[GRASS-user] what are acceptable smoothing values in v.surf.rst

Michael Barton Michael.Barton at asu.edu
Wed Nov 4 10:20:15 PST 2015

We’re having trouble figuring out what range of values can be used as a smoothing parameter, especially when input from a map of smoothing values. What is the acceptable or functional range? How does smoothing affect a value in a cell?

The case that brought this up is one of my students doing a temporal surface interpolated from radiocarbon dates across the western Mediterranean. He’d like to use a value related to the SD of the dates (maybe the CV) to smooth this temporal surface so that smaller SD’s have the surface more closely matching each known date and higher SDs let that surface respond more to the neighboring dates.


C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Head, Graduate Faculty in Complex Adaptive Systems Science
Arizona State University

voice:  480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671 (SHESC),  480-727-0709 (CSDC)
www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu

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