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LATEST NEWS UPDATES | Ganga drying up in summers due to groundwater depletion: Study

Ganga drying up in summers due to groundwater depletion: Study

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published Published on Aug 22, 2018   modified Modified on Aug 22, 2018
-PTI

‘The decline of groundwater inflow is also impacting the health of the river’

Kolkata:
Ganga, the 2,600-km-long trans-boundary river of Asia, has witnessed “unprecedented low levels of water in several lower reaches” in the last few summer seasons, a study undertaken by a professor of IIT-Kharagpur has said.

The study, published recently in Scientific Reports magazine by Nature Publishing Group, used a combination of satellite images of groundwater levels of Ganga, numerical simulations and chemical analyses to draw the conclusion, a statement issued by IIT-Kharagpur said today.

‘Disastrous effect’

Abhijit Mukherjee, associate professor of Geology in IIT-Kharapur, along with researchers Soumendra Nath Bhanja from Canada and Yoshihide Wada from IIASA Austria, found out that the drying of the river in the recent years during the summer seasons was “possibly related to the groundwater depletion in the Gangetic aquifers”, the statement said. The decline of groundwater inflow (base flow) is also impacting the health of the river, it asserted.

“The present day base flow to the Ganga from the adjoining aquifers may be a third or more of the total river water volume in pre-monsoon months. The base flow might have dipped by 50 per cent from the beginning of irrigation-pumping phase in 1970s,” the statement said quoting Mukherjee.

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The Hindu Business Line, 20 August, 2018, https://www.thehindubusinessline.com/news/science/ganga-drying-up-in-summers-due-to-groundwater-depletion-study/article24736218.ece


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