The Nature Of Wildfires

Question 1

Define wildfire

Answer 1

Uncontrolled fire fuelled by natural vegetation

Often start in rural localities and can migrate to rural urban fringes

Question 2

Why are wildfires so dangerous

Answer 2

Burn buildings / animals / people

Uncontrollable/ unpredictable / quick spread

Large size

Spotting

Question 3

Surface fires

Answer 3

Along floor
900 degree
Cool quick
easy controlled but can spread

Question 4

Ground fires

Answer 4

Burn organic matter in soil by glowing combustion
Slow spread
540 degrees
Long period of time

Question 5

Crown fires

Answer 5

Top canopy 
1100 degree 
Intense - hard to contain 
Powers 
Spread quick from tree top to tree top

Question 6

Conflagration

Answer 6

Large fire with a character of aggravation - enchaned by wind action and fire brands

Question 7

Ladder effect

Answer 7

Spreading from forest floor to canopy

Question 8

Conditions needed 3

Answer 8

Fuel - dry vegetation

Ignition source - human / physical

Weathering conditions

Question 9

Firebrands

Answer 9

Burning pieces of vegetation carried ahead of fire by convection current or wind 💨

Question 10

Fires in Australia

Answer 10

Hot dry flat

Naturally

Prescribed fires

Victoria

Question 11

Fires in Asia

Answer 11

Affected by El Niño

Caused 1997 fires - drought - health problems - economic losses

South east Asia haze

Question 12

Fires in Europe

Answer 12

Prescribed burning to maintain ecosystem

50,00 annually in Mediterranean basin