Coast of Western Australia from the North West Cape to Perth31.9S 115.8E
Western Australia is a state of Australia, occupying the entire western third of the continent. Australia’s largest state and the second largest subnational entity in the world, it has 2.1 million inhabitants (10% of the national total), 85% of whom live in the south-west corner of the state.
Here, the westernmost part of the state is visible from the North West Cape (the peninsula towards the upper left) in the Gascoyne Region to Perth, the state’s capital city. In total, the state has 12,889 km of coastline.
Here, the terrain gradually changes from rusty red and arid to bright green and vegetated. This is because the southern part of the state receives the bulk of rainfall, due to west- to east-moving cold frontal low pressure depressions, originating off the edge of the winter pack-ice in the Southern Ocean, south of South Africa.
Cold southern airflows, wedging beneath humid north westerly winds triggers vertical instabilities, bringing this region the bulk of its rain between May and August.