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基于2008年6月14日～6月22日期间淀山湖水域实测水文资料探讨了夏季淀山湖水域水文特征。结果表明:(1)淀山湖水域感潮特征显著,潮波主要沿黄浦江上溯经拦路港、淀浦河、石塘港、西旺港传播入湖区,该水域潮汐以M2分潮为主,为非正规半日潮类型,湖区平均涨潮历时4.0～5.3h,平均落潮历时7.0～8.4h,最大潮差基本呈以拦路港为轴心渐次递减的分布格局;(2)湖区水流极弱,垂线平均最大流速介于0.02～0.05m/s区间;(3)商榻至拦路港航道以南水域,潮流往复流特征显著,主流向基本与各入流口门和主要出流口门——拦路港构成的轴线相一致;而商榻至拦路港航道以北水域则往复流性质较弱,涨潮流向相对较为分散;(4)夏季时,风生流和相应底部补偿流是控制湖区水流垂向分布格局的首要因素之一;(5)夏季时,珠砂港、商榻、白石矶和千灯浦等4个口门为淀山湖的主要入流通道,分别占总入流量的40.7%、39.2%、18.2%和1.9%;(6)夏季时,拦路港、淀浦河、西旺港和石塘港等4个口门为淀山湖的主要出流通道,分别占总出流量的84.0%、12.0%、2.5%和1.7%;(7)夏季时,本次测验中未加考虑的部分流量较小的口门流量以及湖面接收的降雨量对于严格的湖区水量收支平衡而言仍是不可忽略的。
Based on the measured hydrological data of Dianshan Lake waters from June 14 to June 22, 2008, the hydrological characteristics of Dianshan Lake in summer were discussed. The results show that: (1) The tide characteristics of Dianshan Lake watershed are significant. The tidal waves mainly spread along the Huangpu River upstream through the blocked road port, the Dingpu River, Shitang Harbor and Xixwang Port. In the informal semi-diurnal type, the average tide in the lake lasted 4.0 ~ 5.3 h and the average ebb lasted 7.0 ~ 8.4 h. The maximum tidal range was basically decreasing gradually with the interception channel as the axis. (2) The average maximum flow rate ranged from 0.02 m / s to 0.05 m / s. (3) The commercial flow from the south to the south of the waterway of the expressway was significant, and the main flow was basically parallel with the inflow and main outflow gates And the axis of the formation is the same. However, the reciprocal flow is weak and the trend of upwelling is relatively dispersed. However, the wind flow and the corresponding bottom compensatory flow are the vertical distribution of flow in the control lake (5) In summer, the four main entrances to Dianshan Lake, including Pearl Harbor, Shangba, Baishiji and Qiandengpu, accounted for 40.7% and 39.2% respectively of the total inflow, , 18.2% and 1.9% respectively; (6) During the summer, there are 4 ports of blocked road, Dingpu River, Xixiang Port and Shitang Port Which is respectively 84.0%, 12.0%, 2.5% and 1.7% of the total outflow of Dianshan Lake. (7) In summer, some of the unidentified port traffic with small flow rate in this test and The rainfall received by the lake is still not negligible for the strict water balance in the lake.