Hi,
I am using ordinary kriging to interpolate species distribution based on sightings per unit effort summarized by 5' squares to points. I have done this with many species and my outputs have looked great, but for some reason, the output for one dataset I have has shows dots all over it (where the point data i'm using to interpolate it is). I have attached a visual for reference. The input data does not differ from the other ones I've been using and I have used all the same methods and paramenters. This includes neighborhood smoothing, so altering this parameter does not fix the problem. Does anyone know why this is occuring or what I can do to fix it? I have used the Kernel smoothing method instead, and the output looks better, but I want to keep all my methods the same as I have used for the other species, so if there is a way to fix it usint ordinary kriging, that would be best.
Thanks in advance for your help!