What are jet streams? Discuss major jet streams which play crucial role in influencing the climate of India. (200 Words)
Refer - The Indian Express
Enrich the answer from other sources, if the question demands.
IAS Parliament 5 years
KEY POINTS
Jet streams are narrow bands of strong winds that flow over thousands of kilometres from west to east. Major jet streams are found near the upper levels of the atmosphere, around 9 to 16 km from the earth’s surface, and can reach speeds of over 320 kph.
Influence of jet streams
· The western cyclonic disturbances which enter the Indian subcontinent from the west and the northwest during the winter months, originate over the Mediterranean Sea and are brought into India by the westerly jet stream.
· Meteorologists have found an interrelationship between the northward shift of the equatorial trough (ITCZ) and the withdrawal of the westerly jet stream from over the North Indian Plain.
· The easterly jet stream steers the tropical depressions into India. These depressions play a significant role in the distribution of monsoon rainfall over the Indian subcontinent. The tracks of these depressions are the areas of highest rainfall in India.
· The frequency at which these depressions visit India, their direction and intensity, all go a long way in determining the rainfall pattern during the southwest monsoon period.
· The easterly jet stream sets in along 15°N latitude only after the western jet stream has withdrawn itself from the region. This easterly jet stream is held responsible for the burst of the monsoon in India.
MURALIDHARAN 5 years
Kindly review
IAS Parliament 5 years
Good attempt. Keep Writing.
HB 5 years
please review
IAS Parliament 5 years
Good attempt. Types not needed. Keep Writing.
Tapasvi 5 years
Kindly review
IAS Parliament 5 years
Good attempt.Try to stick to word limit. A simple definition is enough, no need to explain its types. Keep Writing.
