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10 cards from this deck
Watercourses starting outside desert boundaries
Rivers in closed basins ending inland in lakes/swamps
Rivers flowing periodically, typically after heavy rain
Ethiopian highlands to Mediterranean Sea via North Africa
Approximately 25 mm
Can deliver 2-3 times the annual average
Extensive shallow floods from overland flow on impermeable land
Steep-sided narrow valleys in deserts
Extremely short lag times
100 mm in Ahaggar & Tibesti regions
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