The Volcanic Signal in Surface Temperature Observations.

  title={The Volcanic Signal in Surface Temperature Observations.},
  author={Alan Robock and Jianping Mao},
  journal={Journal of Climate},
  • A. Robock, J. Mao
  • Published 1 May 1995
  • Environmental Science
  • Journal of Climate
Abstract Climate records of the past 140 years are examined for the impact of major volcanic eruptions on surface temperature. After the low-frequency variations and El Nino/Southern Oscillation signal are removed, it is shown that for 2 years following great volcanic eruptions, the surface cools significantly by 0.1°–0.2°C in the global mean, in each hemisphere, and in the summer in the latitude bands 0°–30°S and 0°–30°N and by 0.3°C in the summer in the latitude band 30°–30°60°N. By contrast… 

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