2nd August 2024 (11 Topics)
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Cloudbursts
Cloudbursts hit various locations in Himachal Pradesh and Uttarakhand, leading to casualties.
What is Cloudburst?
- A cloudburst is a sudden, intense localised rainfall where more than 100 millimetres of rain falls in an hour, often causing flash floods.
- The phenomenon responsible is called ‘orographic lift’. Warm air currents push rain-ready clouds upwards. As they rise, water droplets grow larger and new ones form.
- These dense clouds eventually burst, releasing torrential rain over a small area. This can quickly cause water bodies to overflow.
- Cloudbursts are more common in mountainous regions because the terrain causes moisture-laden air to rise quickly along mountain slopes.
- Prediction: A doppler-radar system is ideal for predicting cloudbursts. After the 2013 calamity, there were calls to equip monitoring stations in cloudburst-prone areas with this technology.
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