Major Drainage Basins
WorldPhysical EnvironmentThe world's drainage basins: land areas where surface water converges to a single point
A map shows major drainage basins depicted as blue dashed lines. Some of the notable basins include Columbia, Colorado in North America; Amazon, Orinoco in South America; Niger in Africa; Danube in Europe; Indus in Asia; and Murray-Darling in Australia.
Major Drainage Basins | Class | Rank | Billion Cubic Feet | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | |
|---|---|---|---|---|---|---|---|---|
| 57.2% | 43.92 | 15.166666666666666 | 4.954545454545454 | 1.4285714285714286 | ||||
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