Thus there is a back and forth in
global cloudiness as the Sun's activity level changes over the decades and centuries — such as during the period covering the Medieval Warm Period, the Little Ice Age, and the current warm period — through latitudinal shifting of the jet stream tracks and permanent climate zones.
Not exact matches
He said: «Tropical glaciers are the canaries in the coalmine for our
global climate system,
as they integrate and respond to most of the key climatological variables — temperature, precipitation,
cloudiness, humidity and radiation.»
Consequently,
as they say slightly earlier in the abstract: «At present, it is not known whether changes in
cloudiness will exacerbate, mitigate, or have little effect on the increasing
global surface temperature caused by anthropogenic greenhouse radiative forcing.»
With respect to Mr. Best's post, which I may be unfairly implying is a good example, one of the fallacious but clever debate manipulations utilized by CC deniers and (way too many) lukewarmers is to focus relentlessly (often inaccurately) on climatological research frontiers such
as climate sensitivity, or relations between evaporation,
cloudiness, and
global albedo.
The mechanism by which the effect of oceanic variability over time is transferred to the atmosphere involves evaporation, conduction, convection, clouds and rainfall the significance of which has to date been almost entirely ignored due to the absence of the necessary data especially
as regards the effect of
cloudiness changes on
global albedo and thus the amount of solar energy able to enter the oceans.
«
Cloudiness as a
Global Climate Feedback Mechanism: The Effects of Radiation Balance and Surface Temperature of Variations in
Cloudiness.»
I have the impression of an alternating
global factor related to the Sun's energy input, moderated at any particular site by local events such
as cloudiness for a part of the year.
It is no coincidence that all those strong El Ninos of the recent warming spell have now faded away at the same time
as the sun became less active, the jets became more meridional,
global cloudiness increased, the tropospheric warming stalled and the stratosphere stopped cooling.
If the surface pressure distribution begins to shift to a more meridional / equatorward pattern
as it did around 2000 then if previously it was in a poleward / zonal mode it is clear that warming will have ceased and cooling has begun due to more
global cloudiness and less solar energy getting into the oceans.
An active sun gives more zonal jets and / or more poleward climate zones with less
global cloudiness and more energy into the oceans for gradually strengthening El Ninos
as compared to La Ninas and a gradual rise in
global tropospheric temperatures.
It also fits my New Climate Model which states that solar variations influence
global cloudiness so
as to change the proportion of solar energy that gets into the oceans to drive the climate system.
He said: «Tropical glaciers are the canaries in the coalmine for our
global climate system,
as they integrate and respond to most of the key climatological variables — temperature, precipitation,
cloudiness, humidity and radiation.»
Mike, I have long felt that a decrease in
cloudiness better explains such things
as glacier retreat than the small increase in
global average temperature.
This is the process whereby solar changes alter
global cloudiness so
as to change the amount of energy entering the oceans and thereby skew the balance of ENSO between El Nino warming or La Nina cooling: