网格序列法在地下水等水位线图绘制中的应用

The Application of the Grid Sequence Method in Groundwater-Table Contouring

为了提高地下水水位资料填绘、分析的自动化程度,实时反映地下水水位分布状况,揭示地下水漏斗演变规律,研究了网格序列法用于绘制地下水等水位线图的各个环节。通过对网格的顶点插值、状态编码、标值点确定等计算处理,结合地下水曲面水位梯度变化等因素,实现了计算机自动分析、计算、绘制地下水等水位线图,并能准确计算出各条等水位线所包围区域的面积。实验表明,所绘等水位线图符合实际情况,从而为地下水漏斗演变规律的可视化分析与研究提供了一种行之有效的先进方法和途径。

In order to improve the automation of filling and analyzing of groundwater water table data,real-time reflect the distribution of the groundwater table,and reveal the evolution rules of the groundwater depression cones,the different stages of the groundwater-table contouring with grid sequence method are researched.By means of the interpolation of acmes,coding the condition of the grids,ascertain the values of points,considering the factor of groundwater level gradient change,the automatic computer analysis,calculation and mapping of groundwater level contour can be implemented,while the areas surrounded by water level contour can also be calculated accurately.The experiment shows that the final mapping by the method is in accordance with the facts,thus the study provides a valid approach for the analysis and research of the visualization of the evolution rules of the groundwater depression cones.