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<FONT FACE="Verdana, Helvetica, Arial"><SPAN DEFANGED_STYLE='font-size:12.0px'>I have a file of points representing data from the Baltic Sea, which I need to interpolate to create several different surfaces.<BR>
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Normally, I’ve used RST interpolation in the past. However, these points form a regularly spaced grid of sampling locations (with complete coverage) and there are MANY points (several hundred thousand). <BR>
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Given this, is there any advantage to using IDW or RST interpolation (or an alternative algorithm) with respect to 1) accuracy of the surface models derived from interpolation and 2) speed of interpolation?<BR>
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Thanks for the advice<BR>
Michael<BR>
______________________________<BR>
Michael Barton, Professor & Curator<BR>
School of Human Origins, Cultures, & Societies<BR>
Arizona State University<BR>
Tempe, AZ 85287-2402<BR>
USA<BR>
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voice: 480-965-6262; fax: 480-965-7671<BR>
www: <a href="http://www.public.asu.edu/~cmbarton">http://www.public.asu.edu/~cmbarton</a><BR>
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