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UPSC Indian Geography 08 - Monsoon Theories

This Post and the attached video will explain the following points of Micro-Notes on UPSC Indian Geography 08 - Monsoon Theories. Copy & Note it down carefully, as it will be very useful for the Fast Revision of the entire topic of "UPSC Indian Geography 08 - Monsoon Theories".

UPSC Indian Geography 08 - Monsoon Theories

Halley Thermal Concept
  • Halley hypothesized that monsoons is the extended land breeze and sea Breeze

Aerological Concept
  • By Scherbag 1948 - German
  • changes in the direction of winds at all levels in the atmosphere 
  • a distinct monsoonal circulation exists in upper atmosphere at an altitude of about 21 km

Dynamic Concept
  • By Flohnn
  • ITC Moves up

Tibet & Easterly Jet
  • Tibet & easterly Jet-Heating of Tibet- strengthening monsoon, 
  • Westerly jet, 
  • Somali Jet-cold

Indian Ocean Dipole
  • Difference in sea surface temperature between Arabian Sea (western Indian Ocean) and an eastern pole in the eastern Indian Ocean south of Indonesia.
  • Positive IOD winds over the Indian Ocean blow from east to west (from Bay of Bengal towards Arabian Sea).-Indian Ocean near Africa Coast being much warmer and eastern Indian Ocean around Indonesia becoming colder and dry.
  • negative dipole year, reverse happens 
  • Positive IOD is good for Indian Monsoons

El-Nino, El-Niño Modoki & La-Nina
  • El Nino-unusual warming of surface waters in the eastern tropical Pacific Ocean, Trade winds coming from South America normally blow westward towards Asia during Southwest Monsoon. Aks  El Niño-Southern Oscillation cycle (ENSO). Warming of the Pacific Ocean results in weakening of these winds
  • El Nino Modoki
  • La Nina- piling up of cold water near the West Coast of South America - results in strong monsoon











** Above Video is created by KapsOne Studies and Placement Center, Nagpur for Guidance of UPSC Civil Service (IAS /IPS / IFS / IRS / SSC / Railways / NDA), MPSC Rajyaseva, UPPSC, MPPSC, BPSC, RPSC, NCERT Aspirants on  topic UPSC Indian Geography 08 - Monsoon Theories.


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