Ruqayyah Snyder
Australia is a large land mass with an irregular shape, which makes determining its exact centre difficult. There is no official centre of Australia, but there are several methods for determining possible centres. One method is the linear centre, which is the halfway point of Australia's extreme points. Another is the geodetic median point, which uses a box to shape Australia's extreme points, with diagonal lines from the corners of the box crossing at the geodetic median centre. The Lambert Centre, calculated in 1988, is another method that uses data from 24,500 high-water marks along Australia's coastline to determine the centre. Central Australia, or the Red Centre, is an inexactly defined region associated with the geographic centre of Australia and can refer to an area within 600 km of Alice Springs or any undeveloped region in inland Australia.
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What You'll Learn
The Lambert Centre
The journey to the Lambert Centre is an adventurous one, requiring a sturdy 4x4 vehicle and off-road driving expertise. The site itself holds a scaled-down replica of the flagpole atop the Commonwealth Parliament House in Canberra, along with a plaque commemorating the achievement.
The quest to pinpoint the centre of Australia has captivated explorers and geographers for centuries. Early endeavours, such as Captain Charles Napier Sturt's expedition in 1844-46, were thwarted by the formidable Simpson Desert. John McDouall Stuart, a member of Sturt's party, persisted and in April 1860, he proclaimed to have reached the centre, marking a tree and planting the British flag.
Over time, various methods have been employed to calculate the centre, including the centre-of-gravity approach utilised by Dr. Cecil Madigan in the 1930s. The Lambert Centre, however, stands as the culmination of these efforts, providing a precise geographical reference point for the vast and uniquely shaped continent of Australia.
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Methods for finding the centre
There are several methods that have been used to determine the centre of Australia, a challenging task due to the country's irregular shape and size, as well as the curvature of the Earth.
One method is to find the linear centre, which is the halfway point between Australia's extreme points (Cape York, Cape Byron, South Point, and Steep Point). This method, however, is not as accurate as the geodetic median point method. The geodetic median point method uses a box to shape Australia's extreme points, and diagonal lines from the corners of the box intersect at the geodetic median centre. This method places the centre due west of Alice Springs, at 23 degrees 33 minutes 9.89 seconds south latitude and 133 degrees 23 minutes 46 seconds east longitude.
Another approach is the centre of gravity method, which was used by Dr C.T. Madigan in the 1930s. He employed a metal cut-out of Australia with a plumb bob and string, selecting a point less than 11 kilometres west of the current recognised centre. This method is similar to the idea of balancing a platter on your fingertip to find its gravitational centre.
In 1988, the Royal Geographical Society of Australasia determined the geographical centre of Australia as a Bicentennial project, naming it the Lambert Centre after Dr Bruce Philip Lambert, a former director of the Division of National Mapping. This method used mathematical calculations based on 24,500 to 50,000 digitised points along Australia's coastline, similar to the centre of gravity approach. The result was commemorated with a monument and a plaque.
Additionally, the Johnston Geodetic Station, named after Frederick M. Johnston, was established in 1965 and served as the central reference point for Australian surveys until the adoption of the Geocentric Datum of Australia (GDA). This point was determined using 275 Australia-wide astronomic and geodetic comparisons and is located on Mt Cavenagh Station, NT, south of Kulgera.
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Explorers' attempts to reach the centre
The journey to the heart of Australia has long been a challenge for explorers, with the country's vast and rugged Outback presenting a formidable barrier. The quest to reach the centre of the continent became a fascination for many in the 19th century, with several expeditions setting out to conquer the unknown. One of the earliest attempts was made by Charles Sturt in 1844. Sturt, an English captain in the British Army, had already made a name for himself with successful explorations of the Murray River. He set out with a large team, including Aboriginal guides, hoping to find an inland sea he believed existed. However, the harsh conditions proved too much, and the party was forced to turn back without reaching their goal.
Another notable expedition was led by Robert O'Hara Burke and William John Wills in 1860-61. This time, the explorers were aiming to cross the continent from south to north, and they succeeded in reaching the northern coast. However, their return journey was plagued with misfortune, and both Burke and Wills lost their lives. Their tragic fate highlighted the extreme challenges of exploring Australia's interior.
John McDouall Stuart made multiple attempts to reach the centre of Australia in the 1850s and 1860s. A Scottish explorer, Stuart was known for his meticulous planning and persistence. His expeditions faced extreme heat, drought, and difficult terrain, but he eventually succeeded in reaching the heart of the continent in 1862. Stuart's achievements were recognized, and he is considered one of the most successful explorers of Australia's interior.
One of the most famous expeditions was undertaken by Ernest Giles in 1872-73. Giles, an English explorer, set out with a small team and limited supplies, determined to be the first to cross the continent south to north. His journey was filled with drama, including attacks from Aboriginal Australians who had been displaced by the explorers' presence. Giles also suffered from dysentery and was forced to leave his team at one point to seek help. Despite these challenges, he persevered and eventually reached the center, becoming the first non-Indigenous person to do so.
These early explorers' bravery and determination laid the foundation for our understanding of Australia's geography and opened the way for further exploration and development. Their journeys, though often tragic, remain a testament to human endurance and our innate desire to discover and conquer the unknown.
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The geographic centre of the Northern Territory
The Northern Territory (NT) is an Australian internal territory in the central and central-northern regions of Australia. It is the third-largest Australian federal division and the 11th-largest country subdivision in the world. The NT covers 1,347,791 square kilometres (520,385 sq mi) and is sparsely populated, with a population of only 249,000 as of December 2021. The largest population centre is the capital city of Darwin, with about 52.6% of the Territory's population. The largest inland settlement is Alice Springs, with a population of about 25,000 people.
The Northern Territory has diverse geographical regions, notable bodies of water, and significant river systems. It is home to the two largest deserts in Australia, the Tanami Desert (184,500 km²) in the northern part of the Territory, and the Simpson Desert (176,500 km²) of Central Australia. The Territory also has the natural rock formations of Uluru (Ayers Rock) and Kata Tjuta (Kata Tuja or The Olgas), which are sacred to the local Aboriginal people. These two major landmarks form a part of the Uluru-Kata Tjuta National Park.
The Northern Territory shares its borders with Western Australia to the west, South Australia to the south, and Queensland to the east. To the north, it borders the Timor Sea, the Arafura Sea, and the Gulf of Carpentaria, including Western New Guinea and various other islands of the Indonesian archipelago.
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The Red Centre
Central Australia, also known as the Red Centre, is a region associated with the geographic centre of Australia. The term "Red Centre" is used to refer to a large area in the interior of the continent, including the Lake Eyre Basin, which stretches across three states and the Northern Territory. The region has a desert environment, with extremely low annual rainfall, and is characterised by its red soil.
Historically, explorers such as Charles Sturt and John McDouall Stuart sought to reach the centre of Australia. In 1845, Sturt embarked on an expedition, believing he would find a large body of inland water. Instead, he discovered the Simpson Desert, with its endless sand dunes and extreme temperatures. John McDouall Stuart, a member of Sturt's party, later led his own expeditions and calculated that he had reached the centre of Australia in April 1860, marking a tree and planting the British flag to commemorate the achievement.
The exact geographical centre of Australia has been calculated using various methods, including the gravitational method and geodetic median points. The Lambert Centre, calculated in 1988 by the Royal Geographical Society of Australia, is one of the most well-known methods, named after Dr. Bruce Lambert, a top cartographer. This centre was determined using data from 24,500 high-water marks along Australia's coastline and is commemorated with a monument.
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Frequently asked questions
Central Australia, also known as the Red Centre, is an inexactly defined region associated with the geographic center of Australia. The region is known for its desert environment, receiving on average just 150mm of rainfall annually. The area is largely undeveloped and is often referred to as the Outback.
There are several methods to determine the center of a landmass, and the center of Australia has been calculated using a few different approaches.
One method, similar to the center-of-gravity approach, calculates the center of a land mass as the spot at which the shape, balanced on a single point, manages to balance. Using this method, the Royal Geographical Society of Australasia determined the geographical center of Australia in 1988. The result was 25 degrees 36 minutes 36.4 seconds south latitude, 134 degrees 21 minutes 17.3 seconds east longitude.
Yes, another approach is to draw a box around Australia, connecting the northernmost, easternmost, southernmost, and westernmost points. The halfway point of the diagonal lines connecting the northern and southern corners, and the eastern and western corners, is considered the center. Using this method, the geodetic median point is located due west of Alice Springs, at 23 degrees 33 minutes 9.89 seconds south latitude, 133 degrees 23 minutes 46 seconds east longitude.
Uluru (Ayers Rock) is a well-known natural landmark in Central Australia, although it is not at the exact center of the continent. Other landmarks include the MacDonnell Ranges and Lake Eyre.
