TEMPERATURE OF NORTH INDIA, “The Year 2020” is going to be nominated in the “Guinness World Records Book” for all its unprecedented and unusual incidents that are occurring around the world. The one among them is “The Concern Regarding Normal Temperature of North India”. Many of us have been noticing that usually in the month of April – May northern part of Indian Subcontinent faces scorching heat but this year the average temperature that has been recorded so far is around 39°c, very less than the temperature causes by a usual heatwave (47°C) in North India.
Indian Meteorological Department had predicted that summer of the year 2020 will be warmer (0.5°-1°C) than usual weather of the Century but alternatively, many of the north, east and central parts of the country are witnessing incidents of thunderstorms, lightning, heavy rainfall hitherto including Rajasthan, Himachal Pradesh, Uttar-Pradesh, Bihar and Delhi. As per recorded data of IMD there were 354 heavy rainfalls across India in the month of March and April.
Most of the people are happy about that. Noone likes summer and heat after all. They will have also been trying to misinterpret the cause of the whole situation by saying that due to approximately 40 days of continuous lockdown the pollution level reduced which ultimately tends to decrease in temperature. Both the above-mentioned perceptions are merely hallucinations. Neither we should be happy about that nor we should misinterpret its cause.
Let’s find out the reason first!!
As per the ratification of IMD the valid reason behind the normality in temperature of north India is “Western Disturbance”. Western Disturbance is an extratropical cyclone (not originated from tropical or sub-tropical regions) originates in the Mediterranean sea and from there get driven by Westerlies winds and causes heavy rainfall and thunderstorms in the northwestern part of the Indian subcontinent. Usually it is observed in the month of January and February. Department has also highlighted the cause of its occurrence for such longer period—-
▪️ The overall rise in global temperature especially in European countries, results in creating low pressure around the Mediterranean sea and hence the rise and drive of winds by Westerlies towards the Indian Subcontinent.
▪️ Still the average diurnal temperature of European countries is high which is continuously forging western disturbance.
▪️ Another cause is the warm-cool pattern over the Atlantic Ocean.
▪️ The major repercussion of such temperature imbalance will be a disparity in the Monsoonal pattern of India.
Warming of land surface and hence the creation of a low-pressure belt around it, is the major factor for attracting Monsoon from the high-pressure belt of the Indian Ocean which ultimately brings healthy rainfall. Any kind of disturbance will enfeeble our real finance minister i.e Monsoon and hence will impede the rainfall pattern and agriculture-dependent economy at large.
Contingency upon agriculture and availability of inefficient and archaic irrigation facilities makes Monsoon a deciding factor for India’s economic well-being.
India is a country where 61.5% of the population is dependent upon agriculture directly or indirectly for their subsistence and its agriculture, itself dependent upon Monsoon, hence Monsoon is the axis around which agriculture and the Indian economy revolves at large. Any kind of disturbance in Monsoonal patterns will affect the subsistence of 1300 million population which is definitely, not a good omen or matter of celebration at all.