The 6 °C increase in surface temperature from burning alone was not enough to change the environmental conditions so that pyro-cumulonimbus could form. There was still a negatively buoyant layer between 4000 and 6000 m that prevented rising air from freely rising. What important additional factor changed because of the fire and why was it important?

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Answer

The moisture increased from the combustion of cellulose, and the resulting increase in dew-point temperature increased the level of neutral buoyancy to 16 km so that a pyro-cumulonimbus could form

Answer

The moisture increased from the combustion of cellulose, and the resulting increase in dew-point temperature removed the negatively buoyant layer between 4000 and 6000 m so that air could freely rise from the surface to 16 km forming a pyro-cumulonimbus

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Answer

The vertical winds increased because of the heating, which lifted air parcels along with ash and coals through the negatively buoyant layer between 4000 and 6000 m so the air could then freely rise to 16 km forming a pyro-cumulonimbus

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The 6 °C increase in surface temperature from burning alone was not enough to ch...

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