Cloudbursts are causing chaos in parts of India and Pakistan. Here’s what they are
Islamabad (AP) – Cloud explosions cause chaos in the mountainous regions of India and Pakistan, and a tremendous amount of rain falls in a concentrated area. . Intense, sudden evacuation proved to be deadly In both countries.
About 300 people died In a northwest Pakistan region, Bunner, after a cloud explosion. The strength and volume of the rain triggered the flash flood, landslides and mud flows. Rocks from the steep slopes collapsed with water to straighten the houses and reduce the villages to rubble.
. Uttarakhand of North India At the beginning of this month there was a cloud explosion. Local TV showed that the floods went down from a mountain and hit Dharali, a Himalayan village. In 2013, more than 6,000 people died and 4,500 villages were affected when a similar cloud explosion hit the state.
What you need to know about cloud explosions:
Complex and extreme weather events
A cloud explosion occurs when a large rain volume decreases in a very short time, usually from a localized area, when it falls more than 100 millimeters (about 4 inches) in approximately 30 kilometers (11.6 miles).
Cloud explosions are sudden and severe, with destructive results and widespread destruction and may be equivalent to normal rainfall or longer. The activity is the explosion of a cloud and its content is discharged like a rain bomb.
Hot, humid air contributes to a cloud explosion, including high moisture, low pressure, imbalance and convective cloud formation.
After encountering a hill or mountain, moist air is forced to rise. This rising air cools down and concentrates. Clouds with large, dense and heavy rainfall form.
Hills or mountains act like barriers and often capture these clouds, so they cannot easily scatter or move. Strong current currents, delay the oils and hold the moisture in the clouds.
When the clouds can no longer keep the accumulated moisture, they explode and release them all at once.
India and Pakistan have ideal conditions
Cloud explosions develop in moisture, monsoons and mountains. The regions of India and Pakistan have three, which makes them vulnerable to these extreme weather events.
Himalayalar, Karakoram and Hindu Kush mountain ranges are home to the world’s highest and most famous summits, including many countries, including India and Pakistan.
The frequency of cloud explosions in these two South Asian countries increases continuously due to the heating atmosphere, because a warmer air mass can hold more moisture and create conditions for sudden and intense torrential rainfall.
In the South Asian region, there were traditionally two monsoon season. One typically lasted from June to September, and the rains move to the southwest northeast. The other moves in the opposite direction from roughly October to December.
However, with more planetary gas in the air, the rain is now loosely following this pattern.
This is because the warmer air is able to keep more moisture than the Arab Sea and the Indian Ocean, and the rain tends to be thrown at once. It means that the monotheism is ended with intense floods and dry spells rather than continuous rain.
The combination of moisture, mountains and monsoons triggers sudden condensation and cloud explosions by forcing these moisture -loaded winds upwards.
Difficult to imagine, but the precaution is possible
It is difficult to predict cloud explosions due to their dimensions, durations, instantity and complex atmospheric mechanisms.
Asfandyar Khan Khattak, a Pakistani official from the northwestern province of Khyber Pakhtunkhwa, said that there is no “estimation system anywhere in the world to predict the full time and location of a cloud explosion.
The Pakistani government said that after a cloud explosion, there was an early warning system in the bunner area where hundreds of people died, the downside was so sudden and intense, and that the residents hit before warned.
The social organization Sost, the name of a border village in North Gilgit-Baltistan, Pakistan, says that measures are possible.
He advises people to avoid building houses right next to rivers and valleys, travel to rugged areas, keep the emergency kit ready, and avoid traveling on mountainous roads during the night.
Reduces surface flow and increases water absorption and afforestation to regularly clean and expand the river coast and drainage channels.
Climate change fuel the frequency
Experts say that cloud explosions have increased in recent years due to climate change, and that the damage caused by associated storms has increased due to unplanned development in the mountain regions.
Climate change directly strengthened the triggers of cloud explosives in Pakistan. Each increase of 1 ° C increases the potential of heavy rainfall in short explosions by allowing the air to keep about 7% more moisture.
The heating of the Indian Ocean and the Arab Sea pushes more moisture to the atmosphere. It changes local weather conditions by making melting glaciers and snowfall events more irregular and excessive. Environmental deterioration in the form of forestization and loss of wetlands reduces the ability of the land to suck water and enlarges flash floods.
Climate change was a central driving force in the destruction in the northern regions of Pakistan.
Khalid Khan, a former special secretary for climate change in Pakistan, said, “Rising global temperatures have charged the hydrological cycle super, led to more intense and irregular rainfall,” he said.
“In our northern regions, heating accelerates glacier melting, adds excessive moisture to the atmosphere and destroyed the mountain slopes. In short, climate change makes rare events more frequently and more devastating.”
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Associated Press writers Munir Ahmed and Riaz Khan, Islamabad and Peshawar, respectively, contributed to this report of Pakistan.
