On May 19, 11:13 pm, "James" <
kingk...@fewpb.net> wrote:
> Friday, May 17, 2013
> New paper finds remarkable correlation between solar activity and the
> longest temperature record, spanning 350 years
> A recent paper presented by Dr. Ka-Kit Tung, professor of applied
> mathematics,
So not a scientist and not a scientific paper.
>University of Washington, finds a remarkable correlation
> between solar activity [TSI or total solar irradiance]
Except that correlation stopped around 1970.
> and the longest
> continuous series of instrumental temperature measurements in the world,
> the Central England Temperature [CET] record spanning 350 years since
> 1659. Dr. Tung also finds there has been no acceleration of alleged
> "anthropogenic" warming over the past 100 years, despite an exponential
> increase in CO2 emissions, and that the rate of alleged "anthropogenic"
> warming is "less than half of the accepted values." Dr. Tung finds much
> of the global and Northern Hemisphere temperature variability of the
> past 350 years can be explained by the natural Atlantic Multidecadal
> Oscillation [AMO].
>
> More here
http://tinyurl.com/akytjrl
> --
>
It's also not a paper. It was a talk delivered at something called
the Taida Institute for Mathematical Sciences in Taiwan.
Here's a response to an earlier paper by Tung:
If a student asks why Alaska warms from January to July, saying
"that's the annual cycle" isn't a real answer. It's just a new name
for the mystery. A real answer would involve physics: the northern
hemisphere receives more energy in July because it points toward the
Sun more directly in July than in January.
Similarly, many people blame the recent 50 year warming trend on
various "climate cycles" but don't explain the physics causing Earth
to gain energy. Tung and Zhou 2013 is the latest attempt to blame a
large part of Earth's warming on the Atlantic Multidecadal Oscillation
(AMO), which is a long-term fluctuation in N. Atlantic sea surface
temperatures. Previous attempts include Bob Tisdale's claim and Zhou
and Tung 2012 which WUWT advertised.
Tung and Zhou subtract any apparent "oscillations" with periods
between 50 and 90 years without explaining the physics causing Earth
to gain and lose energy, as depicted in their Figure 4. They seem to
imply that these cycles are more compelling than the mainstream
explanation which involves nonrepeating events. But the universe is
full of cycles and nonrepeating events, all of which obey the laws of
physics. Because mainstream science addresses the energy balance, I
find it more compelling than math without a basis in physics.
the criticism that AMO is associated with Atlantic sea surface temps,
which themselves are warmed by the anthropogenic forcing. So if you
remove the AMO influence in your linear regression [as Tung did],
you're removing some of the anthropogenic warming, and that may
explain why it's apparently underestimated. As far as I can tell,
that main point isn't addressed in this response, unless I'm missing
it.
I still think it's circular to subtract a linearly detrended AMO to
determine AGW, and then find that the remaining AGW is linear.
More here
http://www.skepticalscience.com/circular-argument-blaming-warming-on-amo.html
and
http://www.skepticalscience.com/anthropogenic-global-warming-rate-Is-it-steady-for-last-100-years.html