North east monsoon expected to set by October end. - TNPSC GURU - TNPSC Group 4 2017 Notification 9351 Vacancies - TNPSC

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Wednesday, October 18

North east monsoon expected to set by October end.

TNPSC Current Affairs - October 2017 by TNPSC Guru

According to Chennai meteorology, there will be delay in North east monsoon and will expected to set by October end. This will bring more rainfall to Tamil Nadu, Puducherry, Andhra Pradesh.

About North East Monsoon (October to November)
  • North East monsoon is also known as Post-Monsoon Season" or "Retreating southwest Monsoon Season".
  • Around September South west monsoon begins to retreat from Northern India due to sun moving towards Tropic of Cancer.
  • Due to the shift of Sun to tropic of cancer, land mass of the India loss its heat also fall in temperature which creates high pressure develops.
  • But in seas it still holds a warm condition which causes the low pressure develops in the Bay of Bengal.
  • So dry cold air from land (from Himalayas, Gangetic plain )starts travel towards hot air in sea (because air travels from high pressure to low pressure).
  • Therefore air travels from land to sea doesn’t get much rain due to its dry nature.
  • But when it reaches the sea (Bay of Bengal) it absorbs some moisture and gives heavy rain to Coromandal coast includes, Tamil Nadu, Andhra Pradesh.

Facts:
Kanyakumari is the only district gets benefited with both Southwest and north east monsoon in Tamil Nadu.


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