Which river has the largest drainage basin in Oceania?. The river with the largest drainage basin in Oceania is Murray–Darling–Culgoa–Balonne–Condamine which receives inflows from a basin area of 1,061,000 square kilometers in Australia and flows out primarily to the Southern Ocean. At second and third, are Warburton–Georgina with a drainage basin of 365,000 km2 and outflows to Lake Eyre, and Flinders River that receives inflows from a basin area of 109,000 km2.
The drainage basins of the major rivers in Oceania span from 84,700 km2 to 1,061,000 km2, with the average basin size being 340,923.4 km2.( A drainage area is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water. )
Here are Oceania's largest rivers by drainage areas.
Murray–Darling–Culgoa–Balonne–Condamine is the longest river in Oceania at 3,672 kilometers (2,282 miles).
Murray–Darling–Culgoa–Balonne–Condamine is a river that stretches 3,672 kilometers (or 2,282 miles) in length, draining from a 1,061,000 km2 basin in Australia.
Its average discharge rate is 767 m3/3 and the river flows out into Southern Ocean.
Murrumbidgee River is the 2nd longest river in Oceania at 1,485 kilometers (923 miles).
Murrumbidgee River is a 1,485-km long (923 miles) river that drains from a 84,917-km2 wide basin in Australia.
Its average discharge rate is 120 m3/3 and the river flows out into Murray River.
Lachlan River is a river that is 1,338 kilometers (or 831 miles) long and drains from a 84,700 km2 drainage basin in Australia.
The average volume of water flow is 49 m3/3 and the river flows out into Murrumbidgee River.
Cooper–Barcoo is the 3rd longest river in Oceania at 1,420 kilometers (882 miles).
Cooper–Barcoo is a 1,420-km long (882 miles) river in Australia.
More on the longest and largest river systems in the world: