What is meant by Maden Jullian Oscillation? Discuss its various impacts in the Indian Ocean. (150 Words)
Refer - Deccan Herald
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IAS Parliament 6 years
KEY POINTS
Maden-Jullian-Oscillation is an eastward moving disturbance of clouds, rainfall, winds and pressure, circles the planet along the tropical belt in 30-80 days.
During its global ride, it intensifies and transfers a part of its energy to the underlying ocean.
Impacts in Indian Ocean
· When the MJO winds reach eastern Indian ocean, particularly over northwest Australian basin, MJO’s energy is transferred deep down to the ocean bottom leading to the oscillation of the entire column.
· The oscillation is amplified through interplay of underlying topography and non-uniform density of sea water across the water column.
· The oscillation is further radiated out through fast moving sea waters and eventually invade entire tropical Indian Ocean within some hours.
· These waves carry lot of energy and momentum, rise and fall of the Indian ocean leads to mass exchanges between Indian and Pacific Ocean.
· This further influences the polar motion of earth, length of the day of the earth, accuracy ofGlobal positioning Systems.
· Moreover, MJOs being a low pressure system known to facilitate cyclone formation over Indian Ocean.
Sandeep 6 years
Kindly review thanks
IAS Parliament 6 years
Good answer.Keep Writing.
