Experts warn of more floods in northern India

Thaindian, via IANS: With over 2.7 million people affected by the floods caused by the change of course of the Kosi river in Bihar, researchers have now warned of more floods in northern India in coming years following changing stream flow patterns in the Himalayan rivers. The researchers from Pune University and College of Military Engineering, Pune, found an increase in the number of ‘high-magnitude flood’ events in four rivers - Chenab, Ravi, Satluj and Beas in northwestern Himalayas in the last four decades.

The researchers analysed the discharge of glacial melt into these rivers and found changing water flow patterns in the river due to global warming. “The high-magnitude events in Himalayan rivers are generally in monsoons; hence they may lead to floods in plains too,” researcher M.R. Bhutiyani, professor at the College of Military Engineering, told IANS.

Bhutiyani said a “high magnitude flood event” is defined as an event when river flow at a particular point exceeds its average value. “The data analysis shows that there was a significant number of high magnitude flood events in the rivers in the last four decades and the frequency of such events has been increasing,” he said.

The researchers found that due to global warming smaller glaciers in the Himalayas have receded at a relatively faster rate than the larger ones. This may ultimately lead to their disappearance in the near future.

View of Himalayan peaks near Kanchenjunga Base Camp, from the Zemathang glacier, shot by Amar, Wikimedia Commons, under the Creative Commons Attribution ShareAlike 2.5 License