Why does the Arabian Sea branch of the south-west monsoon give heavy rainfall on the Western Ghats?
The Arabian Sea branch carries moisture and strikes the Western Ghats. On rising, the air cools and gives rain.
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The Arabian Sea branch carries moisture and strikes the Western Ghats. On rising, the air cools and gives rain.
View question detailsRain occurs on the windward slope of the Western Ghats and less moisture reaches the eastern side. This is called rain-shadow effect.
View question detailsThe Bengal branch gives rainfall as it moves forward and its moisture decreases. Therefore rainfall may decrease westward.
View question detailsDelay, deficiency or break in monsoon can affect sowing and crop growth. Therefore timely rainfall is very important.
View question detailsNorth-east or retreating winds take moisture from the Bay of Bengal and give rain on Tamil Nadu coast. This is important for the south-eastern coast.
View question detailsThe Himalaya blocks monsoon winds from moving further north and helps their uplift. Therefore it is a major monsoon control.
View question detailsIn summer the pressure system shifts northward and low pressure forms over land. It attracts moisture-laden sea winds.
View question detailsThe Western Ghats and north-eastern hills lift moist monsoon winds. Rising causes condensation and rainfall.
View question detailsThe Arabian Sea branch brings rain to the west coast and Western Ghats. If it weakens these areas may be directly affected.
View question detailsThe Bay of Bengal branch carries moisture and strikes north-eastern hills. This causes very heavy rainfall in Meghalaya region.
View question detailsBoth branches bring moisture through different sea routes and strike different mountains. Therefore rainfall distribution differs.
View question detailsMonsoon rainfall varies by place and time. Therefore planning for storage, irrigation and flood control is necessary.
View question detailsTimely rainfall is needed for sowing kharif crops. Delayed monsoon can affect the agricultural calendar.
View question detailsMonsoon withdrawal occurs in stages and moves region by region. It is called retreating monsoon.
View question detailsDuring retreating monsoon low pressure and cyclonic conditions can form in the Bay of Bengal. They can affect the eastern coast.
View question detailsFor the south-west monsoon, much of Tamil Nadu remains on the leeward side. Therefore it receives more rain from the north-east monsoon.
View question detailsHeavy rainfall can loosen soil and rocks on slopes. Therefore landslide risk increases in hilly areas.
View question detailsLow rainfall reduces storage in reservoirs and can reduce water seeping into the ground. This is a concern for water resources.
View question detailsTotal rainfall may be good, but rainfall at the wrong time or place can affect agriculture and water planning.
View question detailsLow monsoon rainfall can reduce water in fields, reservoirs and groundwater. This creates drought conditions.
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