Lenka MEŇKYOVÁ

The algorithm of georelief raster model interpolation using Lagrange polynoms

Meňkyová, L.: The algorithm of georelief raster model interpolation using Lagrange polynoms. Kartografické listy, 2004, 12, 10 figs., 1 tab., 10 refs.

Abstract: For several decades geo-science disciplines have been using interpolation methods for creation of digital georelief models. This article is focused on digital elevation model calculations for irregular discrete input fields of vectorised contours, design of interpolation algorithm using the Lagrange interpolation method in the direction of gradient, taking into account the geometric properties of georelief models. Obtained results are compared using simple statistical methods like Kriging and Spline with tension and implemented in software used in the model creation.

Keywords: georelief modelling, interpolation, Lagrange interpolation method, grid