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Australia is a large country, and its size can be hard to estimate on a map. The latitudinal distance from the southern-most point of Australia, South East Cape in Tasmania, to the northernmost point at the tip of Cape York is about 3680 kilometres. The length of the coastline is a different matter, as the precision of the measurement affects the answer. One estimate of the total length of the Australian coastline, including the mainland and islands greater than 12 ha, is 47,070 kilometres.
| Characteristics | Values |
|---|---|
| Distance from the southern-most point of Australia (South East Cape in Tasmania) to the northern-most point (Cape York) | 3680 kilometres |
| Length of the mainland coast plus Tasmania | 30,270 kilometres |
| Length of the coast of islands greater than 12 ha | 16,800 kilometres |
| Grand total of Australia's coastline length | 47,070 kilometres |
| Length of the Australian continent from east to west or north to south | Almost the same |
| Height of the Zuytdorp Cliffs above sea level | 200 metres |
| Length of the Zuytdorp Cliffs | 200 kilometres |
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What You'll Learn
The distance from north to south is about 3680 km
Australia is a large country with a vast expanse of land. The distance from the northern tip of the mainland to the southern tip is about 3680 km. This distance is almost a similar length to that between New York and Butte, Montana, which is 1950 miles or 3139 km. To put it into perspective within the context of Australia, the distance from Sydney to Darwin in the Northern Territory is 1956 miles or 3148 km. That's a long trip!
If you were to travel from the far north of Australia to its southernmost point, you would be crossing through various landscapes and climates. The northern part of Australia is known for its tropical climate and diverse ecosystems, including rainforests and the iconic Great Barrier Reef. As you move southward, the landscape gradually changes, with more temperate climates and diverse flora and fauna.
The southern regions of Australia offer a mix of coastal and mountainous terrain. The famous Great Ocean Road in Victoria showcases the dramatic beauty of the southern coast, with its iconic rock formations and surf beaches. Further inland, you'll find mountain ranges like the Australian Alps, offering winter sports destinations and picturesque alpine villages.
The distance from north to south in Australia is not just a geographical measurement but also a journey through diverse environments and cultural experiences. Along the way, you would encounter different communities, each with their unique heritage and attractions. From the tropical north to the temperate south, Australia's vast expanse provides a diverse range of natural wonders and human experiences.
The length of Australia from north to south is part of what makes this country so unique. It allows for a variety of ecosystems and communities to thrive, each with their distinct character and charm. This vast distance also presents logistical challenges and opportunities for exploration and adventure.
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The coastline paradox
The paradox is based on the way reality is measured and is most relevant when attempting to use those measurements to create models of coasts. The prevailing method of estimating the length of a border (or coastline) was to lay out n equal straight-line segments of length l with dividers on a map or aerial photograph. However, the more you refine your measurement, the longer the measurement, and the more accurate your answer will be. This is because the length of a fractal curve always diverges to infinity, and the area of a surface varies depending on the measurement resolution.
According to English mathematician Lewis Fry Richardson, the length of a coastline can vary depending on the scale of measurement used. This was termed the "Richardson effect". For example, before 1951, Richardson noticed that Portugal reported its measured border with Spain to be 987 km, while Spain reported it as 1,214 km. In 1967, mathematician Benoit Mandelbrot expanded on Richardson's work and later discovered and conceptualized the shape of fractals.
Modern technology, such as LiDAR, Global Positioning Systems, and Geographic Information Systems, has made addressing the paradox much easier. However, critics argue that these problems are more theoretical and not practical considerations for planners. The concept of a coast "line" is a human construct that depends on the assignment of a tidal datum, which is not flat relative to any vertical datum. Thus, any line constructed between land and sea in the intertidal zone is semi-arbitrary and in constant flux.
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The effect of map size on the measurement
The effect of map size and precision on the measurement of Australia's coastline has been a subject of interest. The larger and more detailed the map, and the more precise the measurement, the longer the coastline will appear to be. This is due to the intricate details of the coastline, such as small bays, headlands, and estuaries, which can only be captured with higher precision.
To illustrate this, Dr. Galloway and Ms. Margo Bahr examined the effect of different divider lengths on the measured coastline of Australia. They used 162 maps covering the Australian coast and found that as the divider length increased, the apparent length of the coastline decreased. For example, at a 1000-km intercept, the coastline of the mainland was measured to be 10,830 km. This is a significant difference compared to the measurement obtained using smaller dividers or more detailed maps.
The choice of tools also plays a role in the measurement. Traditional tools such as dividers, a map measuring wheel, or a length of string may not provide consistent and accurate results. For instance, dividers yielded consistent results only when the same starting point was used, while the wheel was rapid but lacked accuracy. Fine wire, on the other hand, laid along the drawn coastline, proved to be surprisingly consistent and accurate, comparable to dividers set to a 0.7 km interval.
The methodology and parameters used for measurement also influence the results. For example, the team had to decide how far up estuaries the coastline would be measured. They agreed to arbitrarily cut off all inlets consistently when their mapped width was less than 1 km. Additionally, mangroves were considered part of the land, and coral reefs were excluded from the measurements. These decisions impact the final measured length of Australia's coastline.
In conclusion, the size and precision of maps, the choice of tools, and the methodology employed all have significant effects on the measurement of Australia's coastline. The intricate nature of coastlines means that measurements can vary widely depending on the level of detail captured, highlighting the importance of consistent and repeatable methodologies when attempting to quantify such complex geographical features.
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The impact of tools used for measurement
The choice of measurement tools can have a notable impact on the accuracy and consistency of results. In the case of measuring Australia's coastline, different tools were considered, including dividers, a map measuring wheel, and a length of string or fine wire. It was discovered that dividers provided consistent results only when using the same starting point, while the wheel was quick but lacked precision. Surprisingly, fine wire, when laid along the drawn coastline, delivered consistent and accurate measurements comparable to those obtained with dividers set to a 0.7 km interval. This highlights how the selection of appropriate tools can enhance the reliability of measurements.
The level of precision in measurements is also influenced by the size and detail of the map used. Larger and more detailed maps tend to yield longer coastline measurements. This phenomenon is known as the coastline paradox, where the length of a fractal curve diverges towards infinity. As a result, the coastline's length increases as the measurement precision improves. This effect was observed when examining the impact of divider lengths on the measured coastline of Australia. As the divider length increased, the apparent length of the mainland coast decreased, shrinking to 10,830 kilometres at a 1,000-km intercept.
The methodology employed in measuring Australia's coastline also plays a crucial role in determining the final figure. To obtain a reliable and repeatable measurement, Dr. Galloway and Ms. Margo Bahr compiled 162 maps of the Australian coast. They established methodologies, such as deciding how far up estuaries the coastline should be measured. By consistently excluding inlets with mapped widths less than 1 kilometre, they determined the total length of the mainland coast, including Tasmania, to be 30,270 kilometres. This figure increased to 47,070 kilometres when the coasts of islands greater than 12 hectares were added.
The impact of measurement tools extends beyond mere numerical values. In the case of Australia's coastline, the choice of tools and methodologies not only affects the measured distance but also influences our understanding of the country's geographical characteristics. For instance, the Zuytdorp Cliffs, a natural feature along the Western Australian coast, stretch for over 200 kilometres. The precision of measurements helps highlight the sheer magnitude of such geographical features and contributes to our appreciation of Australia's diverse terrain.
In summary, the impact of tools used for measurement is evident in the varying estimates of distances across Australia. The choice of measurement tools, the precision of maps, and the employed methodologies all play a crucial role in determining the final figures. The impact extends beyond mere numbers, influencing our understanding and appreciation of Australia's unique geographical characteristics.
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Driving the perimeter of Australia
Australia's perimeter is approximately 25,700 kilometres. Driving the perimeter of Australia is a massive undertaking, and the time it takes varies depending on your driving speed, the number of breaks you take, and the route you take.
The Highway One To Hell team drove a 200 Series Landcruiser around Australia in 5 days, 13 hours, and 43 minutes in 2017, following Highway 1. They stayed on Highway 1 the entire time, including the rough, unsealed section across the gulf country between the Northern Territory and Queensland. However, this route misses a significant portion of the northern coastline.
If you want to take a more leisurely trip and actually get to see some sights, it will take you much longer. One person on Reddit described taking a trip in their 400cc motorcycle, which took them 32 days. They mentioned that they took their time to visit friends and family and see some sites.
If you want to drive the perimeter of Australia, it is recommended to plan your route carefully and consider the time of year. You may want to plan your trip to have perpetual summer by being in the top half of the country from April to September and the bottom half from October to March. It is also important to note that there are sections of Highway 1 that are unsealed and usually pretty rough, so you may want to detour to avoid those sections.
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Frequently asked questions
The latitudinal distance between the southernmost point of Australia, South East Cape in Tasmania, and the northernmost point at the tip of Cape York is about 3680 kilometres.
The length of Australia's coastline depends on the precision with which the measurement is made. One source states that the total length of the mainland coast plus Tasmania is 30,270 km. Adding in the coast length of islands greater than 12 ha brings the total up to 47,070 km.
The time it would take to drive around Australia's coastline depends on how many hours per day you drive and which routes you take. Some people have reported taking 14-15 days, driving 10 hours per day, while others have taken 32 days at a more leisurely pace.
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