Great Australian Bight
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The Great Australian Bight is a large oceanic bight, or open bay, off the central and western portions of the southern coastline of mainland Australia.
Coastline of the Great Australian Bight
The Great Australian Bight south of the Nullarbor. Credit Jacques Descloitres, Visible Earth, NASA.
Great Australian Bight Marine Park, 2007
Great Australian Bight 2015
Indian Ocean
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The Indian Ocean is the third-largest of the world's five oceanic divisions, covering 70,560,000 km2 (27,240,000 sq mi) or approx. 20% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by the Southern Ocean, or Antarctica, depending on the definition in use. Along its core, the Indian Ocean has large marginal, or regional seas, such as the Andaman Sea, the Arabian Sea, the Bay of Bengal, and the Laccadive Sea.
The ocean-floor of the Indian Ocean is divided by spreading ridges and crisscrossed by aseismic structures
A composite satellite image centred on the Indian Ocean
During summer, warm continental masses draw moist air from the Indian Ocean hence producing heavy rainfall. The process is reversed during winter, resulting in dry conditions.
Air pollution in South Asia spread over the Bay of Bengal and beyond.