区域酸性沉降的数值研究 I. 模式

建立了一个三维时变的欧拉型区域酸性污染物沉降模式，模式包括源排放、平流输送、湍流扩散、干沉积、气相化学、液相化学及湿清除等六大部分。考虑到计算条件的承受能力和应用性的要求，在把握酸沉降形成的关键过程的前提下，合理地简化设计模式。相对于国内已有的工作，本模式在干沉积、气相化学、液相化学和湿清除等方面均有所改进。

Numerical Modeling of Regional Acid Deposition. Part I: Model

A 3-D time-dependent Eulerian regional acid pollutant deposition model is constructed.The model consists of six submodels, i.e. source emission, advection transport, turbulence diffusion, dry deposition, gaseous chemistry, aqueous chemistry and wet scavenging. With regard to the computing condition and the needs for application,we design the model as simply as possible by considering the key processes of the acid deposition. Compared with the study done before, the model is developed in several aspects, such as dry deposition, gaseous chemistry, aqueous chemistry and wet scavenging.