When resampling NED, should I use Cubic Convolution, Bilinear interpolation or Nearest Neighbor?
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 stairstepping and periodic striping in the data which may not be apparent when viewing the elevation data but might affect the derivatives, such as shaded relief or slope.
