IDW interpolation method

Question

Hi,

I'm doing my end-of-degree about geostatistical interpolation. I'm using IDW to interpolate some  Soil Moisture data from a surface. The  thing is, that I'm looking for one single value for the whole area I'm interpolating (because I need to compare it with the soil  moisture mesaured in the whole area by satellite). I don't know which parameter I should vary to accomplish that aim.

Thanks in advance for the help

JimCousins · Answer

If you are seeking a single value, why are you interpolating a surface? Could you simply get statistics on the selected point data, and then choose which statistic you wish to use (ie: mean value)?

Regards,

Jim

DanPatterson_Retired · Answer

Sorry, I stand by my suggestion of methodology.

DanielFernandez_Perez · Answer

Hi,

thanks for advice. The aim of the project is to test some methods to interpolate the SM to get to know if the classical mean is cost-effective. I got the grid showwn

And when I try to use IDW,  I always get things like that:

Which I know is the common thing. But, what I need, is to get, one single value. I tried to change  the  Z resolution, but it seems that it doesn't listen to me.

I don't know what to do.

Thanks in advance