John Nelson’s 100 Years of Wildfire is a static map showing a century of California wildfires, simplified into zones of 100 square miles. The map measures the cumulative burn area for each zone over that entire time: this can exceed 100 or even 200 percent if large fires are frequent enough, or the whole damn area burns down more than once.
The California Fire Observatory combines longer-term data about forest cover with up-to-date information about wildfire hotspots and wind speed. “We map the drivers of wildfire hazard across the state—including forest structure, weather, topography & infrastructure—from space. […] By providing these data for free we hope to support the development of data-driven land management strategies that increase wildfire resilience—for forests and communities—enabling people and nature to thrive.” [Maps Mania]