Assessing interpolation accuracy in elevation models

  title={Assessing interpolation accuracy in elevation models},
  author={Joseph D. Wood and Peter F. Fisher},
  journal={IEEE Computer Graphics and Applications},
Methods that identify the spatial variation in elevation model accuracy and highlight relative variation are proposed. Visualization within the geographic resources analysis support system (GRASS) is used to identify the accuracy preserved in interpolation digital contour data to produce elevation models. The interpolation routines are inverse distance weighting, contour flood filling, simultaneous over-relaxation, and one-dimensional spline fitting. The results of the interpolation process are… CONTINUE READING
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