Environmentalists alarmed as Himachal witnesses shift in snowfall patterns
- July 28, 2024
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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Environmentalists alarmed as Himachal witnesses shift in snowfall patterns
Sub: Geo
Sec: Climatology
Context:
- Himachal Pradesh is experiencing a reduction in snow cover and a shift in snowfall patterns from winter to early summer, raising concerns about climate variability in the Himalayas.
- The decrease in snow during peak winter months (December and January) could affect summer water availability, as winter snow sustains river discharge.
Study Findings on Snow Cover:
- A study by the Centre on Climate Change of Himachal Pradesh Council for Science Technology-Environment (HIMCOSTE) shows a 12.72% decrease in snow-covered areas across major river basins (Satluj, Ravi, Chenab, and Beas) in 2023-24 compared to 2022-23.
- Early winter months (October-November) saw a decrease in snow cover, except for a slight increase in the Ravi basin. The peak winter months (December-January) showed a negative trend, with the worst affected being January.
- However, February and March saw an increase in snow cover in all basins, and April experienced fresh snowfall, increasing the snow-covered area.
Concerns and Implications:
- The late snowfall extending into April may not be beneficial, as rising temperatures could accelerate melting, affecting river discharge during peak summer.
- Environmentalists and scientists note a worrying trend of reduced snowfall in peak winter months and a shift toward late winter or early summer, impacting hydropower, water sources, and ecosystems.
Source: TH