Case Study → Regimes in contrasting river basins (Yukon & Amazon) (Edexcel A-Level Geography): Revision Notes

Case Study → Regimes in contrasting river basins (Yukon & Amazon)

Regimes in contrasting river basins (Yukon & Amazon)

Amazon	High flow: Wetter season Low/no flow: Drier season Seasonal variability: 🔗 Moderate variability • fed by Andean rivers outside rainforest region Human influences: 🔗 Increasing, large dams used by Brazil's major cities for irrigation and HEP Major influences Rainforest climate Seasonal precipitation EVT very high
Yukon	High flow: Spring and summer (snowmelt) Low/no flow: Winter (when precipitation is frozen) Seasonal variability: High Human influences: 🔗 Relatively few • most of its landscape is wilderness Major influences Higher summer temperatures, rainfall and snowmelt all occur at once