उत्तराखंड में 13 संवेदनशील और अति संवेदनशील ग्लेशियर झील मौजूद, इनमें 5 ग्लेशियर झील अति संवेदनशील, वसुधारा ग्लेशियर झील को लेकर चिंताजनक रिपोर्ट
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00:00Basically, Glacier lakes are formed by the retreat of glaciers and by the blockage of
00:22the lateral moraine or middle moraine of the glaciers.
00:26So, the formation and destruction of a glacier lake is a natural process.
00:38When a glacier retreats, a glacier lake is formed and when a glacier advances, the lake
00:42is destroyed.
00:43Similarly, there is a pro-glacier lake, which is considered to be the most dangerous lake
00:46at present.
00:47There are many other lakes.
00:48There is a supra-glacier lake, which is formed above the glaciers.
00:52The lake is formed every year.
00:54The lake is formed and destroyed.
00:56The lake is formed and destroyed.
00:58The lake is formed and destroyed.
01:00These conditions are a natural process.
01:02You cannot deny this natural process.
01:04This lake will always be formed.
01:06It will always be formed and destroyed.
01:08So, it is a process.
01:10Basically, all the lakes that are formed and identified during snowfall are above 4000
01:15meters.
01:17So, above 4000 meters, the maximum temperature in winter is minus.
01:22Maximum lakes are frozen.
01:25So, it is not very dangerous in winter.
01:27But in summer, two things happen.
01:30First, the glacier melts.
01:32Then the snow in winter melts on it.
01:35Along with that, there is a slight rainfall in that region.
01:38Because of this, the lake is full and dangerous.
01:41So, during the rainy season, the lake is more likely to melt than in winter.
01:48There are about 1200 glacial lakes in Uttarakhand.
01:53There are different categories of lakes.
01:55There is a supra-glacier lake, a pro-glacier lake, and a moraine dam lake.
02:00These are the categories of lakes.
02:02These lakes have different numbers in different regions.
02:09The National Disaster Management Authority of India has identified 13 lakes in Uttarakhand.
02:20Out of these, 5 are the super-glacier lakes.
02:23One lake is in the Dhauliganga Basin of Uttarakhand, which is called Basundhara Tal.
02:29It is a very big lake.
02:30The other three lakes are in the Kumaon region.
02:36These lakes are in Kutiyangi Basin and Dharma Basin.
02:39The Wadiyan Institute of Himalayan Geology is also studying some of these lakes on a satellite basis.
02:45Dr. Amit Kumar Walia and his team have gone to different glaciers for physical verification.
02:52They also went to Basundhara Tal.
02:55The Wadiyan Institute has been monitoring Basundhara Tal since 2021.
03:00There is also a lake in the Bhilangana Basin.
03:04All the lakes in Uttarakhand are expanding their area.
03:18Basundhara Tal was studied on a satellite basis in 1968 with the help of IKONOS and CORONA images.
03:30In 1968, the area of these glaciers was 0.14 sq. km.
03:40In 2021, the area of these glaciers has increased by 0.59 sq. km.
03:50The main reason for the increase in the lake is the retreating of the glaciers behind it.
04:02These lakes need to be monitored in the future.
04:06There are many such examples in Sikkim, Lonak Lake, etc.
04:26If you look at the history of these lakes, you will find that there have been gloph events in the past.
04:46Our lakes are completely safe.
04:50Five of our lakes have been classified as sensitive lakes.
04:55We have been told to conduct a study every year.
04:59We were able to conduct a survey of one of the lakes.
05:07Our team has done the study and the report is coming to us.
05:12We will work on the remaining four lakes from next year.
05:15It is not possible to go there at this time.
05:17The glaciers are at a high altitude.
05:19Our team will go there regularly from next year.
05:22We will also go to the expert agencies.
05:25We will see what needs to be done there.
05:28We will also take care of the safety measures.
05:37Basundhara is one of the five districts.
05:40There is one in Pithoragarh, one in Dharma Valley, one in Maban, one in Kuthi and one in Dharma.
05:46These are the five districts.
05:48For now, it has been classified as sensitive.
05:50There is no danger.
05:52The districts are completely safe.
05:54After the study, if there is any disturbance, there is a possibility of damage.
05:59Then we will take the mitigation measures.