What are the significant changes observed in glacial lakes in Indian Himalayan river basins according to satellite imagery

1. Expansion of glacial lakes: Satellite imagery shows a noticeable increase in the size of glacial lakes in the Indian Himalayan river basins, indicating the melting of glaciers. 2. Formation of new lakes: There has been evidence of new glacial lakes forming as a result of glacier retreat and ice melt. 3. Changes in water levels: Fluctuations in water levels of glacial lakes have been observed, potentially posing the risk of glacial lake outburst floods. 4. Movement of moraines: Satellite imagery also reveals the shifting of moraines around glacial lakes, impacting the stability of these water bodies.