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How far from a forest fire do you have to be for a daily temperature record to count? (lemmy.world)

submitted 1 year ago by Lawyerator@lemmy.world to c/asklemmy@lemmy.ml

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There have been some impressive (and scary) temperature records set in the past couple weeks. That said, there are parts of Canada that are currently on fire that likely have a daily temperature in the hundreds of degrees. Clearly that doesn't count for any sort of temperature record. What I'm wondering is: where's the dividing line? How far away from a big fire do you have to be to record a valid daily temperature?

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[–] dimath@lemmy.fmhy.ml 5 points 1 year ago (1 children)

Well, assuming fire temperature to be 800C and temperature drop off close to 1/r² - you need to be approximately 28 meters away from a point source to feel 1 degree Celsius increase in temperature. Forest fire is not a point source, it's a wall of fire, but give it or take - 100 m away it you shouldn't feel any heat coming from the first fire.

[–] Shikadi@wirebase.org 2 points 1 year ago (1 children)

Other people are saying 2, is that close to 100m?

[–] qisope@lemmy.world 1 points 1 year ago (1 children)

it's about 2 of 100m / 2

[–] Rivalarrival@lemmy.today 1 points 1 year ago

It's about 2 of 100m / m.