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钦州湾内水动力因素主要是径流、潮流、余流和风浪。内湾以径流、潮流影响为主;外湾以潮流、风浪影响为主。而且随季节有很大的变化,一般来说夏季大于冬季。悬沙具有明显的季节变化,冬季悬沙浓度仅是夏季的十分之一;夏.冬季节悬沙平面分布形势相反,夏季以湾口、湾顶悬沙浓度较高,在0.05公斤/米~3以上。钦州湾悬沙输送方向与余流方向一致,终年向外输沙,夏季大于冬季。
Qinzhou Bay hydrodynamic factors are mainly runoff, tide, residual flow and storms. The inner bay is dominated by runoff and tide; the outer bay is dominated by tide and storm. And with the seasons have a lot of changes, in general, summer is greater than winter. Suspended sediment has obvious seasonal changes. The concentration of suspended sediment in winter is only one tenth of that in summer. The distribution of suspended sediment in summer and winter is opposite. In summer, the concentration of suspended sediment in the bayou and bay top is higher at 0.05 kg / 3 or more. Qinzhou Bay suspended sediment transport direction consistent with the residual flow year-round out of sand, the summer is greater than in winter.