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For the reason that ‘Yellow Alert’ has been issued, but, in Bengaluru, residents are trying to find solutions on the causes of the extreme floods this yr. One such lecturer is by Arun Pai, founding father of Bangalore Stroll.
In a sequence of movies posted on the Bangalore Stroll YouTube channel, titled ‘Floodsplenning’, Arun Pai delved deeper into questions on the causes of floods. He makes no worth judgments and focuses on the scientific causes of the good floods.
His movies are based mostly on his intensive analysis, which incorporates speaking to specialists, studying up on the subject and gaining insights by bike and strolling throughout the Bengaluru Tank Community and the grounds of Mahadevapura. He says that he’s not an professional, however is trying to perceive the completely different facets of the state of affairs with curiosity and his love for Bengaluru.
Why does the gradient matter
civil Affairs, in earlier articles, has summarized and republished the primary three episodes of Arun Pai’s video. Within the fourth episode, titled ‘Gradient Issues’. How steep is your slide?’ Arun Pai, with the assistance of a topographical map, trivia, historic occasions and humor, highlights why you will need to perceive why town floods after heavy rains.
Learn extra: How open information, waste water reuse and different measures can forestall floods in Bengaluru
topography of bangalore
Not like Chennai, Delhi, Mumbai and Kolkata, Bengaluru is just not a flat metropolis. It has an undulating topography and the slope varies tremendously throughout town. The gradient is necessary as a result of it impacts the pace at which the water strikes downward.
Arun Pai suggests an app to the viewers referred to as topographic-map.com (One may do a Google search of ‘Bengaluru topographic map’ to seek out the app. It reveals that if you click on anyplace within the map So how is the peak above sea degree displayed).
rain water stream
The meme of how Bengaluru become a large waterpark after heavy rains has been turned on its head by Arun Pai. He does this to think about, as an analogy from the viewers, town as a large waterpark with many excessive factors and the way all of the water slides ultimately find yourself in a big pool of water. He then observes how the rainwater flows from varied factors: ITPL, Tin Manufacturing unit, Silk Board and Domlur, into Varthur Tank.
learn extra, Rainbow Drive – Format or Lake? Man-made tragedy of flood susceptible areas of Bengaluru
a feat of human engineering
Tanks had been constructed to seize rain water in order that it may very well be used for irrigation. Arun Pai says that the historical past of Bengaluru consists of the achievement of human engineering. It’s a part of one of many oldest and most refined rainwater harvesting methods on the planet, a undeniable fact that shouldn’t be misplaced in time and must be remembered and understood particularly within the current instances.
Watch the complete video right here:
Episode 4 of the floodsplaining sequence. Video: Bangalore Walks
[The video has been republished with permission]
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