Fortnight-long study begins at 6 high-risk glacial lakes in Sikkim – Times of India

Fortnight-long study begins at 6 high-risk glacial lakes in Sikkim – Times of India



NEW DELHI: A fortnight-long research was launched on Saturday to guage the amount, depth and longitudinal profile of six high-risk glacial lakes in Sikkim, based on the officers. Being performed on the behest of the Nationwide Catastrophe Administration Authority (NDMA), the Glacial Lake Susceptibility Evaluation Examine (GLSAS) will assist characterise the bodily dimensions of the lakes utilizing a bathymetry survey, they stated.
The research will carry out a geophysical evaluation of the moraine dam to guage its stability and potential threat elements utilizing an Electrical Resistivity Tomography survey (ERT) and Floor Penetrating Radar (GPR).
The target of this expedition to Mangan district is to conduct an in depth susceptibility evaluation of the high-risk Tenchungkha, Khangchung Chho, Lachen Khangtse, Lachung Khangtse, La Tsho and Shako Chho glacial lakes.
If time permits, a speedy evaluation of some different lakes will even be tried, the officers stated.
The expedition will make a slope stability evaluation of the glacial lake to evaluate mass motion hazards.
Moreover, the research will conduct a morphometric survey of the glacial lake and its adjoining panorama, measure lake discharge and assess the outlet move dynamics to know the lake’s hydrology and use a drone for 3D terrain mapping to construct a high-resolution terrain mannequin, the officers stated.
The excessive sensitivity of glaciers to a altering local weather is resulting in widespread glacier retreat throughout the globe.
Glacial lakes are quickly rising in quantity and space as a direct consequence of this glacier recession.
These lakes pose a big threat of glacial lake outburst floods. These floods could be catastrophic and threaten lives, property, vital infrastructure, and the atmosphere.
Sikkim was impacted by a glacial flood occasion on October 4, 2023, from the South Lhonak Glacial Lake, severely impacting lives, livelihoods, infrastructure and the delicate ecosystem.
The state is but to get better from the catastrophic results of this GLOF because it has crippled the street infrastructure, hydropower improvement and the tourism financial system, the officers stated.
Not like different disasters similar to earthquakes, cyclones, cloudbursts and landslides, GLOF disasters could be prevented.
Decreasing the water quantity in glacial lakes is essential to mitigate the danger of GLOFs, which could be achieved by structural and non-structural measures.
As per the evaluation carried out by the NDMA, there are 189 high-risk glacial lakes in India, of which 40 are in Sikkim alone.
These lakes are positioned in distant, high-altitude areas with advanced topography and frigid local weather.







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