The proposed methodology quickly highlights oscillations and teleconnections among the records at the decadal and multidecadal scales. (link.springer.com)
On the contrary, when the magnetosphere gets weaker on a multidecadal scale, the mid-latitude aurora forms more likely, and you may see some mid-latitude auroras even during the solar minima as Figure 2 shows. (landscheidt.info)
«The present analysis indicates that the effective heat capacity of the world ocean pertinent to climate change on this multidecadal scale may be taken as 14 + / - 6 W yr m - 2 K - 1. (realclimate.org)