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基于Mike11 HD和AD模块建立双台子河口区感潮河段水动力-水质耦合模型,利用实测资料对水动力、水质模型参数进行了率定和验证。利用所建模型,以夏灌期为例分析了在两种水文条件下橡胶坝对支流绕阳河纳潮的影响。结果表明,在两种水文情景下,建橡胶坝后纳潮量分别增加18.3%和16.9%,最大流量分别增加了32.7%和31.2%。盐度分析表明修建橡胶坝对绕阳河纳潮盐度变化影响不大,可满足苇田灌溉对盐度的要求。研究结果可为盘锦双台子河口苇田科学灌溉、促进增产提供技术支持。
Based on Mike11 HD and AD module, the hydrodynamic-water coupling model of tidal reach in Shuangtaizi Estuary was established. The parameters of hydrodynamic and water quality models were calibrated and validated by the measured data. Taking the summer irrigation period as an example, the influence of rubber dam on the tributaries around the Yanghe River was analyzed under the two hydrological conditions. The results show that in both hydrological scenarios, the post-nadir volume increases by 18.3% and 16.9% respectively, and the maximum flow increases by 32.7% and 31.2% respectively. Salinity analysis shows that the construction of rubber dam has little effect on the change of NaYao River salinity, which can meet the salinity requirements of reed irrigation. The results of this study can provide technical support for scientific irrigation and rejuvenation of reed fields in Shuangtaizi estuary of Panjin.