完整物理过程下南黄海浮游生态动力学数值研究 Ⅰ.模型建立

Numerical study on plankton ecology dynamics in South Yellow Sea under complete physical process——Ⅰ.Model development

为了对南黄海进行生态动力学模型研究,不但需要选取合理的生态变量和生化过程及过程参数,而且还需要模型能够客观地再现该海域关键的物理过程。在建立波浪-环流-潮流共同作用的中国近海水动力模型的基础上,建立完整物理过程下的南黄海三维浮游生态动力学模型,旨在通过数值模拟认识南黄海的生态动力特征,并探讨关键的物理过程对生态的影响,特别是潮流和波浪混合对浮游植物时空分布的作用机制。本文先给出理论模型及模型配置。

The ecosystem in South Yellow Sea（SYS） is obviously influenced by the physical processes in the sea and adjacent seas,which include the tidal currents,wind force,wind induced circulation,wind-wave mixing,the runoff of Yangtze River and so on.In order to reasonably develop an ecology dynamics model for SYS,it is the key to reproduce the realistic ocean conditions and circulation patterns,and to select reasonable ecological variables,biochemistry process and parameters.Based on the establishment of wave-circulation-tidal current combined model for the Bohai Sea,Yellow Sea,and East China Sea,a 3-D ecosystem dynamics model of SYS under complete physical process was devoted,for the purpose of understanding SYS ecological characteristics through numerical simulation,and interpreting the influence of main physical process to ecosystem,and especially probing into the mechanisms of effects of tidal current and wave mixing to the distribution of phytoplankton in space-time.