[R-sig-Geo] (Linear) interpolation in three (or more) dimensions

2014-06-03 Thread Mark Payne
Hi, I have a dataset that consists of satellite observations on a regular lon-lat grid at taken at regularly time pointts. Unfortunately due to cloud cover, there are gaps dispersed semi-randomly throughout the 3D data array. I would like to fill these gaps. The best solution I guess is

Re: [R-sig-Geo] (Linear) interpolation in three (or more) dimensions

2014-06-03 Thread Pascal Oettli
Hello Mark, The DINEOF method is designed for problems as yours. There is an implementation in R here (http://menugget.blogspot.de/2012/10/dineof-data-interpolating-empirical.html) but it doesn't directly work on Raster* object. Hope this helps, Pascal On Tue, Jun 3, 2014 at 3:27 PM, Mark

Re: [R-sig-Geo] (Linear) interpolation in three (or more) dimensions

2014-06-03 Thread Edzer Pebesma
package gstat offers simple 3D interpolation (idw, kriging), e.g. library(gstat) example(gstat3D) and also spatio-temporal kriging; some memory limitations there may be dealt with by using local kriging (see ?krigeST). On 06/03/2014 08:27 AM, Mark Payne wrote: Hi, I have a dataset that