I am trying to use the 'kernel interpolation with barriers' tool in the Geostatistical Analyst toolbox of ArcGIS 10.3. My data consists of 600 marine animal relocations, and I am trying to calculate the kernel density estimate using a polygon shapefile of the coastline as a barrier (the animals do not use land).

My relocations all have the same weight (i.e., the z- value for all points is 1).

I initially tried the tool by setting the function to 'gaussian' and the 'order of polynomial' to 0. this was based on the parameters used in the paper "Three-dimensional foraging habitat use and niche partitioning in two sympatric seabird species, Phalacrocorax auritus and P. penicillatus" by Adam G. Peck-Richardson et al (2017).

After running for 4.5 hrs, the output was completely useless, where all the cells had a value of 1.

I don't see a lot of documentation for this tool, and I don't understand why I got an output with a uniform value. Any insight?

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This analysis is far too complex to explain in detail here, but I found a textbook that provides step-by-step examples.

"An introduction to using GIS in marine biology supplementary workbook four: investigating home ranges of individual animals" by Colin D. MacLeod.

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