What is the significance of basemaps in ArcGIS Online?

The significance of basemaps in ArcGIS Online lies in their role as foundational geographical contexts that enhance the understanding and interpretation of specific layers and data visualizations. Basemaps serve as visual reference layers upon which other data layers are overlaid. They provide essential context such as terrain, political boundaries, and major geographic features, helping users to comprehend where data points are located in relation to real-world geography.

By utilizing a basemap, users can better analyze the spatial relationships of data and understand patterns or trends that might be less discernible without a geographical framework. This foundational aspect is crucial for effective analysis and communication of geographic information, making the data more meaningful and interpretable for users.

While basemaps may contribute to the aesthetic appeal of web maps and can be relevant in certain compliance contexts, their primary contribution is the contextual enrichment they provide to the data being analyzed.