FIGURE8 Australia’s average annual rainfall
Tully
Kati Thanda / Lake Eyre
Average annual rainfall (mm)
800 to 1200 400 to 800
Over 2400
2000 to 2400 1600 to 2000
200 to 400
0
250 500 km
Under 200
1200 to 1600
Source: Bureau of Meteorology 2003, on the Australian Water Map, Earth Systems Pty Ltd
FIGURE9 Australia’s rainfall variability
Darwin
Weipa
Kalumburu
Kowanyama Katherine
Cairns
Normanton
Halls Creek
Broome
Townsville
Tennant Creek
Mt Isa
Port Hedland
Mackay
Telfer
Longreach
Alice Springs
Rockhampton
Giles
Birdsville
Newman
Charleville
Carnarvon
Oodnadatta
Wiluna
Brisbane
Marree
Cook
Bourke
Coffs Harbour
Geraldton
Port Augusta
Kalgoorlie Boulder
Dubbo
Ceduna
Perth
Mildura
Sydney
Port Lincoln
Esperance
Adelaide
Canberra
Horsham
Albany
Melbourne
Orbost
Warrnambool
St Helens
Strahan
0 250 500 km
Hobart
Key Index of rainfall variability Very high (1.5–2.0)
Moderate (0.75–1.0)
Low to moderate (0.5–0.75)
High (1.25–1.5)
Low (0–0.5)
Moderate to high (1.0–1.25)
Source: MAPgraphics Pty Ltd, Brisbane
264 Jacaranda Humanities Alive 7 Victorian Curriculum Third Edition
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