Australia heat map
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Australia heat sparks chart change

9 January 2013 Last updated at 10:22 GMT

Temperatures in Australia are so high that the Australian Bureau of Meteorology has had to add new colours to its weather charts.

Two shades of purple will now be used to indicate temperatures above the previous 50C limit.

Aaron Coutts-Smith, manager of climate services at the Bureau of Meteorology, explains the changes.