When prevailing winds push a moist air mass toward a coastal mountain range, orographic lifting alters the thermodynamic properties of the air as it crosses the terrain. Arrange the stages of this atmospheric process in sequential order from the initial approach to the formation of a rain shadow.
- 1Prevailing winds push a warm, moist air mass against the windward side of the mountain, forcing the air to rise.
- 2The ascending air expands under lower atmospheric pressure and cools adiabatically until it reaches its dew point.
- 3Water vapor condenses onto cloud condensation nuclei, producing persistent cloud cover and precipitation on the windward slope.
- 4The dehydrated air crests the summit and descends the leeward slope, warming by adiabatic compression to form an arid zone.
Cevap
The correct sequence begins with the mechanical uplift of moist air on the windward slope, followed by adiabatic cooling to saturation, cloud condensation and precipitation on the ascent, and finally adiabatic warming of dry descending air on the leeward slope.
Orographic precipitation follows a strict thermodynamic progression: mechanical lifting forces air upward, which cools adiabatically to saturation, producing condensation and rain on the windward side. Once depleted of moisture, the descending air on the leeward side undergoes adiabatic compression, warming rapidly and creating a dry rain shadow.
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Orographic Lifting and the Rain Shadow Effect
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