Australia Yearbook - 2001

40 Year Book Australia 2001
Temperature
The history of annual mean temperature over
Australia through most of the twentieth century is
shown in graph C2.10.
The overall warming trend during the second half
of the century evident in graph C2.10 is much
more strongly evident in minimum
temperatures than in maximum
temperatures and it is not uniform over the
continent. In fact, some parts of NSW and
northern Queensland experienced a slight
cooling trend over the century as a whole, as
shown in map C2.11.
1
0.5
Te mp e ra ture Ano ma l y
11 year mean
Temperature Anomaly (C°)
0
-0.5
-1
-1.5
1910 1920 1930 1940 1950 1960 1970 1980 1990 2000
C2.10 Areal average temperature anomalies (°C) over Australia relative to the
1961–90 normals for the period 1910–99.
DARWIN
BRISBANE
PERTH
°C
SYDNEY
2.0 – 2.5
1.5 – 2.0
1.0 – 1.5
0.5 – 1.0
0.0 – 0.5
-0.5 – 0.0
-1.0 – 0.5
ADELAIDE
MELBOURNE
CANBERRA
C2.11 The trend in annual mean temperature over Australia for the period 1910–99 in °C per
century. Areas coloured red have warmed. Those coloured blue have cooled.
HOBART