Abstract:
The attribution analysis of China surface temperature(TC) in the recent 100 years is done from the angle of the astronomical factor(sunspot number, SSN) and the earth movement factor(polar shift
x direction and
y direction) by using Granger causality test. The results are as follows: (1) SSN is not the Granger cause of TC in all of 1 to 11 years lags; (2) when the lag is 6 years, confidence is the highest, at this time polar shift
x direction is the Granger cause of TC (87% confidence); (3) when the lag is 12 years, TC is the Granger cause of the polar shifty direction, the confidence is 86%. The research results of the paper suggest that the change of polar shift
x direction possibly results in the change of TC, and the change of TC possibly influences the change of the polar shiftydirection.