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The government of Sikkim declared the flood a disaster, and the Indian central government released ₹48 crore ($5.76 million) in disaster relief funds. [a] [10] [13] Additionally, the state government announced an ex-gratia compensation of ₹4 lakh ($4804) to the families of those who died, as well as an immediate payment of ₹2,000 ($24) to those in relief camps. [14]
A proglacial lake at the head of the glacier burst through a glacial dam, and water from the lake carved a trench down the center of the glacier for more than 0.8 kilometres (0.5 mi). An estimated 2,460,000 cubic metres (650,000,000 US gal) of water were released in four days, raising the flow level of Dinwoody Creek from 5.66 cubic metres (200 ...
The lake's area was also traced using MSS data and the glacier's retreat. The lake had an area of 17.54 hectares in 1977 and was connected to the glacier terminal. Later, the lake's areal extent was determined using 1989, 2002, and 2008 temporal satellite data. [7] Between 1977 and 2008, the lake's surface area rose by 81.1 hectares. [7]
The glacier blocks the river, which backs up into a proglacial lake, which eventually overflows or undermines the ice dam, suddenly releasing the impounded water in a glacial lake outburst flood also known by its Icelandic name a jökulhlaup. Some of the largest glacial floods in North American history were from Lake Agassiz. [3]
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The area which will see the greatest increase in lake formation is the Southern Tibetan Plateau region from debris covered glaciers. [3] This increase in glacial lake formation also indicates an increase in occurrence of glacial lake outburst flood events caused by damming and subsequent breaking of moraine and ice.
Waters of a glacial lake breached a hydroelectric dam in the Indian Himalayan region on Wednesday, 4 October, triggering deadly flooding which has killed at least 40 people according to officials.