NEW DELHI:A big 55 per cent of tehsils or sub-districts throughout the nation have recorded an over 10 per cent enhance within the southwest monsoon rainfall within the final decade spanning from 2012 to 2022 as a result of local weather change, based on a brand new examine launched on Wednesday. Impartial think-tank ‘The Council on Vitality, Atmosphere and Water (CEEW)’, which analysed 40-year rainfall information for greater than 4,500 tehsils throughout India, additionally discovered that 11 per cent of the sub-districts noticed a discount within the southwest monsoon rainfall within the final decade.
The tehsils that recorded poor rain are situated within the rain-fed Indo-Gangetic plains, northeast India and the higher Himalayan area.
These areas are essential for India’s agricultural output and comprise fragile ecosystems notably weak to excessive local weather occasions.
Of those tehsils, round 68 per cent skilled rainfall discount in all months from June to September, whereas 87 per cent confirmed a decline in the course of the preliminary monsoon months of June and July, that are essential for the sowing of kharif crops.
Almost 1 / 4 of the tehsils studied in historically drier areas akin to Rajasthan, Gujarat, central Maharashtra, and components of Tamil Nadu noticed a pronounced rainfall enhance of over 30 per cent in the course of the June to September interval.
The researchers stated 48 per cent tehsils in India noticed a greater than 10 per cent enhance in rainfall in October, which may very well be as a result of delayed withdrawal of the southwest monsoon from the subcontinent.
The examine titled “Decoding India’s Altering Monsoon Patterns” attributes the shift in rainfall patterns to the accelerating fee of local weather change. It additionally discovered that the elevated precipitation in these tehsils is the results of frequent short-duration, heavy rainfall occasions which frequently result in flash floods.
As an illustration, 31 per cent of the tehsils skilled a rise of 4 or extra days of heavy rainfall per 12 months within the final decade (in comparison with the earlier 30 years) in the course of the southwest monsoon.
The monsoons are essential for India’s agricultural panorama, with 52 per cent of the web cultivated space counting on it. It is usually essential for the replenishing of reservoirs essential for consuming water aside from energy era throughout the nation.
Vishwas Chitale, senior programme lead at CEEW, stated, “The monsoons impression the meals we eat, the water we drink and likewise our power transition.”
“CEEW’s examine not solely maps monsoon variability — each southwest and northeast — over the previous 40 years throughout India but additionally supplies brazenly accessible tehsil-level rainfall info for decision-makers to evaluate dangers on the native degree.
“With rising excessive climate occasions, hyper-local local weather danger assessments and motion plans are the best way to go for India to maintain main in local weather motion and catastrophe danger discount. This may assist save lives, livelihoods and infrastructure,” he stated.
The examine additionally discovered that the rise in rainfall is just not properly distributed all through the seasons and months.
Out of the overall tehsils that noticed a lower in southwest monsoon, 87 per cent of them, situated in states akin to Bihar, Uttarakhand, Assam, and Meghalaya, noticed a decline in rainfall in the course of the preliminary monsoon months of June and July, that are essential for sowing kharif crops.
Alternatively, 48 per cent of tehsils in India noticed a rise in October rainfall by greater than 10 per cent, which may very well be as a result of delayed withdrawal of the southwest monsoon from the subcontinent.
This has direct implications for the sowing of rabi crops throughout this time.
The examine additionally reveals altering patterns within the northeast monsoon — from October to December — which is especially essential for peninsular India.
The northeast monsoon rainfall has elevated by greater than 10 per cent within the final decade in round 80 per cent of tehsils in Tamil Nadu, 44 per cent in Telangana, and 39 per cent in Andhra Pradesh.
Odisha and West Bengal on the East Coast and Maharashtra and Goa on the West Coast have seen a rise in rainfall throughout this era.
The tehsils that recorded poor rain are situated within the rain-fed Indo-Gangetic plains, northeast India and the higher Himalayan area.
These areas are essential for India’s agricultural output and comprise fragile ecosystems notably weak to excessive local weather occasions.
Of those tehsils, round 68 per cent skilled rainfall discount in all months from June to September, whereas 87 per cent confirmed a decline in the course of the preliminary monsoon months of June and July, that are essential for the sowing of kharif crops.
Almost 1 / 4 of the tehsils studied in historically drier areas akin to Rajasthan, Gujarat, central Maharashtra, and components of Tamil Nadu noticed a pronounced rainfall enhance of over 30 per cent in the course of the June to September interval.
The researchers stated 48 per cent tehsils in India noticed a greater than 10 per cent enhance in rainfall in October, which may very well be as a result of delayed withdrawal of the southwest monsoon from the subcontinent.
The examine titled “Decoding India’s Altering Monsoon Patterns” attributes the shift in rainfall patterns to the accelerating fee of local weather change. It additionally discovered that the elevated precipitation in these tehsils is the results of frequent short-duration, heavy rainfall occasions which frequently result in flash floods.
As an illustration, 31 per cent of the tehsils skilled a rise of 4 or extra days of heavy rainfall per 12 months within the final decade (in comparison with the earlier 30 years) in the course of the southwest monsoon.
The monsoons are essential for India’s agricultural panorama, with 52 per cent of the web cultivated space counting on it. It is usually essential for the replenishing of reservoirs essential for consuming water aside from energy era throughout the nation.
Vishwas Chitale, senior programme lead at CEEW, stated, “The monsoons impression the meals we eat, the water we drink and likewise our power transition.”
“CEEW’s examine not solely maps monsoon variability — each southwest and northeast — over the previous 40 years throughout India but additionally supplies brazenly accessible tehsil-level rainfall info for decision-makers to evaluate dangers on the native degree.
“With rising excessive climate occasions, hyper-local local weather danger assessments and motion plans are the best way to go for India to maintain main in local weather motion and catastrophe danger discount. This may assist save lives, livelihoods and infrastructure,” he stated.
The examine additionally discovered that the rise in rainfall is just not properly distributed all through the seasons and months.
Out of the overall tehsils that noticed a lower in southwest monsoon, 87 per cent of them, situated in states akin to Bihar, Uttarakhand, Assam, and Meghalaya, noticed a decline in rainfall in the course of the preliminary monsoon months of June and July, that are essential for sowing kharif crops.
Alternatively, 48 per cent of tehsils in India noticed a rise in October rainfall by greater than 10 per cent, which may very well be as a result of delayed withdrawal of the southwest monsoon from the subcontinent.
This has direct implications for the sowing of rabi crops throughout this time.
The examine additionally reveals altering patterns within the northeast monsoon — from October to December — which is especially essential for peninsular India.
The northeast monsoon rainfall has elevated by greater than 10 per cent within the final decade in round 80 per cent of tehsils in Tamil Nadu, 44 per cent in Telangana, and 39 per cent in Andhra Pradesh.
Odisha and West Bengal on the East Coast and Maharashtra and Goa on the West Coast have seen a rise in rainfall throughout this era.
