Little Ice Age (LIA)

Little Ice Age (LIA) upsc mind map
  Study of global climatic event (1671-1942)
    Source: PIB
    Challenges traditional perception
    Used pollen-based vegetation data
      Western Ghats (1219-1942)
  Key Findings
    Not uniformly cold and dry
    Significant rainfall variations
    Influence of northeast winter monsoon (NEM)
      Created moist or wet LIA
    Impact of various factors on climate
      Northward movement of Inter Tropical Convergence Zone (ITCZ)
      Positive temperature anomalies
      Increased sunspot numbers
      High solar activity
  Relevance
    Develop paleoclimatic models
    Aid future climate predictions & policy planning
    Understand Indian Summer Monsoon (ISM)
      Variability during the Holocene
  Cause
    Combination of factors
      Cooling from volcanic aerosols
      Low solar activity
        Producing lower surface temperatures

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