I have a question for Idrisi32 users. I am trying to match the spatial resolution of a DEM. The first way I did it was to simply use the Expand command. The next way I did it was by using resample (writing a correspondece file and so on). But there is a third possibility to match the resolution wich should be even easier than the others. As far as I know it uses the overlay command with one of the other data sets, but which variation of it? And which additional data set could I use? I have other data like sand/gravel thickness or clay base height and so on. Do I have to use one of those? And does anyone know which of those three is most accurate and why?
I am happy about every answer I get.