Which outcome results when a glacial lake outburst nears catastrophic draining?

💡 Explanation

Downstream abrasion increases because a rapid outburst flood leads to vastly increased sediment load and flow velocity; the heightened abrasive action occurs through the mechanism of hydraulic erosion/abrasion. Therefore abrasion increases, rather than any changes to isostasy or chemical weathering, which are much slower.

• Which process sharply restricts nutrient availability specifically within deep fjord basins?
• Which consequence results when groundwater lowers in wetlands?
• Which process dominates sediment mixing within manganese nodule-rich abyssal plains?
• Which pressure distribution does the coastal rain shadow effect require to form?
• Which process leads to the formation of braided streams on the surface of an alluvial fan?
• Which risk increases when glacial meltwater disrupts North Atlantic circulation?