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应用AR谱和多维最大熵谱方法分析了杭州湾北岸张家厍潮滩的波浪、潮流及潮滩滩面高程数据。结果表明，潮滩的变动和潮流、波浪变化的关系十分密切，潮滩滩面高程具有30，15，2—5d的周期变化；冬春季节潮滩变化以潮流作用造成的低频变化为主，夏秋季节则由低频向高频转移，波浪引起的潮滩高频变化也很显著；低潮滩到中潮滩下部的冲淤变化与潮流作用关系密切，中翻滩上部、高潮滩的冲淤变化对常浪性质的波浪作用具有明显的响应。
Using AR spectrum and multi-dimensional maximum entropy spectrum method, the wave, tidal current and tideland beach surface elevation data of Zhangjiadan tidal flat on the north bank of Hangzhou Bay were analyzed. The results show that the variation of tidal flats is closely related to tidal current and wave changes. The tidal flat of the tidal flats has a cyclic variation of 30, 15, 2 to 5 days. The change of tidal flats in winter and spring is dominated by the low frequency changes caused by tidal current, In summer and autumn, the frequency of high-frequency transition from low frequency to high frequency is also very significant. The erosion and deposition of lower tide beach to middle tidal flat are closely related to tidal current, The wave effect of regular waves has a clear response.