Canberra covers an area of 814.2 km² and is located just east of the Brindabella Range, part of the Snowy Mountains, about 150 km from Australia's east coast. The urban area, which is about a quarter of the area of the Australian Capital Territory (ACT), is located in the north-eastern part of the ACT at an average elevation of 580 metres above sea level. The highest point is the top of Mount Majura hill at 888 metres. Other significant hills include Mount Taylor (856 m), Mount Ainslie (843 m), Black Mountain (812 m) and Mount Stromlo (770 m).
The Molonglo River divides the city into two roughly equal halves. This river is impounded by Scrivener Dam to form Lake Burley Griffin, a large body of water in the city center that reaches 11 km in length and up to 1.2 km in width. Until the lake was dammed, the Molonglo River caused occasional devastating floods. It empties into the Murrumbidgee River, a tributary of the Murray River, northwest of Canberra. Several smaller rivers in the city area or not far from it empty into the Molonglo or the Murrumbidgee. These include the Queanbeyan River, the Cotter River, Jerrabomberra Creek and Yarralumla Creek. Ginninderra Creek and Tuggeranong Creek are dammed to form Lake Ginninderra and Lake Tuggeranong respectively.
The surrounding bushland is now a mixture of savannahs, shrublands, swamps and dry forests, a significant portion of which are combined in the Canberra Nature Park. The native forest in the region, which was once almost entirely eucalypt, served as a fuel and timber resource. Forestry began in 1915 with trials on a range of species including Pinus radiata on the slopes of Mount Stromlo. By the early 1960s, logging had decimated the eucalyptus, and water quality concerns led to the closure of the forests. Since then, plantations have expanded, with the benefit of reducing erosion in the Cotter River watershed. Today, the forests are popular recreational areas.
The population of the ACT lives almost exclusively in Canberra. In the rural part of the ACT there are only a few homesteads and villages with a combined population of just over 5000. The largest settlements are Williamsdale, Naas, Uriarra Village, Tharwa and Hall. Ten kilometres southeast of the city centre, just on the border of the ACT, is the New South Wales state town of Queanbeyan, with a population of around 36,000.
Climate
Canberra has a temperate oceanic climate (effective climate classification: Cfb). Due to the altitude and distance from the coast, there are four distinct seasons, but the climate is drier than in coastal cities. This is due to the city's location in the rain shadow of the Brindabella Range. The climate is characterized by hot to warm, dry summers and (by Australian standards) cool to cold winters with dense fog and frequent frost.
The highest temperature ever recorded was 44.0 °C on 4 January 2020, and three days earlier Canberra measured the worst air quality index of any major city in the world. Both were consequences of the devastating bushfires in Australia in 2019/2020 and the associated heavy smoke development.
The lowest temperature ever measured was -10.0 °C on 11 July 1971. Snow falls on average once or twice a year, but the amount is small and always melts again after a short time. Thunderstorms can occur between October and March, and most rain falls in spring and summer. Generally, the wind does not blow very strongly. The following table shows the average climate values from 1981 to 2010:
| Canberra |
| Climate diagram |
| J | F | M | A | M | J | J | A | S | O | N | D | | | | | | | | | | | | | | | Temperature in °C, precipitation in mm | | Source: Australian Bureau of Meteorology: Canberra Airport Station. Observation period: 1939-2010. Retrieved 27 December 2013. | |
Monthly average temperatures and precipitation for Canberra | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | | | | Max. Temperature (°C) | 28,7 | 27,7 | 24,8 | 20,5 | 16,3 | 12,5 | 11,8 | 13,5 | 16,6 | 19,9 | 23,3 | 26,3 | Ø | 20,1 | | Min. temperature (°C) | 13,7 | 13,6 | 10,9 | 7,1 | 3,7 | 1,3 | 0,2 | 1,3 | 3,8 | 6,4 | 9,5 | 11,9 | Ø | 6,9 | | Temperature (°C) | 21,2 | 20,7 | 17,9 | 13,8 | 10,0 | 6,9 | 6,0 | 7,4 | 10,2 | 13,2 | 16,4 | 19,1 | Ø | 13,5 | | | Precipitation (mm) | 58,5 | 56,4 | 50,7 | 46,0 | 44,4 | 40,4 | 41,4 | 46,2 | 52,0 | 62,4 | 64,4 | 53,2 | | 616 | | | Sunshine hours (h/d) | 9,5 | 9,1 | 8,1 | 7,3 | 6,0 | 5,2 | 5,8 | 7,0 | 7,7 | 8,6 | 8,9 | 9,4 | Ø | 7,7 | | | Rainy days (d) | 7,3 | 6,7 | 6,9 | 7,3 | 8,4 | 9,8 | 10,5 | 11,1 | 10,2 | 10,4 | 9,8 | 7,7 | | 106,1 | | | Humidity (%) | 59 | 62 | 64 | 69 | 76 | 78 | 77 | 73 | 69 | 66 | 60 | 58 | Ø | 67,6 | | Temperature | | | | | | | | | | | | | | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | | Precipitation | 58,5 | 56,4 | 50,7 | 46,0 | 44,4 | 40,4 | 41,4 | 46,2 | 52,0 | 62,4 | 64,4 | 53,2 | | | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Source: Australian Bureau of Meteorology: Canberra Airport Station. Observation period: 1939-2010. Retrieved 27 December 2013. |
Geometry of the city center
Canberra is a planned city, with the downtown area originally designed by American architect Walter Burley Griffin (assisted by his wife Marion Mahony Griffin). In the city centre on both sides of Lake Burley Griffin's main streets follow a wheel-and-spoke pattern rather than a grid. Griffin's urban design features an abundance of geometric forms, including concentric hexagonal and octagonal street patterns radiating from multiple radii. The city's later outlying districts, on the other hand, are not geometrically structured.
Lake Burley Griffin has been deliberately designed to relate its orientation to various topographical landmarks in Canberra. A 'land axis' perpendicular to the Central Basin extends from Capital Hill - the site of the new Parliament House - north-northeast across the north shore and along the prestigious ANZAC Parade to the Australian War Memorial at the foot of Mount Ainslie. At the south-western end of the land axis rises Bimberi Peak, the highest mountain in the Australian Capital Territory, about 52 km south-west of Canberra in the Brindabella Range.
The chord of the circular segment that forms the central basin of Lake Burley Griffin is perpendicular to the land axis and is called the "water axis". It extends northwest toward Black Mountain. A line parallel to the water axis on the north side of the city forms the "municipal axis". It corresponds to the course of Constitution Avenue, which connects City Hill in the Civic Centre business district with the Market Centre and the Ministry of Defence on Russell Hill. Commonwealth Avenue and Kings Avenue run from Capital Hill in the south to City Hill and the Market Centre in the north respectively, forming the western and eastern edges of the central basin. The area enclosed by the three streets is called the Parliamentary Triangle; this equilateral triangle forms the heart of Griffin's urban design.
The Griffin couple assigned spiritual values to Mount Ainslie, Black Mountain, and Red Hill, and originally planned to plant each of these hills with flowers. In this way, each hill was to be covered with a single, primary color representing its spiritual value. This part of her plan never came to fruition, as World War I slowed the construction of the capital and planning disputes led to Griffin's dismissal by Prime Minister Billy Hughes at the end of the war.
Urban structure
Canberra's urban areas are hierarchically structured. There are seven wards, each of which is subdivided into smaller neighbourhoods known as 'suburbs', regardless of location. Virtually all of these suburbs in turn have a district centre as a focus of commercial and social activity. The boroughs were settled in this order:
- Canberra Central (comprising North Canberra and South Canberra), largely in the 1920s and 1930s, expansion into the 1960s, 25 neighbourhoods.
- Woden Valley, as of 1964, 12 neighborhoods.
- Belconnen, as of 1966, 27 neighborhoods (two of which are not yet developed).
- Weston Creek, as of 1969, 8 neighborhoods.
- Tuggeranong, as of 1974, 18 districts
- Gungahlin, as of 1993, 18 districts (three of which have not yet been developed)
- Molonglo Valley, from 2010, 13 districts planned
Canberra Central largely follows Griffin's plans. In 1967, the National Capital Development Commission adopted a new superstructure plan, the "Y-Plan". Since then, further urban development has been based on a series of shopping and commercial zones linked by expressways, known as town centres. The layout of these centres resembles the shape of the letter Y. Tuggeranong forms the lower end, while Belconnen and Gungahlin are at the ends of the arms of the Y. Urban development is strictly regulated, partly by town planning measures and partly by restrictive use regulations for parcels of land. The federal government leased all land in the Australian Capital Territory for a period of 99 years, although the Territory government now administers most leases itself. Since the beginning of the 21st century, there have been persistent calls for a relaxation of planning guidelines.
Most neighborhoods have smaller stores and are located near a larger shopping center that serves several neighborhoods. Public facilities and schools are often located near these shops or shopping centres. Many neighbourhoods are named after famous Australians and early settlers or after Aboriginal names. Street names usually follow a particular pattern; for example, streets in Duffy are named after Australian dams, those in Page after biologists and naturalists. Fyshwick, Mitchell and Hume each have a light industry zone. Foreign missions are concentrated in the districts of Yarralumla, Deakin and O'Malley.
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Panorama of Canberra and Lake Burley Griffin, taken from Black Mountain Tower