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As a part of the "Weekly Open Thread Discussion With InsightsIAS Team" initiative, we are bringing Sudeep sir to the forum discussions with you. He will address your queries related to Geography and Mains Preparation. We request you to utilize this opportunity to the best.
We heartily welcome Sudeep sir to the Discussions.
Good evening, sir.I have a few subject related doubts.1. Why do winds descend after orographic rainfall ?2. How is loo caused in Indian monsoon ? Is it due to some local pressure gradient ?3. Why are there less cyclones in the Arabian sea ?Thank you.
1. They descend because, they were being pushed up by the mountains (ORO) and because that support ends they descend.
2. Loo is a dust storm not caused during monsoon but caused pre monsoon. Its caused in the Northwest region of India which is semi arid and this part getting intensely heated up during summer causing the dust storm.
3. Because of Several reasons: 1. Less temp that BOB 2. Higher number of Islands in BOB hence differential heating 3. Previous vortices from South China sea coming to BOB