Navy team measures depth of glacial lake in Uttarakhand’s Tapovan

The operation by the naval divers took place at a height of 14,000 feet above the mean sea level.

In a joint operation, an Indian Air Force Advanced Light Helicopter (ALH) winched Navy’s divers to measure the depth of a glacial lake formed upstream of Tapovan in Uttarakhand following the devastating flash flood, the Navy said on Sunday.

At least 65 people were killed and 139 are missing after a glacial disaster in the State’s Chamoli district on February 7. The artificial lake was formed over Rishiganga after the calamity.

The operation by the naval divers took place at a height of 14,000 feet above the mean sea level on Saturday.


“The Naval divers undertook the challenging task of winching down from the helo and recording of depth using a handheld echo sounder (depth measuring equipment) in the near freezing waters. Throughout the evolution, the IAF pilots maintained accurate positioning in the difficult terrain,” the Navy said.

The data will help scientists determine the pressure on the mud wall of the dam. The temporary water body was formed after sediments that the catastrophic flash flood earlier this month brought down, blocking the mouth of a stream that joins the Rishiganga river.

According to the Central Water Commission, the lake is 400 metres in length, 25 metres wide and 60 metres deep.

As the water catchment was not natural, the administration urgently needed to assess ita condition by measuring the depth of water.

“With no road access and time criticality, the Indian Navy diving team were quickly mobilised onboard the IAF ALH,” the Navy said.

You have reached your limit for free articles this month.

Subscription Benefits Include

Today’s Paper

Find mobile-friendly version of articles from the day’s newspaper in one easy-to-read list.

Unlimited Access

Enjoy reading as many articles as you wish without any limitations.

Personalised recommendations

A select list of articles that match your interests and tastes.

Faster pages

Move smoothly between articles as our pages load instantly.


A one-stop-shop for seeing the latest updates, and managing your preferences.


We brief you on the latest and most important developments, three times a day.

Support Quality Journalism.

*Our Digital Subscription plans do not currently include the e-paper, crossword and print.


Source link

Leave a Reply

Your email address will not be published. Required fields are marked *

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