Solar-wind-magnetosphere energy influences the interannual variability of the northern-hemispheric winter climate.

ABSTRACT: Solar irradiance has been universally acknowledged to be dominant by quasi-decadal variability, which has been adopted frequently to investigate its effect on climate decadal variability. As one major terrestrial energy source, solar-wind energy flux into Earth's magnetosphere (E_in) exhibits dramatic interannual variation, the effect of which on Earth's climate, however, has not drawn much attention. Based on the E_in estimated by 3D magnetohydrodynamic simulations, we demonstrate a novelty that the annual mean E_in can explain up to 25% total interannual variance of the northern-hemispheric temperature in the subsequent boreal winter. The concurrent anomalous atmospheric circulation resembles the positive phase of Arctic Oscillation/North Atlantic Oscillatio

SUBMITTER: He S 

PROVIDER: S-EPMC8289023 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature