A bubble map is a visual of a geological dataset on a map. These variables or points use bubbles to plot, on all the regions of the map as the data represent. The bigger a bubble is on the map, the more data is present in the dataset for that region and vice versa.
Why do you need it?
A bubble map represents the proportion of data in such a way that visually you can see on the map, the region which is more affected by data, and which is not. This map can help us to analyze a problem effectively and saving us a lot of time.
What kind of data you can visualize with it?
If you have a geographical-data with one variable, then the bubble map is beneficial. Assume you have a dataset in which we have average accidents that occurred in Europe in the last 10 years by countries, then this map is the best alternative. It can conclude for us visually which country is most accidental by looking at the biggest bubble, which leads to adopting certain measures to overcome this.