Question

Explain the orographic rainfall.

Answer 1

• Winds coming from lakes or seas are moisture-laden. They are obstructed by the high mountain ranges coming in their way. 
• They start going upwards along the slope of the mountains. 
• The temperature of these winds drop and condensation occurs and rainfall takes place. Thus because of the obstruction of the mountains, this type of rainfall occurs. 
• The windward side of the mountains gets; more rain; the amount of vapour in the air reduces after crossing the mountain and the moisture-holding capacity of the air increases. 
• The leeward side of the mountain gets lesser rainfall and hence this area is identified as rain- shadow area.