Spatial analyses of groundwater levels using universal kriging |
| |
Authors: | Kemal Sulhi Gundogdu Ibrahim Guney |
| |
Institution: | (1) Department of Agricultural Structures and Irrigation, Faculty of Agriculture, Uludag University, Bursa, 16059, Turkey;(2) Department of Mathematics, Faculty of Arts and Sciences, Uludag University, Bursa, 16059, Turkey |
| |
Abstract: | For water levels, generally a non-stationary variable, the technique of universal kriging is applied in preference to ordinary
kriging as the interpolation method. Each set of data in every sector can fit different empirical semivariogram models since
they have different spatial structures. These models can be classified as circular, spherical, tetraspherical, pentaspherical,
exponential, gaussian, rational quadratic, hole effect, K-bessel, J-bessel and stable. This study aims to determine which
of these empirical semivariogram models will be best matched with the experimental models obtained from groundwater-table
values collected from Mustafakemalpasa left bank irrigation scheme in 2002. The model having the least error was selected
by comparing the observed water-table values with the values predicted by empirical semivariogram models. It was determined
that the rational quadratic empirical semivariogram model is the best fitted model for the studied irrigation area. |
| |
Keywords: | Universal kriging semivariogram groundwater water-table |
本文献已被 SpringerLink 等数据库收录! |
|