Which risk sharply increases when pyroclastic density current encounters topography?

💡 Explanation

Flow reflection is increased because aerodynamic pressure concentrates at topographic deflectors triggering complex rebound behaviours, therefore resurge initiates with amplified kinetic energy rather than simple flow obstruction that dissipates laterally.

• Which mineral depletion occurs during podzolization due to eluviation?
• Which outcome is caused when coastal upwelling strengthens along the Peru coastline?
• Which consequence results when caldera-forming eruption generates pyroclastic surge?
• Which process amplifies rock fracturing during continental collision?
• During cave stalactite formation, which process accelerates when water evaporates?
• Which mechanism limits biological productivity in stagnant, deep ocean basins cut off from surface circulation?