Which process primarily influences the orientation aspect of cirques located in the Northern Hemisphere?

💡 Explanation

When solar radiation reaches sloping surfaces, aspect dictates energy receipts as southern-facing slopes receive greater insolation, triggering increased ablation of a cirque's glacial ice through increased solar radiation. Therefore, differential melting from sunlight governs cirque orientation, rather than vegetation, insolation period length, or winds, which have secondary geomorphic impacts.

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