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Elevation FAQs - 42 Found

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Which resampling methods are best for preserving DEM accuracy and terrain characteristics?

Cubic convolution and bilinear interpolation are the preferred methods of resampling digital elevation data, and will result in a smoother appearance. Nearest neighbor has a tendency to leave artifacts such as stair-stepping and periodic striping in the data which may not be apparent when viewing the elevation data but might affect derivative products, such as shaded relief or slope rasters.


Tags: Maps, Topographic, Data Products