2024 Jasper Alberta Fire Didn't "Destroy Forests" - It Literally Turned Soil To Ash w. Energy 7X That Of Hiroshima Bomb
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Out in the valley, the destruction was even more intense. On the mountainside below Marmot Basin ski resort, one of the most important tourist draws in the national park, evidence of the fire’s savagery left Landon Shepherd, a wildland firefighter and a fire behaviour expert for more than three decades, speechless. Sometimes, if a wildfire burns hot enough, it can sterilize the soil, killing the micro-organisms, the seeds, the root structures, and the mycelium networks that fire-adapted ecosystems rely on to recover. At Marmot Basin, the soil wasn’t just sterilized; it was completely gone, burned to ash by thousand-degree heat and then blasted away by hurricane-force winds. Across a huge swath of mountainside where the suspected fire tornado touched down, not a single tree was left standing. It didn’t look like a wildfire at all. It looked like the site of a nuclear blast.
Other parts of the park now resembled an alien landscape. In areas around the Edith Lake cabins, where fuel treatments had helped tame the fire’s behaviour at least a little, some of the trees appeared to have developed leopard spots. This can happen when the temperature in a forest rises so fast that the sap in the trees boils before the tree burns. The boiling sap causes sections of the blackened bark to erupt in little jets of steam, leaving behind round pockets of white.
On the slopes of Signal Mountain and the Maligne Canyon lookout, an even weirder sight remained. When super-heated gases driven by the fire’s ferocious winds ripped through stands of fir and lodgepole pine, they stripped the bark from trees completely and bent them forward almost ninety degrees in smooth, graceful arcs. The extreme temperature differential between the windward and leeward sides of the trees caused their cell fibres to dry out at different rates, locking them in place. Experts call it fire freeze. Whole mountainsides of gleaming, white tree trunks now appeared frozen in time, cursed to stay bent forever before the fury of a phantom wildfire.
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On the six-point fire behaviour classification scale, a fire becomes a rank-six blaze when its energy output exceeds 10,000 kilowatts per metre. At this point, fire suppression is essentially impossible. The McDougall Creek wildfire, which destroyed nearly 200 homes near Kelowna, BC, exhibited fire intensity of 100,000 kilowatts per metre. A Canadian Forest Services study that took detailed plot samples and reconstructed the Jasper fire’s behaviour found that, at its height, it was generating more than 386,000 kilowatts of energy per metre, over thirty-eight times hotter than the top of our existing scales and seven times more energy than the nuclear bomb dropped on the Japanese city of Hiroshima across a flame front more than eight kilometres wide.
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https://thewalrus.ca/the-jasper-wildfire-produced-more-energy-than-a-nuclear-bomb/