![]() The USATornados is the point layer that contains all the tornado locations. Then choose “Aggregate Points” in Summarize Data category: Now let’s aggregate the tornado locations into 25km hexagons. The following web map shows approximately 19,000 points covering 15 years (From 1994 to 2008) of tornadoes in the USA.Īs you can see, it’s hard to see where tornadoes mostly occur in the US because points are overlapping each other. ![]() Here is an example of how to aggregate US tornado locations into hexagons in ArcGIS Online. Also included in these ready-to-use layers are hexbins for different regions in the world with different resolutions. ![]() The gallery contains a collection of common geography layers such as country, state, and census boundaries useful for many analyses. With the ArcGIS Online July 2015 update, ArcGIS Online spatial analysis tools now added build-in Living Atlas Analysis Layer gallery. For more information on hexagonal binning, see our previous blog posts thematic mapping with hexagons and using binning technique. This has become increasingly popular because creating thematic maps with hexagons is an effective way to visualize patterns and clusters in your data especially when a large number points overlapping each other. The process of aggregating and summarizing point data into equal sized connected hexagons is called hexagonal binning.
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