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	<title>Comments on: Stitching Solar Irradiance</title>
	<atom:link href="http://climateaudit.org/2007/07/24/stitching-solar-irradiance/feed/" rel="self" type="application/rss+xml" />
	<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/</link>
	<description>by Steve McIntyre</description>
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	<item>
		<title>By: Gunnar</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96453</link>
		<dc:creator><![CDATA[Gunnar]]></dc:creator>
		<pubDate>Fri, 03 Aug 2007 16:37:13 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96453</guid>
		<description><![CDATA[&gt;&gt; that the average output of a nonlinear system is not the output of the average of inputs.

#230 Allan, you have expressed a much more elegant way of summarizing what I was trying to say.  In effect, they are modelling the earth as a planet that doesn&#039;t rotate, with the sun being 1/4 of it&#039;s actual strength.  Their wishful thinking is that the sun is a constant.]]></description>
		<content:encoded><![CDATA[<p>&gt;&gt; that the average output of a nonlinear system is not the output of the average of inputs.</p>
<p>#230 Allan, you have expressed a much more elegant way of summarizing what I was trying to say.  In effect, they are modelling the earth as a planet that doesn&#8217;t rotate, with the sun being 1/4 of it&#8217;s actual strength.  Their wishful thinking is that the sun is a constant.</p>
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		<title>By: Allan Ames</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96452</link>
		<dc:creator><![CDATA[Allan Ames]]></dc:creator>
		<pubDate>Fri, 03 Aug 2007 15:28:23 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96452</guid>
		<description><![CDATA[#227 Gunnar:  Thank you.  Yes is is obvious, isn&#039;t it, that the sun heats the Earth, and that at some level fluctuations in TSI must appear as fluctuations in temperature.  The reference in #8 by Paul Biggs says the 11y cycle “output” is 0.2. I also agree with your second point, that the average output of a nonlinear system is not the output of the average of inputs.  If then follows that long term averages over cyclical components are most likely not the values which produce the average output (unless the noise level is high enough to obscure the signal entirely) which may ultimately doom all non-cyclical climate models. Something is going on, but averaging toward zero frequency is not the way to find it.

#229 Steve Molesworthy:   Given the political climate surrounding GW, I think the burden is on anyone whose methods fail to find a solar signal to clearly explain where it went, as a statistical issue, not a modeling issue.  L&amp;F had to know how AGW adherents would respond to a paper such as theirs.  To believers absence of proof is proof of absence.]]></description>
		<content:encoded><![CDATA[<p>#227 Gunnar:  Thank you.  Yes is is obvious, isn&#8217;t it, that the sun heats the Earth, and that at some level fluctuations in TSI must appear as fluctuations in temperature.  The reference in #8 by Paul Biggs says the 11y cycle “output” is 0.2. I also agree with your second point, that the average output of a nonlinear system is not the output of the average of inputs.  If then follows that long term averages over cyclical components are most likely not the values which produce the average output (unless the noise level is high enough to obscure the signal entirely) which may ultimately doom all non-cyclical climate models. Something is going on, but averaging toward zero frequency is not the way to find it.</p>
<p>#229 Steve Molesworthy:   Given the political climate surrounding GW, I think the burden is on anyone whose methods fail to find a solar signal to clearly explain where it went, as a statistical issue, not a modeling issue.  L&amp;F had to know how AGW adherents would respond to a paper such as theirs.  To believers absence of proof is proof of absence.</p>
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		<title>By: Steve Milesworthy</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96451</link>
		<dc:creator><![CDATA[Steve Milesworthy]]></dc:creator>
		<pubDate>Fri, 03 Aug 2007 10:38:26 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96451</guid>
		<description><![CDATA[#226 Allan
This is incorrect. Lockwood argues that the response to the solar cycle may be underestimated.

&quot;Are models underestimating the effect of solar forcing on climate?&quot;
Crooks et al EGU 2003

http://adsabs.harvard.edu/abs/2003EAEJA....14600C]]></description>
		<content:encoded><![CDATA[<p>#226 Allan<br />
This is incorrect. Lockwood argues that the response to the solar cycle may be underestimated.</p>
<p>&#8220;Are models underestimating the effect of solar forcing on climate?&#8221;<br />
Crooks et al EGU 2003</p>
<p><a href="http://adsabs.harvard.edu/abs/2003EAEJA" rel="nofollow">http://adsabs.harvard.edu/abs/2003EAEJA</a>&#8230;.14600C</p>
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		<title>By: Tom Vonk</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96450</link>
		<dc:creator><![CDATA[Tom Vonk]]></dc:creator>
		<pubDate>Fri, 03 Aug 2007 10:36:03 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96450</guid>
		<description><![CDATA[#225
Sorry and apologies
I was answering a halucinatingly ignorant comment of some Steven Milworth (?) about Maxwell&#039;s equations and the G&amp;T paper where he compared microwave ovens with infrared absorption .
Apparently Steve has erased it thus my answer lost it sense .
Again apologies and I&#039;m stopping commenting this subject .]]></description>
		<content:encoded><![CDATA[<p>#225<br />
Sorry and apologies<br />
I was answering a halucinatingly ignorant comment of some Steven Milworth (?) about Maxwell&#8217;s equations and the G&amp;T paper where he compared microwave ovens with infrared absorption .<br />
Apparently Steve has erased it thus my answer lost it sense .<br />
Again apologies and I&#8217;m stopping commenting this subject .</p>
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		<title>By: Gunnar</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96449</link>
		<dc:creator><![CDATA[Gunnar]]></dc:creator>
		<pubDate>Thu, 02 Aug 2007 20:22:14 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96449</guid>
		<description><![CDATA[&gt;&gt; How is it possible that Earth&#039;s temperature does not respond to a cyclical 11 year driving force?

Yes, you are absolutely correct, since it&#039;s common sense.  When the sun rises, the day warms up, invalidating the L&amp;F assertion that the atmosphere doesn&#039;t repond to changes in TSI.

First of all, the paper clearly shows incorrect temperature data.  I have plotted the global temperature from satellite data (yes, the oceans are part of the world as well), and the graph does not steadily go up, like Lockwood deceptively shows.  In fact, Lockwood has eliminated the 1998 peak.  In 1998, it was .8, while June 2007 stands at .22.  That&#039;s a .6 deg drop that Lockwood has eliminated.  The correct data: http://vortex.nsstc.uah.edu/data/msu/t2lt/uahncdc.lt

&lt;blockquote&gt;The Earth&#039;s surface &lt;b&gt;air&lt;/b&gt; temperature (figure 1e) does not respond to the solar cycle. Even a large amplitude modulation would be heavily damped in the global mean temperature record by the long thermal time constants associated with parts of the climate system, in particular the &lt;b&gt;oceans&lt;/b&gt; &lt;/blockquote&gt;

Contrary to the article in the UK rag, where Lockwood was quoted as saying there was no time lag, he writes here that the time lag is so large, that the &quot;temperature does not respond to the solar cycle&quot;.  This contradicts direct observation.

He uses the words of control theory, but does not seem to understand the concepts.  He seems to think that &quot;dampening&quot; is equivalent to &quot;smoothing&quot;.  Physical systems are not doing computer smoothing.  As such, a damped system is certainly still &quot;responding&quot;.  No energy is lost.  The worst part is the obvious argument switch (in bold).  He starts out by referring to the atmosphere, then switches to oceans.  Oceans have a much larger time lag than the atmosphere.  The fact that the atmosphere does respond to solar variation is confirmed by the increase in temperature from night to day.  If there were an atmospheric time lag that prevented the atmosphere from responding to the solar cycle delta of perhaps 10 W/m2 (solar irradiance + positive feedback effects), then it would also prevent the day from heating up.

Lockwood&#039;s assertion about solar activity falling off since 1985 is disproved by direct evidence:

http://www.ngdc.noaa.gov/stp/SOLAR/IRRADIANCE/irrad.html

The solar data in the paper looks right, but that directly disproves the conclusion that solar activity has declined since 1985.  The reality is that it continues to exhibit an 11 year cycle, with 1986 being a minimum, not a maximum.

The crux of what you&#039;re looking for though is the source of his error:  They incorrectly use statistical adjustment.

With physical systems, it is incorrect to average daily, yearly or 11 year cycles and consider that to be the input to the system. Consider this charred roast analogy:

Wife:  Honey, the roast is charred black, did you cook it at 350 for one hour?
AGW husband: Why, yes, the temperature did AVERAGE 350 for one hour.  For 10 minutes, it was at 1500, so I compensated by setting it to 120 for 50 minutes.  That&#039;s the same, right?

Well, no!  My daily exposure to the sun, averaged over the whole day is very low, and yet I will get a sunburn. Real systems react to current input values, as time goes by.  Amazingly, L&amp;F average a solar cycle, and conclude it has no effect.  If this were true, it should not get so hot in the summer, since a few months from now, it will be winter, and the input should be considered to be the average of winter and summer.]]></description>
		<content:encoded><![CDATA[<p>&gt;&gt; How is it possible that Earth&#8217;s temperature does not respond to a cyclical 11 year driving force?</p>
<p>Yes, you are absolutely correct, since it&#8217;s common sense.  When the sun rises, the day warms up, invalidating the L&amp;F assertion that the atmosphere doesn&#8217;t repond to changes in TSI.</p>
<p>First of all, the paper clearly shows incorrect temperature data.  I have plotted the global temperature from satellite data (yes, the oceans are part of the world as well), and the graph does not steadily go up, like Lockwood deceptively shows.  In fact, Lockwood has eliminated the 1998 peak.  In 1998, it was .8, while June 2007 stands at .22.  That&#8217;s a .6 deg drop that Lockwood has eliminated.  The correct data: <a href="http://vortex.nsstc.uah.edu/data/msu/t2lt/uahncdc.lt" rel="nofollow">http://vortex.nsstc.uah.edu/data/msu/t2lt/uahncdc.lt</a></p>
<blockquote><p>The Earth&#8217;s surface <b>air</b> temperature (figure 1e) does not respond to the solar cycle. Even a large amplitude modulation would be heavily damped in the global mean temperature record by the long thermal time constants associated with parts of the climate system, in particular the <b>oceans</b> </p></blockquote>
<p>Contrary to the article in the UK rag, where Lockwood was quoted as saying there was no time lag, he writes here that the time lag is so large, that the &#8220;temperature does not respond to the solar cycle&#8221;.  This contradicts direct observation.</p>
<p>He uses the words of control theory, but does not seem to understand the concepts.  He seems to think that &#8220;dampening&#8221; is equivalent to &#8220;smoothing&#8221;.  Physical systems are not doing computer smoothing.  As such, a damped system is certainly still &#8220;responding&#8221;.  No energy is lost.  The worst part is the obvious argument switch (in bold).  He starts out by referring to the atmosphere, then switches to oceans.  Oceans have a much larger time lag than the atmosphere.  The fact that the atmosphere does respond to solar variation is confirmed by the increase in temperature from night to day.  If there were an atmospheric time lag that prevented the atmosphere from responding to the solar cycle delta of perhaps 10 W/m2 (solar irradiance + positive feedback effects), then it would also prevent the day from heating up.</p>
<p>Lockwood&#8217;s assertion about solar activity falling off since 1985 is disproved by direct evidence:</p>
<p><a href="http://www.ngdc.noaa.gov/stp/SOLAR/IRRADIANCE/irrad.html" rel="nofollow">http://www.ngdc.noaa.gov/stp/SOLAR/IRRADIANCE/irrad.html</a></p>
<p>The solar data in the paper looks right, but that directly disproves the conclusion that solar activity has declined since 1985.  The reality is that it continues to exhibit an 11 year cycle, with 1986 being a minimum, not a maximum.</p>
<p>The crux of what you&#8217;re looking for though is the source of his error:  They incorrectly use statistical adjustment.</p>
<p>With physical systems, it is incorrect to average daily, yearly or 11 year cycles and consider that to be the input to the system. Consider this charred roast analogy:</p>
<p>Wife:  Honey, the roast is charred black, did you cook it at 350 for one hour?<br />
AGW husband: Why, yes, the temperature did AVERAGE 350 for one hour.  For 10 minutes, it was at 1500, so I compensated by setting it to 120 for 50 minutes.  That&#8217;s the same, right?</p>
<p>Well, no!  My daily exposure to the sun, averaged over the whole day is very low, and yet I will get a sunburn. Real systems react to current input values, as time goes by.  Amazingly, L&amp;F average a solar cycle, and conclude it has no effect.  If this were true, it should not get so hot in the summer, since a few months from now, it will be winter, and the input should be considered to be the average of winter and summer.</p>
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		<title>By: Allan Ames</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96448</link>
		<dc:creator><![CDATA[Allan Ames]]></dc:creator>
		<pubDate>Thu, 02 Aug 2007 19:30:24 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96448</guid>
		<description><![CDATA[Re 220, Dr M&#039;s request to move on:  Maybe I missed discussion, but my big problem with Lockwood and Frohlich is still this:  How is it possible that Earth&#039;s temperature does not respond to a cyclical 11 year driving force? (I am sure it actually does, but they blinded themselves to it.) If there is no response to 11 yr. cycles, why should the effect of any solar driving be observed, (noting the tranformability between frequency and time). Obvious answer: it should not because there is a strong negative forcing feedback.
Now,why doesn&#039;t the same feedback apply to CO2?]]></description>
		<content:encoded><![CDATA[<p>Re 220, Dr M&#8217;s request to move on:  Maybe I missed discussion, but my big problem with Lockwood and Frohlich is still this:  How is it possible that Earth&#8217;s temperature does not respond to a cyclical 11 year driving force? (I am sure it actually does, but they blinded themselves to it.) If there is no response to 11 yr. cycles, why should the effect of any solar driving be observed, (noting the tranformability between frequency and time). Obvious answer: it should not because there is a strong negative forcing feedback.<br />
Now,why doesn&#8217;t the same feedback apply to CO2?</p>
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		<title>By: Gunnar</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96447</link>
		<dc:creator><![CDATA[Gunnar]]></dc:creator>
		<pubDate>Thu, 02 Aug 2007 14:49:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96447</guid>
		<description><![CDATA[&gt;&gt; #225 Huh ?

#224, whch post are you responding to?]]></description>
		<content:encoded><![CDATA[<p>&gt;&gt; #225 Huh ?</p>
<p>#224, whch post are you responding to?</p>
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		<title>By: Tom Vonk</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96446</link>
		<dc:creator><![CDATA[Tom Vonk]]></dc:creator>
		<pubDate>Thu, 02 Aug 2007 13:28:01 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96446</guid>
		<description><![CDATA[#225

Huh ?
I admit that I didn&#039;t read all of the paper but the pages 80-85 are perfectly correct to the point of banality .
Where did you see that Maxwell&#039;s equations &quot;disprove the existence of microwave oven&quot; ?
I had to read the page 85 twice to conclude that you came to this hallucinating statement by completely misunderstanding the words &quot;One is left with the possibility to include a hypothetical warming by radiation by hand in terms of artificial heat densities .&quot;
In any case you confuse infrared photon absorption with an oscillation of an eletrical dipole in an electromagnetical field  what is quite impressive .
In such case ignorance is an understatement .]]></description>
		<content:encoded><![CDATA[<p>#225</p>
<p>Huh ?<br />
I admit that I didn&#8217;t read all of the paper but the pages 80-85 are perfectly correct to the point of banality .<br />
Where did you see that Maxwell&#8217;s equations &#8220;disprove the existence of microwave oven&#8221; ?<br />
I had to read the page 85 twice to conclude that you came to this hallucinating statement by completely misunderstanding the words &#8220;One is left with the possibility to include a hypothetical warming by radiation by hand in terms of artificial heat densities .&#8221;<br />
In any case you confuse infrared photon absorption with an oscillation of an eletrical dipole in an electromagnetical field  what is quite impressive .<br />
In such case ignorance is an understatement .</p>
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		<title>By: DeWitt Payne</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96445</link>
		<dc:creator><![CDATA[DeWitt Payne]]></dc:creator>
		<pubDate>Thu, 02 Aug 2007 05:57:41 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96445</guid>
		<description><![CDATA[#218

Maybe you or someone could ask Archer for his code. It seems to produce results quickly, so maybe it&#039;s not too elaborate.]]></description>
		<content:encoded><![CDATA[<p>#218</p>
<p>Maybe you or someone could ask Archer for his code. It seems to produce results quickly, so maybe it&#8217;s not too elaborate.</p>
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		<title>By: Steve McIntyre</title>
		<link>http://climateaudit.org/2007/07/24/stitching-solar-irradiance/#comment-96444</link>
		<dc:creator><![CDATA[Steve McIntyre]]></dc:creator>
		<pubDate>Thu, 02 Aug 2007 04:20:01 +0000</pubDate>
		<guid isPermaLink="false">http://www.climateaudit.org/?p=1827#comment-96444</guid>
		<description><![CDATA[#221. Look, I don&#039;t have time or energy to challenge or correct everything that&#039;s posted here and let lots of things pass. That doesn&#039;t mean that I agree with it. I&#039;ve tried to discourage certain types of discussion - see the commentary on http://www.climateaudit.org/?p=1851 . I&#039;d appreciate your not adding to the din.]]></description>
		<content:encoded><![CDATA[<p>#221. Look, I don&#8217;t have time or energy to challenge or correct everything that&#8217;s posted here and let lots of things pass. That doesn&#8217;t mean that I agree with it. I&#8217;ve tried to discourage certain types of discussion &#8211; see the commentary on <a href="http://www.climateaudit.org/?p=1851" rel="nofollow">http://www.climateaudit.org/?p=1851</a> . I&#8217;d appreciate your not adding to the din.</p>
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