The choice of optimal lag for Kriging interpolation of NWP model forecast

Анотація

in this paper a kriging method is reviewed and a way of its application in numerical weather prediction is proposed. The basic principles of the kriging are shown; the main advantage is its accuracy, but at the same time a disadvantage is its large computational complexity. The construction stage of the variographical model is highlighted, as it is the most important stage and has a significant impact on the accuracy of interpolation. The algorithm for the construction of the variographical model is described. special attention is paid to averaging an experimental variogram by introducing a special interval, called "lag". precisely this issue, according to the authors has a significant impact on the effectiveness of the practical application of kriging for the interpolation of meteorological parameters.

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