Furthermore, a new index is defined to discuss relative seasonal change of wind at different rotation rates compared to the Earth rotation rate.

Further analyses show the variation of earth rotation rate and sunspot cycle length have important role on the climate abrupt change in the Qinghai-Xizang Plateau.

Since Earth’s rotation rate varies, so would the value of one second when it’s defined as a fraction of the time it takes for one spin of the Earth on its axis.