I'm currently working on a ArcGIS task, however I'm struggling with an analysis that I want to do. It concerns the following;
I need to perform an analysis on the thickness of specific sandlayers. I have two files for this; one is a point file with specific boreholes and the other one is a table. I have already combined the two, but I need to figure out in what boreholes the sand thickness is at least 3,5m. However, I only know the height of the bottom and the top of the layer of sand. This means that I need to find a way to somehow select those boreholes in which height between the top layer and bottom layers is >3,5m. I was thinking that I have to some processing by substracting the height of the bottom from the height of the top to see the thickness of the boreholes. However, I can't seem to find the right solution to do this and find out what points are suitable or not.
Anyone can give me any tips or advise?
Thank you in advance!
Try it without the quotes. Just
layerdikte.BOTTOMSAND - layerdikte.TOPSAND >= 3.5