Question

Tell me Why.
The eastern slope of the Western Ghats get less rain than the western slope?

Answer 1

The rainfall type prevalent in the western ghats region is the relief rainfall or orographic rainfall. In this type of rainfall, the flow of warm air from one side containing water vapour is obstructed by the hilly or mountainous areas and so to travel across it, the air rises up, and as a result the air cools and clouds are formed which produce rainfall. When the air crosses the hill, the wind becomes dry and has no moisture in it, which results in less or no rainfall on the other side. A similar condition prevails around the Western Ghats, as the air flowing from west to east over the Arabian sea collects the water vapour and as it tries to cross the Western Ghats it condenses and brings rain on the western side. As it crosses the ghats on the eastern side it bring less rain on the eastern side. It is called the lee ward side.