Source: http://www.nature.com/articles/srep45242 . . . the Northern Hemisphere summer have been shown to be associated with the presence of high-amplitude quasi-stationary atmospheric Rossby waves within a particular wavelength range (zonal wavenumber 6–8). The underlying mechanistic relationship involves the phenomenon of quasi-resonant amplification (QRA) of synoptic-scale waves with that wavenumber range becoming trapped within an effective mid-latitude atmospheric waveguide. Recent work suggests an increase in recent decades in the occurrence of QRA-favorable conditions . . . Looks to be an interesting read of an open paper. You can really see these waves in images from: Watch Earth Spin Through a Full Year in This Spectacular Time-Lapse Video Bob Wilson
DARN! It may be possible to predict the solar flux if they are a feedback mechanism. The Russian papers about a solar minimum in the next "n" cycles might have a basis in fact. Bob Wilson
There are several predictions of future sunspot cycles. Most (perhaps all?) so far are based on extrapolation of low-frequency signals in the previous 24 cycles. Which are all we know with useful temporal resolution. So, empirical not mechanistic. Mechanistic is going to be quite a challenge, given that no one yet can explain why the magnetic field reverses so regularly. Or at all. I mean, dang... I've a few things pulled together for a new solar cycle thread here. Sooner or later that will get triggered - either by a new interesting publication or solar event.