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由于地下水的储藏与运行特性及实际条件的限制,在对其进行监测时往往只能得到有限的监测结果,因此需要借助已知点信息来对地下水污染物运移参数的空间分布特性进行估计,着重阐述了浅层地下水环境评价指标的时空变异性,通过实验模拟水质指标在浅层地下水非均质环境中的运移,分析了示踪剂氯离子迁移过程中浓度变化的各向异性,进行了空间点去除率为33%和50%条件下的时空协同克里格估值;结果表明,在其他时刻只有参估点时间信息而无待估点时间信息,无论待估点的多寡,时空协同克立格估计效果相比普通克立格基本相当,证明了建立在地下水环境评价变量随机性空间统计分析基础之上的协同克里格最优估计方法切合实际,具有一定的实用价值。
Due to the limitation of storage and operation characteristics and actual conditions of groundwater, limited monitoring results can often be obtained when it is monitored. Therefore, it is necessary to estimate the spatial distribution of groundwater pollutant transport parameters by using known point information, The spatial and temporal variability of the evaluation index of shallow groundwater environment is emphatically expounded. By experimentally simulating the migration of water quality index in the shallow groundwater heterogeneous environment, the anisotropy of concentration change of the tracer chloride ion is analyzed. Spatial and temporal collaborative Kriging estimates of spatial point removal rates of 33% and 50% are obtained. The results show that at other times, The result of collaborative Kriging is almost equal to that of ordinary Kriging, which proves that the method of cooperative Kriging based on the statistical analysis of random variables of groundwater environmental variables is practical and has certain practical value.