谈地下水模型

Elementary discussion on groundwater model

我们建立的地下水模型是用与其对应的数学表达式来代表实际的地下水系统。在地下水模拟中地下水的补给、径流、排泄的概化至关重要,因为许多水文地质边界条件能用多种数学方法进行表达,每一种方法都有其自身的优势及限制条件,所以在选择哪种数学表达式来表示这些边界条件需要考虑多方面的因素。完整且准确的建立地下水模型是一个复杂的过程,在建模过程中必须做到每一步都有据可依。

Groundwater models attempt to represent an actual groundwater system with a mathematical counterpart. The conceptualization of recharge、runoff、discharge in groundwater flow simulation is very important. Because many hydrologic boundary conditions can be mathe-matically represented in more than one way and every method has its own advantages and limitations, therefore the determination of which mathematical representation of a boundary condition needed more consideration. The process of establishing underground water models com-pletely and accurately is very complicated. We should make sure that every step in that process is valid.