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Low‐latitude volcanic eruption signal in Indian surface air temperatures
Author(s) -
Hingane L. S.,
Kumar K. Rupa,
Patil S. D.
Publication year - 1990
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.3370100705
Subject(s) - climatology , volcano , low latitude , surface air temperature , latitude , vulcanian eruption , geology , atmospheric sciences , environmental science , climate change , seismology , oceanography , geodesy
The effect of major low‐latitude volcanic eruptions on the all‐India mean surface‐air temperature has been studied using data for the period 1899–1985, by using superposed epoch analysis over 36 months before and after the month of eruption. The eruptions are grouped into three categories and their effects on monthly temperatures are presented. In general, there is no evidence of persistent decrease in the mean annual temperature following the eruptions. There is, however, an abrupt and significant surface cooling over India in the first 2 months following northern hemispheric eruptions, with recurrent drops in the next 2–3 years. Southern hemispheric eruptions do not show any effect on the Indian surface temperatures.