Examine these primary sources of scientific evidence.

What does this graph show about the extent and change in fires?

Hint: click on thumbnail graph above for more detail.

What does this fire scar map tell about fires in 2004?

How does this 2007 fire scar map compare with 2004?

Hint: Don’t forget to focus on West Arnhem Land.

Hint: look at the Legend and how the months relate to the types of fires.

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Seasonal extent of 28,000 km2 WALFA region burnt 1990-2007. (The WALFA years are circled).

Figure 1 - 2004 Fire Scars (Arnhem Land)

Green areas denote early dry season fires. Yellow, orange, pink and purple areas denote late dry season fires. (MODIS satellite imagery)

2004 Fire Scars - Arnhem Land

Green areas denote early dry season fires. Yellow, orange, pink and purple areas denote late dry season fires. (MODIS satellite imagery)

2007 Fire Scars - Arnhem Land