Cartographic Animation

source: http://cartography2.org/Chapters/page12/HistoryMapAnimation.html

Cartographic animation maps show information using animation (often as a progression of time). For instance, weather maps will show the progression of a weather system as it rolls over a geographic area (showing the varying size, shape, and intensity over time). In the map above, newly built houses are depicted as pop-up circles as a timeline progresses thru the 50s and into the 90s.