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Last Updated: Saturday 04 July 2015

  Recent Rainfall Tendency
 
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Source Report on Chief Features of Physiographic rainfall variations across India during instrumental period (1813-2006), Indian Institute of Tropical Meteorology, Pune
 
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Rainfall pattern changed considerably

The average annual rainfall has declined in 68 per cent of India. For the study, researchers divided the country into 15 different geographic regions. Recent trends in these regions follow

Western Himalayas

  • Overall decrease between 1961 and 2006
  • Increase in winter rainfall, summer rainfall
  • Decrease in monsoon, post monsoon

Northern plains

  • Overall decrease between 1999 and 2006
  • Increase between 1944 and 1998
  • Increase in winter rainfall, summer rainfall
  • Decrease in monsoon
  • Post monsoon stationary

Eastern plains

  • Overall increase between 1967 and 2006
  • Decrease in winter rainfall
  • Increase in summer rainfall, monsoon and post monsoon

Indo-Gangetic plains

  • Overall decrease between 1996 and 2006
  • Increase between 1965 and 1995
  • Decrease in winter rainfall, summer, monsoon
  • Post monsoon stationary

North Eastern range

  • Overall increase between 1983 and 2006
  • Decreasing between 1948 and 1982
  • Decrease in winter rainfall, monsoon
  • Increase in summer, post monsoon

Western plains

  • Overall decrease between 1976 and 2006
  • Decrease in winter rainfall, monsoon
  • Increase in summer, post monsoon

Northern Central highland

  • Overall decrease between 1962 and 2006
  • Increase between 1906 and 1961
  • Decrease in winter rainfall, monsoon, post monsoon
  • Increase in summer rainfall

South Central Highlands

  • Overall decrease between 1945 and 2006
  • Increase in winter rainfall, summer, post monsoon
  • Decrease in monsoon

Northern Deccan

  • Overall decrease between 1962 and 2006
  • Increase in winter rainfall, post monsoon,monsoon
  • Decrease in summer

South Deccan

  • Overall decrease between 1957 and 2006
  • Increase in summer, post monsoon and winter rainfall
  • Decrease in monsoon

Eastern plateaus

  • Decrease between 1944 and 2006
  • Decrease in winter rainfall, monsoon
  • Increase in summer, post monsoon

Western hills

  • Overall increase between 1966 and 2006
  • Decrease in winter rainfall,
  • Increase in summer, monsoon
  • Post monsoon stationary

Eastern Hills

  • Overall increase between 1981 and 2006
  • Increase in winter rainfall, post monsoon
  • Stationary in summer
  • Decrease in monsoon

West coastal plains

  • Overall decrease between 1962 and 2006
  • Decrease in winter rainfall, summer, monsoon
  • Increase in post monsoon

East coastal plains

  • Overall increase between 1866 and 2006
  • Increase in winter rainfall, summer, monsoon increasing, post monsoon

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