Which consequence results when substantial airborne tephra reaches altitudes above freezing?

💡 Explanation

Glacial mass balance gain occurs because tephra deposition darkens the ice surfaces, promoting radiative energy absorption and melting. Refreezing at altitude through regelation offsets surface ablation, therefore, a slight gain; rather than, reducing river flow, which would need much ash.

• Which feedback occurs when coastal upwelling of nutrient-rich water causes a phytoplankton bloom that decreases surface albedo?
• Which mechanism causes stream channel sinuosity in meandering river systems despite continuous downslope flow?
• Which outcome results from high sediment input and reduced streamflow into a lake?
• Which outcome occurs when a river's **sinuosity** is extremely high?
• Which risk increases along riverbanks composed of unconsolidated silty alluvial deposits?
• Which ventifact outcome intensifies when desert pavement subsides?