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DAILY NEWS ANALYSIS

  • 20 February, 2021

  • 4 Min Read

Declining Rainfall in Mawsynram

Why does it rain highest in Mawsynram?

  • Because of the uneven relief of India due to the presence of a number of hill ranges, the monsoon is not able to shed its moisture evenly over India.
  • Windward sides receive more rainfall and leeward sides receive less rainfall.
  • Mawsynram lies in the funnel-shaped depression caused by the Khasi range in Meghalaya.
  • The Bay of Bengal branch of monsoons is trapped in it and causes heavy rainfall.

Decreasing rainfall trends

  • The research analysed daily rain gauges and noted that the changes in the Indian Ocean temperature have a huge effect on the rainfall in the region.
  • There was a reduction in the vegetation area in northeast India in the past two decades, implying that human influence also plays an important role in the changing rainfall patterns.
  • The traditional way of cultivation known as Jhum cultivation or shifting cultivation is now decreased and being replaced by other methods.
  • Also, previous studies have noted there is sizable deforestation in the region.

Source: TH


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