What is the 'mixing height' in meteorology and how does it affect wildland fire smoke and fire behavior?
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A
The altitude at which aircraft must fly to avoid smoke columns during aerial firefighting operations
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B
The height to which the atmosphere mixes vertically; a low mixing height traps smoke and limits convective column development
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C
The altitude above which humidity is too low to affect fire behavior or smoke dispersal
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D
The elevation difference between the valley floor and ridge tops that determines drainage wind speed