成份因子的计算公式，使用ＧＥＯＳＡＴ卫星高度计５０个重复周期的资料，计算了南海海域波高成份因子及其月变化规律，资料的样本长度是１个月。计算结果表明：该海域的混合浪波高成份因子具有明显的时间变化规律。海浪在１１、１２、１、２月份和５、６、７、８月份，混合浪波高成份因子的概率密度分布形状高而窄，而在３、４月份和９、１０月份，混合浪波高成份因子的概率密度分布形状低而宽。在１１、１２、１和２月份，最可能出现的混合浪波高成份因子等于１．２，有７０％的波浪含有涌浪成份，在整个海域涌浪占主导地位。在５、６、７月份，最可能出现的混合浪波高成份因子位于０．３～０．４之间，有６０％的波浪只含有风浪成份，在整个海域风浪占主导地位。其它月份，最可能出现的混合浪波高成份因子介于冬夏两季之间，亦即风浪和涌浪出现的概率几乎是相同的
Using the components of the mixed wave energy components defined by the zero moment (M0w) of the wind wave spectrum and the zero moment (M0) of the mixed wave spectrum, a new criterion for dividing storm waves and surge is given, Mixed wave high component factor of the formula. According to the calculation formula of high component factor of mixed wave, using the data of 50 repetitions of GEOSAT satellite altimetry, the component factors and monthly variation of wave height in the South China Sea are calculated. The sample length of data is 1 month. The calculation results show that the component factors of mixed wave in this area have obvious time variation. Waves in 11th, 12th, 12th, 12th, 12th, 12th, 12th, 12th, 12th, 12th, 12th, 12th, 12th, 12th, 14th, The probability distribution of the factors is low and wide. In November, December, January and February, the highest possible mixed wave component factor is equal to 1.2, with 70% of the waves containing the surge component and the surge prevailing throughout the sea. In May, June and July, the highest possible mixed wave component factor lies between 0.3 and 0.4. About 60% of the waves contain only wind and wave components, and the storm surge prevails throughout the sea. In other months, the highest possible mixed wave component factor is between winter and summer, ie the probability of occurrence of storms and surges is almost the same