Soon and Baliunas on the sun and water vapour

Chapter 11 of Climate Change: The Facts 2017 comes from Wei-Hock (Willie) Soon and Sallie Balliunas. Both have experienced some of the drama that comes from falling out with the orthodoxy. Sallie Baliunas was involved in one of the major controversies in the field when she co-authored a paper that concluded “The 20th century is probably not the warmest nor a uniquely extreme climatic period of the last millennium”. In the ensuing fuss five of the editors of the journal resigned although there were no demonstrable errors in the paper and it was not retracted.

This chapter introduces the history of modern ideas about the relationship of the sun and climate with some new evidence connecting total solar irradiance (TSI) with a number of indicators of temperature at various places around the world. This work used as much as possible “natural” temperatures without the contamination of the urban heat island effect. They also explore the correlation of TSI with atmospheric water vapour.

Early work. Some of the early work on sunspot activity and climate is captivating, such as the observations of the Jesuit astronomer Giovani Battista Riccioli and a Mexican Antonio Alzate, both in the in the seventeenth century, the speculations of William Herschel (1738-1822) and Thomas Jefferson (1743-1826) and the more recent the work Annie and Walter Maunder in theearly 20th century. Jefferson’s weather diary commented on historical cycles from Roman times to the “common opinion that the climates of the several states of our union have undergone a sensible change since the dates of their first settlements; that the degrees of both heat and cold have moderated…May we not hope that the methods invented in later times …will at length ascertain this curious fact in physical history.”

Contemporary studies. Moving on to recent studies on the relationships between TSI and key climate indicators and paleoproxies such as the North Atlantic Meridional Circulation Index, tropical Atlantic surface temperatures, glacial mass and movements and zones of the extent of tropical rain belts. The authors refer to Soon’s contribution to the 2014 Climate Change: The Facts for a more thorough treatment. They note that the IPCC treatment of this topic suffers from serious misinterpretations, missing physical mechanisms and political bias.

Regarding the measurement of TSI and the correlation with surface temperatures the authors review the literature and conclude that too often researchers have not picked the best measures for the TSI or surface temperature. The urban heat island effect is a major complicating factor and it is important to use time series data from non-urban areas and to decontaminate data from urban areas.

Correlating TSI with water vapour. They regard the total atmospheric water as a much neglected key variable. Given that water vapour is the dominant greenhouse gas (if you are concerned with them) this neglect would appear to be unsatisfactory. It may be explained by the difficulty of handling the complex relationship with clouds and so it is hard to make rapid progress and the pressure to obtain short-term research grants for quick results rules out some of the important work that needs to be done.

This entry was posted in Global warming and climate change policy, Rafe. Bookmark the permalink.

5 Responses to Soon and Baliunas on the sun and water vapour

  1. cohenite

    David Stockwell did a good paper on TSI and temperature. Figures 4 – 7 are revealing.

  2. Herodotus

    It’s noticeable when surveying the comments sections under any article in a news organ like The Australian that there are numerous “readers” (or members of GeUp) that still insist on the old canard that all scientists are gung-ho for the warming thesis and that wind and solar are not just effective but cheaper than the evil fossils. Sceptical science has no place in their world.
    Unless scepticism finds its way back into the daily chook feed, nothing will stop the lemming-like lurch toward the precipice.

  3. stackja

    Thomas Jefferson would be hounded out of society today.

  4. For information about what is wrong with the “expert” opinions, and why, please see this definitive paper.
    It is obvious that the proponents of AGW are either ignorant or cooked, or both.

  5. Rohan

    cohenite
    #2776774, posted on July 30, 2018 at 10:53 pm
    David Stockwell did a good paper on TSI and temperature. Figures 4 – 7 are revealing.

    Thanks for the link cohenite. When I see plots between TSI vs global temperature, the lag and dampening are apparent to anyone who is awake. The fact that Stockwell used the Bode plot to determine the frequency and gain of the system in terms of an op amp has significant merits. But I don’t think it’s the only way to look at that through that lens though.

    Bode plots in process control theory (eg controlling temperature on a tank or a car’s suspension etc) are used to define system stability based on the frequency of input change. At some point in a 2nd order feedback loop, if the frequency becomes too high, the system becomes unstable and can oscillate out of control. From memory, that’s the frequency at the shoulder of the Bode plot, but it’s been a while.

    I would think that by using the global temperature fluctuation in terms of a 2nd order feedback loop of a PI or PID type control system and plotting that in a Bode Diagram, that it would reinforce that TSI is the only significant forcing factor and that GHG have more a dampening effect. Which would make a lot more sense as GHG’s are not an input of energy, but a heat sink of sorts. All TSI vs global temp plots shows that the system appears to dampen with lag.

    And again, if I recall correctly, the gradient of the slope on the Bode plot is the dampening factor. I reckon that GHG’s are acting as the gas strut in the climate’s suspension system.

    But I could be wrong. Happy to stand corrected but I have a hunch.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.