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地下水位统测数据属于基础性资料,可为区域水文地质编图提供重要依据,也是地下水数值模拟建立初始流场的必要数据。部分地区由于缺少观测资料,布置地下水位统测点比较困难。针对这一难题,本文提出了一种设计、优化地下水位统测网的方法:首先通过密网格数值模拟获得参考地下水位等值线图,再根据初步设计的若干水位统测方案,进行水位采样作为统测试验结果,用Kriging插值法生成统测地下水位等值线图,通过对比参考地下水位等值线图评价插值误差,最终选取出精度高且投入少的最优方案。在鄂尔多斯盆地海流兔河流域对这种方法进行了尝试,效果较好。
The data of groundwater level measurement are basic data, which can provide an important basis for regional hydrogeological mapping and the necessary data for the establishment of initial flow field in groundwater numerical simulation. In some areas, due to the lack of observational data, it is difficult to arrange groundwater level measuring points. In order to solve this problem, this paper presents a method of designing and optimizing groundwater level mapping network: Firstly, the contour map of groundwater level is obtained by numerical simulation of dense grids. Based on the preliminary design of some water level mapping schemes, Sampling is used as the result of the test. Kriging interpolation method is used to generate contour map of groundwater level, and the interpolation error is evaluated by comparing the contour map of groundwater level. Finally, the optimal solution with high precision and less investment is selected. This method has been attempted in the Hai Riu Valley in the Ordos Basin, and the result is better.