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 ecosystem collapse mechanism occurs in coastal South America during a strong El Niño event?
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• Which triggers rapid sinkhole formation above limestone bedrock?
• Which outcome results when persistent high pressure blocks atmospheric rivers?
• Which horizon development occurs as clay minerals migrate?