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Flashcards in Wildfire Hazards Deck (7)
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1

What is a wildfire?

Any rural fire which is uncontrolled and spreading

2

What is the nature of wildfires?

They move at up to 14mph, consume everything in its path - trees, homes and land. They generally occur in Australia, America, Canada, south east Asia and South Africa.

3

What are the conditions that favour wildfires?

Vegetation type - Plants that have little water content in them burn more easily. Succulent plants like cacti are harder to burn.
Climate - cyclical climatic conditions such as El Niño cause warmer than average temperatures, droughts cause less moisture, heatwaves
Wind - strong winds can fan the flames further and cause vegetation to dry faster
Fire behaviour - weather: heat causes lack of moisture, wind spreads embers and sparks. Topography: slopes cause fires to move upwards due to convection. Fuel: can change and remove fuel to control fire

4

What causes wildfires?

There are three things:
- heat e.g. lighters, cigarettes, thunderstorm, arsenics.
- fuel e.g. trees, leaves, petrol, houses, dry grass
- oxygen

5

What are the Wildfire prevention strategies?

- you should clear combustible debris from around your home
- replace flammable plants with fire resistant plants e.g. French lavender
- cover house in fire retardant gel
- kids are taught about wildfires e.g smokey bear teaches kids about how to deal with wildfires and warning signs
- Take Action is a campaign that helps young adults
- smokey bear and forest fire prevention campaign have aided in reducing number of acres lost annually from 22 million to 6.5 million

6

How do emergency services plan and respond to wildfires?

- Firewise communities USA Recognition Programme involves people meeting up with firefighters and state researchers to educate them
- emergency services have a wildfire action plan

7

How are wildfires mitigated?

- FireALERT MK is a wildfire detection sensor system that detects, analyses and communicates the occurrence and position of wildfire
- Terrestrial ground visual systems monitor smoke and fire presence
- earth orbiting satellite systems, well suited for post fire damage review