Remote Sensing Studies Reveals That Glaciers are Melting at 5 to 20 metre Rate Annually: India

Remote Sensing Studies Reveals That Glaciers are Melting at 5 to 20 metre Rate Annually: India

New Delhi, Jul 19 (PTI) – Majority of glaciers in India including Gangotri are melting at varying rates ranging from five to 20 metre per year, the government today told the Lok Sabha.

“The studies carried out by ISRO, Wadia Institute of Himalayan Geology (WIGH) Dehradun and other institutions have revealed that majority of the glaciers are retreating (melting) at varying rates from 5-20 metre per year,” Environment Minister Anil Madhav Dave said in a written reply.

He said Gangotri is one of the largest glaciers (30 km long) of Uttarakhand followed by Satopanth glacier (14 km) and both of the glaciers are “retreating” but “not at an alarming rate”.

He said the studies carried out on melting of glaciers by the in-situ measurements as well as remote sensing data indicate that the rate of retreat is “not uniform” for all glaciers.

Giving an example, Dave said Dokriani glacier in Bhagirathi basin is retreating between 15 and 20 metres per year since 1995 whereas Chorabari glacier in the Alaknanda basin is retreating 9-11 metre per year (2003-2014).

He said a study on the length and area changes of 82 glaciers located in the Bhagirathi and Alaknanda river basins has been carried out for a period of 1968-2006 using remote sensing data and the study suggests that glacier area decreased from 599.9 sq km (1968) to 572.5 sq km (2006), implying a net loss of 4.6 per cent of the total area.

However, glaciers in the Alaknanda basin and upper Bhagirathi basin lost 18.4 sq km (5.7 per cent) and 9.0 sq km (3.3 per cent) respectively in a similar period.

“There is no proposal to the government to seek foreign assistance for research on climate change in the Himalayan region,” he said to a question whether the government proposes to seek foreign assistance for research on climate change in the region.

Categories: Remote Sensing

About Author

GIS Resources

GIS Resources is an initiative of Spatial Media and Services Enterprises with the purpose that everyone can enrich their knowledge and develop competitiveness. GIS Resources is a global platform, for latest and high-quality information source for the geospatial industry, brings you the latest insights into the developments in geospatial science and technology.

Write a Comment

Your e-mail address will not be published.
Required fields are marked*

This site uses Akismet to reduce spam. Learn how your comment data is processed.