78
80
45’
82
84
86
88
50’
90
92
94
96
55’
98
o
00
02
04
116 00’
06
08
10
12
05’
14
16
18
20
10’
22
46
46
44
44
42
42
o
32 10’
40
40
38
38
36
36
34
34
32
32
15’
30
30
28
28
26
26
74
76
78
80
82
84
86
88
90
92
94
96
98
00
02
04
06
Southern Perth topographic map
08
10
12
14
16
18
22
Southern Perth water resources
Jandakot Underground
Water Pollution
Control Area
Indian Ocean
Churchman Brook
Reservoir
wy
Kwinana F
Garden
Island
Cockburn
Sound
Rockingham
0
1.5 3.0
4.5
6.0 km
South W
estern H
wy
Armadale
Water cycle broadsheet
side 1
20
Wungong Brook
Reservoir
Groundwater drinking water
resource
Mundijong
Reservoir protection zone
Drinking water
catchments
Railway line
Credit Norman J Snell.
24
Canning Dam
Reservoir
Southern Perth water resources map. 76
Napmaps Geoscience Australia.
40’
74
Portion Perth 1:100,000 Series Topographic Map. 72
Mediterranean climate - graphs
35
DARLING SCARP
30
Unconfined aquifers in
fractures of impermeable
rock
25
20
Mean maximum temperature
15
10
Mean minimum temperature
Water table
lake
250
Semi-permeable
sedimentary layer
10
0
Mean monthly precipitation
200
100
50
Jan Feb Mar Apr May Jun
Jul
Aug Sep Oct Nov Dec
Advection
Albany
7
Precipitation
Bunbury
Runoff & infiltration
The water cycle
200 km
1. Greenough River 2. Moore River 3. Swan River 4. Avon River
5. Canning River 6. Murray River 7. Collie River 8. Blackwood River
9. Warren River 10. Frankland River 11. Denmark River 12. Pallingup River
Annual evapotranspiration - potential
Annual rainfall - precipitation
2000 mm
1900 mm
1800 mm
1700 mm
Broome
Port
Hedland
< 250 mm
250-400 mm
400-600 mm
600-800 mm
800-1000 mm
400
2100 mm
Average winter
sea surface
temperature ( oC)
250
1000-1200 mm
1200-1400 mm
1400-1600 mm
1600 mm
600
1500 mm
Indian
Ocean
1400 mm
Carnarvon
1300 mm
Geraldton
Perth
1200 mm
1100 mm
Esperance
Albany
Credit Norman J Snell
30
28
26 Warm moist
24 tropical maritime
22 air mass
20
18
16
14
12 Cold dry
10 polar maritime
air mass
8
6
4
2
100
Credit Norman J Snell
Credit Norman J Snell
0
Credit Norman J Snell
L
11
9
10
Indian Ocean - evaporation and advection
L
12
8
Evaporation
from
Indian Ocean
H
4
Esperance
Water cycle broadsheet
side 2
H
3
5
6
Perth
L
2
Condensation
Evapotranspiration
L
Great Western Plateau - unco-ordinated
drainage and salt lakes.
150
0
Aug Sep Oct Nov Dec
1
0
250
50
Jul
5
Mean minimum temperature
100
Jan Feb Mar Apr May Jun
15
Mean maximum temperature
150
Credit Norman J Snell
Basement rock
20
200
0
Impermeable sedimentary layers
25
600
1200
1400
1000
800
600
Southern Ocean
Credit Norman J Snell
Confined aquifer
35
30
Precipitation - millimetres
Precipitation - millimetres
Sea
5
Mean monthly precipitation
Unconfined aquifer
Sand dunes
Karnet Weather Station
o
Latitude 32 o26’ S Longitude 116 04’ E
Elevation (ASL) 286 m
Temperature - degrees Celsius
SWAN COASTAL PLAIN
Surface runoff - drainage
Credit Norman J Snell
Perth Airport Weather Station
Latitude 31o 56’ S Longitude 115 o59’ E
Elevation (ASL) 15 m
Temperature - degrees Celsius
Groundwater - infiltration