Is there a way or an equation to determine the best distance for search radius to be used in interpolation? Also, how do you decide for the cell size or the resolution of the resulting raster file?
Thanks in advance! :)
For sources and some additional procedures for 'optimal circular search radius' see attached.
The cell size was in our cases dependent on the available data.
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Hi all, for raster size see this link:
http://spatial-analyst.net/wiki/index.php/Grid_size_calculator
With R-CRAN is relatively simple
It always depends how much data (points) You have (I mean density. Good method is to measure average and minimum distances between all points, and pixel size of DEM can not be smaller than half average distance between points.
All the best!
Hi Amores,
To determine a suitable pixel size for Raster data see the paper by Hengl 2006.
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