【摘要】 根据2006—2007年期间在珠江口八大口门进行的丰水期大、中、小潮3个航次、平水期和枯水期各1个航次的全潮同步水文观测资料,分析了八大口门的潮流特性、涨落潮通量等特征,并建立了逐时潮差与流量的相关关系。在丰水期小潮期间,八大口门受强热带风暴"碧利斯"带来的强降雨的影响,潮流特性、断面流量等水文特征出现较大的变化,逐时潮差与流量的相关关系与其他航次相比表现出不同的规律。在无强径流影响下,逐时潮差与流量的相关关系用线性方程拟合,相关性较好;但在强径流影响下,则采用二次多项式拟合较为合适,且拟合曲线的左右侧表现出涨、落潮过程的区别。更多还原

【Abstract】 Hydrographic measurements of the full tidal hours were synchronized at the 8 main entrances to the Pearl River Estuary,including the measurements respectively in the spring tide,the normal tide,and the neap tide of the 2006 wet season,those of the 2006 normal season,and those of the 2007 dry season.The measurement data are used to analyze the tidal current features,the flooding flow capacities,the ebbing flow capacities,and the others at the 8 entrances,and to correlate the hourly tidal range with the flow capacity.Right in the neap tide of the wet season when the strong tropical storm,"Billis",brings heavy rainfall to the area,the tidal features,the flow capacity,and the other hydrographic characteristics become abnormal,and the correlation between the hourly tidal range and the flow capacity are different from the other times.The correlation can be better fitted by a linear equation if the runoff is not strong.It is better to use a quadratic multinomial for the fitting if the runoff is strong,and the flooding cases and the ebbing cases can be seperated with each other by the multinomial fitting curve.更多还原