二维的大气CO2——大西洋碳循环模式

本文描述了一个二维（纬度×深度）的大西洋碳循环模式，模拟了大气和海洋间CO2的交换以及碳在海洋中的输送过程。模式在运行时使用了一个12层的三维动力学模拟的海洋环流的结果。大西洋被划分成397个网格箱，每个箱子中各种形式的碳的含量、总碱度、溶解的无机营养物和溶解氧的浓度以及几种14C(碳14)同位素的值分别得到求解。模式稳定状态的计算采用解大型稀疏线性方程组的直接解法。计算结果与“地球化学的海洋研究（GEOSECS）”的实际观测数据对比，表明模式较好地再现了实际大西洋中几种化学量的分布。

Two-Dimensional Atmospheric CO_2 - Atlantic Carbon Cycle Model

A two-dimensional Atlantic carbon cycle model including the marine biological and chemical processes is described, which simulates the exchange of CO2 between the atmosphere and ocean as well as the carbon transportation in the ocean. The model is constructed on the basis of a two-dimensional advective cuirent field which is produced fi-om a 12bayer general dynamic circulation model of world ocean. Tile Atlantic is divided into 397 boxes, in which the quantities of several kinds of carbon, total alkalinity, dissolved inorganic nutrient, dissolved oxygen are calculated, respectively. The calculation in a steady state is carried out by solving a set of sparse simultaneous linear equations. Compared with the Geochendcal Ocean Section Study (GEOSECS) data, the modelled results indicate that the model satisfactorily reproduces the distribution of several chemical quantities in the real Atlantic.