The 4 outer planets only, have the clout to make solar system changes on big scales in my way of thinking, but leaving the door open re the inner planets
on solar cycle length.
Not exact matches
I thought it would be helpful to have a plot of
solar cycle length superimposed
on this figure — is this available somewhere?
The authors suggested the close correlation between
solar cycle length and temperature supports the direct influence of
solar activity
on climate over the past 130 years.
Alexander's Figure 12 (showing A correlation between temperature and
solar cycle length — rather than amplitude) seemed the key point of the paper,
on which his predictions are based.
Do you have any comment
on the paper by Lassen and Thejll of the Danish Meteorological Institute from observations between Arctic sea ice index and
solar cycle length?
The Hoyt & Schatten reconstruction used by Soon is not based
on ANY measurements of
solar radiation, but
on [dubious] guess work extrapolated from
solar activity proxies: «These indices are (1) the equatorial
solar rotation rate, (2) the sunspot structure, the decay rate of individual sunspots, and the number of sunspots without umbrae, and (3) the
length and decay rate of the sunspot
cycle.»
The planets may have a spin - orbit coupling effect
on the Sun which affects its rotation rate, which would then affect the
solar dynamo and sunspot production, and therefore the build up of magnetic flux at the poles, and the
length of a
solar cycle: if the
solar cycle is weaker with less sunspots, it'll take longer for the build up of opposing flux to reach the point when it flips the poles.
There are minor adjustments that I would now make to that article such as changing the emphasis
on solar effects from the
length of the
solar cycle to changes in the mix of particles and wavelengths affecting stratosphere temperatures as per my later articles.
Before 1998 the consensus was that there was much more variability in past temperatures and very little correlation with CO2
on the other hand temperature did seem to correlate with
solar cycle length.
The HCS tilt angle model depends only
on the
solar cycle phase and describes the cyclic behaviour of the HCS tilt angle, reflecting its asymmetric shape, with short
length and fast ascending phase in contrast to the gradual descending phase.
There are regular
solar minima
on average every ten
solar solar cycles, which vary in
length considerably.
Using a conservative approach, we aim to assess the level and
length of
solar cycle during the MM
on the basis of direct historical records by astronomers of that time.