5134620
Beschreibung
Mindmap von Hayden McElduff, aktualisiert more than 1 year ago
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Erstellt von Hayden McElduff
vor mehr als 8 Jahre
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Why do bushfires occur?
- Fuel
- Twigs and leaves
- Undergrowth and vegataion
- More concentrated
the fuel, faster a
fire can burn
- Twigs and leaves
- Weather
- Wind speed
- Wind gives continuous oxygen
- High temperature
- Hot, dry conditions
and high winds =
bushfires
- no rainfall can increase risk
- Wind can light new fires (spot fires)
- Wind reduces humidity
and cause fires to
continue burning
- Wind blows flames into
fresh fuel
- Wind speed
- Topography and slope
- Every 10° slope increases
the speed of fire doubles
- decelerate going
downhill
- accelerate going uphill
- Every 10° slope increases
the speed of fire doubles
- Temperature inversion
- inversions common during
night when cool air collects
close to ground
- Inversion is where a layer of
warm air sits above a layer of
cold air
- inversions common during
night when cool air collects
close to ground
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