I am a college student working on an independent research project and I am trying to figure out how many points fall within a polygon.
I am examining the impacts of zoning in the Great Barrier Reef and I am currently focusing on coral bleaching occurrences.
I have already created a map in ArcMap with a layer for recorded coral bleaching (symbolized by levels of severity) and a layer file of the different zones (general use, conservation park, etc).
We already created a count field and a spatial join between the point shapefile (coral bleaching) and the polygon shapefile (zones). The problem we are having is that when we try to group or summarize the points to the zones the program is recognizing each area (over 100) as its own zone instead of grouping the zones together. For example if there are 45 specific areas that are classified within the general use zone the computer counts all 45 areas instead of lumping them together under general use. Right now it is stating that each zone only has 1 value within it.
Question- What tools in ArcMap would be able to group the polygons together based on a common field (zone_) even with 1000 different values.
The scenario is: Given a layer bleaching occurs and a layer of zone boundaries by zone-use type, calculate/summarize the number of bleaching occurrences in within each zone.