Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich dynamic is caused when polar air descends?
A)Hadley cell circulation subsidence✓
B)Ferrel cell enhanced vorticity
C)Rossby wave extreme amplification
D)Eckman transport directional reversal
💡 Explanation
Polar air cools and descends, initiating Hadley cell circulation. This causes subsidence: air compresses and warms, inhibiting cloud formation and precipitation, because pressure increases with depth; therefore subsidence, rather than amplification, dominates in this dry stable weather.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Geography →- Which geological change results from differential weathering rates?
- Which flow pattern change results from the Coriolis effect on deep ocean thermohaline circulation?
- Which modification to the Walker circulation in the Pacific Ocean initiates an El Niño event?
- Which process creates natural levees alongside a river experiencing meander cut-off, where an oxbow lake forms?
- Which mechanism causes increased mass wasting along coastlines featuring sea stacks?
- Which mechanism causes uplift when strike-slip fault experiences restraining bend?
