|AUTHOR|| Cort Willmott (University of Delaware), Rob Raskin (Jet Propulsion Laboratory), Chris Funk (NCGIA), Scott Webber (University of Delaware), and Mike Goodchild (NCGIA).
National Center for Geographic Information and Analysis (NCGIA)
University of California, Santa Barbara (UCSB).
Chris Funk (chris(at)geog.ucsb.edu)
|PLATFORM|| UNIX (DEC Alpha, SGI Challenger)
Also required are FORTRAN and C compilers and "ghostview" for viewing PostScript files
|PURPOSE||Spatial interpolation programs using spherical geometry|
+ variogram can be automatically fitted
+ All of the interpolation algorithms in Spherekit take account of the sphericity of the earth.
+ Inverse distance weighting
+ Ordinary point kriging
+ Thin plate spline
+ cross validation: error field, table of error summary statistics, histogram, and a scatterplot.
The overall error is computed either as the mean average error (MAE) or the root mean square error (RMSE).
+ Contouring and raster output
|CODES||Fortran and C codes available|