I have a map where I have two point layers (representing bird surveys in a given year) overlaid by a 1km x 1km grid (polygon) that divides my study area into habitats. I want to be able to select those grid cells where I have points from both point layers (so, points for each year) to compare data. I thought using the intersect tool would be the best way to go about this but I continually get the below error:
WARNING 000117: warning empty output generated
Any suggestions would be welcomed; I'm not even sure if intersect is the best tool to use for something like this.
PhD student Charles Darwin University