Here is a map looking at a century of California wildfires, sliced into 100-square-mile zones.
Here are some close-up extracts.
The data comes from the Fire and Resource Assessment Program (acronymed to…FRAP) accessed from Living Atlas.
This is an update to the previous version where I made a topological error (intersection rather than within when performing the spatial join) and way overcounted the fires. This version is as truthy as can be, I think.
Here is a GIS-y how-to (which is how I discovered my error —there’s a lesson in that). Here’s the gist: Extract only wildfires from the data, filter to most recent 100 years, aggregate to 100 square mile hexagons, cartographize. Fin.
Here is a cartographic how-to. Here’s the gist: Examine defaults carefully and make your own choices. Think about the emotional/biological implications of using red in a thematic map. Make range breaks easy to conceptualize.
My regards to those who have suffered because of these wildfires. I hope that, as with any map, a visualization can help reveal some amount of insight and awareness, however small.
5 thoughts on “100 Years of Wildfires”
Lovely if scaaary maps! Your extracts appear to be truncated @ right, on mobile @ least even in landscape mode. Will check o desktop after school run and let you know.
Ditto desktop version on mobile, will check real desktop too
Thanks Andrew. They are just square images. Maybe that’s what you are seeing?
Yes but text is truncated @ right margin or so it seemed? Don’t want to loose any info / wisdom due to silly formatting, now do we? 🤠
I love the map. I just wish the text is readable. It is very hard with the text transparency? / color scheme against the map.