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Kriging Of Groundwater Levels – A Case Study
Kriging Of Groundwater Levels – A Case Study
Journal of Spatial Hydrology
In this paper, application of the spatial statistical technique, kriging, for the spatial analysis of groundwater levels is shown. The data set consists of groundwater levels measured at about 60 points (the number of points vary from year to year) twice in a year (June and September) for six years (1985-1990) in an area of 2100 sq km in part of the canal command area of Indira Gandhi Nahar Pariyojana (IGNP) in Rajasthan, India. With the use of measured elevations of the water table, experimental semivariograms were constructed that characterises the spatial variability of the measured groundwater levels. Spherical, exponential …
Estimation Of Aquifer Transmissivity Using Kriging, Artificial Neural Network, And Neuro-Fuzzy Models
Journal of Spatial Hydrology
In interpolation of groundwater properties such as transmissivity, due to the unknown distributed values of the variables and heterogenity, the best and the unbiased aspects are frequently difficult to obtain. Therefore, applying a modern technique is necessary to obtain a real estimation of transmissivity. To gain the transmissivity values as an input data in groundwater modelling, the ordinary log kriging method has been used. In this study, the efficiency of the Adaptive Network based Fuzzy Inference System (ANFIS), artificial neural networks and ordinary kriging are investigated for interpolation of transmissivity in an unconfined aquifer. The results indicate that ANFIS model …