[GRASS-user] Interpolating rainfall data across area from points

Rich Shepard rshepard at appl-ecosys.com
Fri Oct 12 13:17:44 PDT 2018

On Fri, 12 Oct 2018, Markus Metz wrote:

> With only 58 points, you will not get a lot of spatial detail, no matter
> what interpolation method you use. For example, using 58 points to create
> a surface with e.g. 1 million points is a waste of time: there is simply
> not enough spatial detail in the input. You can check, as you have done,
> by changing the resolution of the current region for the output and
> comparing the results. The only solution for more spatial detail is to get
> more input points.


   Thanks for the insight. Yes, there are too few data points for the size of
the area. So, I'll not use this map, but present a table of annual mean
values instead.



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