The map and figures show wildfires occurring between 1992-2012. Charts show aggregate statistics for each fire season based on the available data. The map shows wildfires at their site of discovery. Each point is sized by the total number of acres burned. Because of scale, fires smaller than 1000 acres are not visible on the map. Marker radius does match the distance scale of the map.
Move the slider left to right to see each year’s summary. Sounds like a lot went into creating the map. “Most data on wildfires are kept by a half dozen federal agencies and are riddled with inconsistencies, redundancies and inaccuracies. But researchers have begun cleaning up their data-collecting efforts.”
Link to the map can be found HERE.