The recent wildfires in Los Angeles have highlighted the often overlooked threat posed by airborne embers. These tiny burning particles can travel for miles, igniting new fires and contributing significantly to the spread and destruction caused by wildfires.
The recent wildfires in Los Angeles have tragically claimed lives and destroyed over 12,000 structures. While the devastating images of raging flames are often the focus, experts emphasize that the silent threat of airborne embers plays a crucial role in the spread and destruction caused by these fires. Contrary to popular belief, most homes are not consumed by a rapid wall of fire, but rather ignite after being bombarded by these tiny, burning particles.
An ember, a piece of burning debris, can travel for miles, carried by wind and igniting new fires in unsuspecting areas. These embers, known as firebrands when airborne, can originate from vegetation, structures, or even everyday objects that catch fire. As they accumulate in vulnerable spots like fences, shrubbery, or roof spaces, they create a tinderbox, ready to be ignited by even the slightest change in conditions. Wind plays a significant role in amplifying the ember threat, propelling them further and increasing their burning intensity. A seemingly harmless ember can smolder for a considerable time before suddenly erupting into flames under the influence of a gust of wind, causing widespread damage. The 2017 California wildfire, where embers crossed a six-lane highway, serves as a stark reminder of the insidious nature of this threat. This event shattered the notion that embers couldn't travel such distances, highlighting the importance of understanding and mitigating this risk. Researchers are actively studying the dynamics of ember production and spread, working to incorporate this knowledge into fire models and develop more effective defensive strategies for homes and communities. This research, funded by the U.S. Forest Service and National Science Foundation, aims to provide valuable insights into how to better protect against the destructive power of wildfires
Wildfires Embers Firebrands Fire Spread Wildfire Prevention Climate Change
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