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What is the phenomenon of 'cloudburst'? Explain.

Last Updated on Sep 29, 2024

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This question explains the meteorological phenomenon of cloudbursts, describing their causes, effects, and the regions most prone to experiencing them, especially in the context of sudden and heavy rainfall events.It belongs to General Studies Paper 1: Indian Geography.

Approach:

Introduction: Begin with explaining the concept of a cloudburst.
Body: Elaborate on the characteristics of a cloudburst, the scientific mechanism behind it, and its associated impacts. Provide examples of cloudbursts in India and mention regions that are particularly prone to this phenomenon.
Conclusion: Suggest measures for preparedness and mitigation, and mention the role of technology in predicting cloudbursts.

The phenomenon of a cloudburst refers to an extreme, localized rainfall event that results in an intense downpour within a short span of time, typically less than 100 mm per hour over a small area. This phenomenon occurs when a cumulonimbus cloud, fuelled by moisture and instability in the atmosphere, undergoes rapid growth and collapse.

Characteristics of Cloudbursts

Cloudbursts are typically accompanied by lightning and thunder.

They result in high-intensity rainfall over a very limited area (typically < 20-30 km²).

They occur over hilly and mountainous regions but can also happen in plains.

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Causes and Mechanism

Rapid condensation of warm air as it rises quickly into the atmosphere results in the sudden release of large volumes of water in the form of rain.

Orographic uplift in mountainous areas causes moisture-laden winds to ascend, leading to the rapid cooling and condensation of moisture.

Sometimes, cloudbursts are linked to monsoon winds, especially during periods of unstable weather patterns.

Impacts of Cloudbursts

Flash Floods: The rapid runoff causes flash floods, washing away settlements, infrastructure, and agricultural land.

Landslides: Sudden and heavy rainfall leads to the destabilization of hillsides, resulting in landslides.

Loss of Life and Property: Cloudbursts often occur without warning, leading to fatalities and large-scale damage.

Examples of Cloudbursts in India:

Leh Cloudburst (2010): One of the deadliest, causing landslides and significant loss of life and property.

Uttarakhand (2013 and 2023): A series of cloudbursts worsened the Kedarnath flood disaster in 2013. Multiple districts, including Chamoli and Uttarkashi, were affected during 2023.

Amarnath (2022): Cloudbursts triggered floods near the Amarnath shrine, endangering pilgrims.

Vulnerable Regions

Himalayan regions like Uttarakhand, Himachal Pradesh, and Jammu & Kashmir are highly prone to cloudbursts due to their geography and weather patterns.

Way Forward

Early Warning Systems: Improved technology like Doppler radars can help predict cloudbursts.

Disaster Preparedness: Communities in cloudburst-prone areas should be educated and prepared to mitigate impacts.

Sustainable Development: Restricting construction and deforestation in vulnerable regions can help reduce the damage from such natural events.

Conclusion
Cloudbursts, though rare, have devastating consequences, making it essential to strengthen forecasting capabilities and enhance disaster management strategies in prone regions. In this regard, the Prime Minister’s 10-point agenda on Disaster Risk Reduction (DRR) should be followed, which presents a holistic approach to dealing with such disasters.
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What is the phenomenon of 'cloudburst'? Explain.

IMPORTANT LINKS

Characteristics of Cloudbursts

Cloudbursts are typically accompanied by lightning and thunder.

They result in high-intensity rainfall over a very limited area (typically < 20-30 km²).

They occur over hilly and mountainous regions but can also happen in plains.

Vulnerable Regions

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Latest Update

Coaching

UPSC Current Affairs

Syllabus

UPSC Notes

Previous Year Papers

Mock Tests

UPSC Editorial

Bilateral Ties

Books

Government Schemes

Topics

What is the phenomenon of 'cloudburst'? Explain.

IMPORTANT LINKS

Characteristics of Cloudbursts Cloudbursts are typically accompanied by lightning and thunder. They result in high-intensity rainfall over a very limited area (typically < 20-30 km²). They occur over hilly and mountainous regions but can also happen in plains.

Vulnerable Regions

Characteristics of Cloudbursts

Cloudbursts are typically accompanied by lightning and thunder.

They result in high-intensity rainfall over a very limited area (typically < 20-30 km²).

They occur over hilly and mountainous regions but can also happen in plains.