Dr Michele Casati is familiar to many Talkshop readers as an occassional contributor and for his blog.
A new study is being presented at EGU General Assembly 2015, held 12April – 15April, 2015 in Vienna, Austria
Relationship between major geophysical events and the planetary magnetic Ap index, from 1844 to the present
In this study, for the first time, we compared the annual magnetic Ap index, taken from original sources, from 1844 to the present day [Svalgaard,2014], with:
i) sixteen large volcanic eruptions of index VEI5 + recorded by, Smithsonian Institute (Global Volcanism Program), ii) three sets of the volcanic aerosols data [Ammann et.al,2003][Gao;Chaochao;Alan Robock;Caspar Ammann, 2008][Traufetter et.al,2004] and iii) eight major earthquakes of a magnitude between 8.7<M<9.5, which occurred from 1900 to the present.