Articles | Volume 6, issue 2
SOIL, 6, 269–289, 2020
https://doi.org/10.5194/soil-6-269-2020
SOIL, 6, 269–289, 2020
https://doi.org/10.5194/soil-6-269-2020

Original research article 14 Jul 2020

Original research article | 14 Jul 2020

Oblique geographic coordinates as covariates for digital soil mapping

Anders Bjørn Møller et al.

Model code and software

R code and data for the revised manuscript "Oblique geographic coordinates as covariates for digital soil mapping" Anders Bjørn Møller, Amélie Beucher, Nastaran Pouladi, Mogens Greve https://doi.org/10.5281/zenodo.3820068

OGC (Oblique geographic coordinates) Anders Bjørn Møller https://bitbucket.org/abmoeller/ogc/src/master/rPackage/OGC/

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Short summary
Decision trees have become a widely adapted tool for mapping soil properties in geographic space. However, it is problematic to implement spatial relationships in the models. We present a new method which uses geographic coordinates along several axes tilted at oblique angles in the models. We test this method on four spatial datasets. The results show that the new method is at least as accurate as other proposed alternatives, has a computational advantage and is flexible and interpretable.