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收集了近年来鳌江口附近海域多个工程不同阶段5个潮位站的3~5年潮位实测数据和部分海流实测资料,通过对鳌江口附近海域的不同年份的水位资料进行潮汐调和常数分析,鳌江近海海域主要为半日潮区,其中M2分潮的振幅在170 cm~193 cm;迟角在260°~280°之间,这些站的2007年、2010年、2011年调和常数分析结果相比,主要的半日分潮M2、S2、N2,全日分潮K1、O1及浅水分潮M4、MS4、及M6等分潮振幅、迟角的最大变化分别在1.8 cm~4.4 cm和3°~7°之间。在初步掌握了鳌江口潮汐潮流特征的基础上,采用无结构的三角形网格和有限体积法的FVCOM海洋数值模型,进行模拟结果验证,计算结果与实测数据符合良好。构建重点年份建设工程合拢产生新的岸线水深的潮汐潮流场,刻画鳌江口建设工程的叠加影响。
The collected data of tide levels from 3 to 5 years at five tide stations at different stages of several projects in the waters around Ao Estuary and some measured data of current ocean currents were collected. Based on the tide harmonic constants analysis of water level data in different years around Ao Estuary, The sea near the Yangtze River is dominated by the semi-diurnal tidal zone, of which the amplitude of M2 tide is between 170 cm and 193 cm and the late angle is between 260 ° and 280 °. Compared with the results of the harmonic constant analysis of these stations in 2007, 2010 and 2011 , The maximum half-tidal tide M2, S2, N2, total tidal tide K1, O1 and shallow tidal moisture M4, MS4, and M6 were 1.8 cm-4.4 cm and 3 ° -7 between. Based on the initial tidal current characteristics of the Aojiang estuary, the FVCOM ocean numerical model with the unstructured triangular grid and the finite volume method was used to verify the simulation results. The calculated results are in good agreement with the measured data. Build a tide tidal current field of new shoreline water depth brought together by construction projects in key years and characterize the superimposed impact of the construction of the Aojiang River estuary.