Governments urged to monitor silt accumulation to prevent Himalayan disasters
A recent disaster in Uttarkashi, Uttarakhand, caused by heavy rainfall and a cloudburst-like event, highlights the persistent risk of destabilization in the Himalayas. The article criticizes state authorities' tendency to label such events as 'cloudbursts' to claim helplessness, noting the India Meteorological Department's (IMD) specific definition of 10 cm of rain in an hour over 10 sq km, which is difficult to compute at high altitudes. It suggests that continuous heavy rain loosens soil, leading to large volumes of silt and water. Climate change increases extreme rainfall events, making infrastructure projects in hills vulnerable. Governments must review debris and silt accumulation to mitigate future climate change impacts.
Key Points
- The Uttarkashi disaster underscores the persistent risk of destabilization in the Himalayas due to extreme weather events.
- The article criticizes the simplistic categorization of such events as 'cloudbursts' by authorities, which can lead to claims of helplessness.
- It highlights that continuous heavy rainfall, loosened soil, and accumulated silt contribute to the severity of these disasters.
- Climate change is increasing the probability of extreme rainfall, making existing infrastructure projects in hilly regions vulnerable.
- Governments are urged to monitor and manage debris and silt accumulation to mitigate future climate change impacts.
Exam Facts
- The disaster occurred in Uttarkashi district of Uttarakhand.
- The India Meteorological Department (IMD) defines a cloudburst as 10 cm of rain in an hour over 10 square kilometres.
- The event involved the Kheer Ganga river.
- The article mentions the impact of climate change on extreme rainfall events.
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