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	<title>Climate Lab Book</title>
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	<link>http://www.climate-lab-book.ac.uk</link>
	<description>Experimenting in open climate science - open for contributions</description>
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		<item>
		<title>Nice climate figures</title>
		<link>http://www.climate-lab-book.ac.uk/2012/nice-climate-figures/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=nice-climate-figures</link>
		<comments>http://www.climate-lab-book.ac.uk/2012/nice-climate-figures/#comments</comments>
		<pubDate>Tue, 24 Apr 2012 10:54:13 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://www.climate-lab-book.ac.uk/?p=840</guid>
		<description><![CDATA[&#8220;A picture is worth a thousand words&#8221;, says the popular adage. It is something that we, as climate scientists, should take seriously, especially given the vast quantities of literature we might read through. I have certainly noticed that the quality &#8230; <a href="http://www.climate-lab-book.ac.uk/2012/nice-climate-figures/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2012/nice-climate-figures/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>On comparing models and observations</title>
		<link>http://www.climate-lab-book.ac.uk/2012/on-comparing-models-and-observations/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=on-comparing-models-and-observations</link>
		<comments>http://www.climate-lab-book.ac.uk/2012/on-comparing-models-and-observations/#comments</comments>
		<pubDate>Wed, 14 Mar 2012 10:35:54 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://www.climate-lab-book.ac.uk/?p=823</guid>
		<description><![CDATA[There has been some recent blog discussion on comparing observations and climate models consistently. Here is my effort at such a comparison using the CMIP5 models which are already available. Estimating &#8220;global temperature&#8221; from observations raises lots of subtle issues &#8230; <a href="http://www.climate-lab-book.ac.uk/2012/on-comparing-models-and-observations/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2012/on-comparing-models-and-observations/feed/</wfw:commentRss>
		<slash:comments>88</slash:comments>
		</item>
		<item>
		<title>The value of old weather observations</title>
		<link>http://www.climate-lab-book.ac.uk/2012/the-value-of-old-weather-observations/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-value-of-old-weather-observations</link>
		<comments>http://www.climate-lab-book.ac.uk/2012/the-value-of-old-weather-observations/#comments</comments>
		<pubDate>Tue, 06 Mar 2012 20:39:33 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://www.climate-lab-book.ac.uk/?p=814</guid>
		<description><![CDATA[Previous posts have described some initial analysis of the data from the Old Weather project, which is using public volunteers to digitise new historical weather observations from Royal Navy ships during World War 1. The good news is that these &#8230; <a href="http://www.climate-lab-book.ac.uk/2012/the-value-of-old-weather-observations/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2012/the-value-of-old-weather-observations/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Reconstructing Atlantic atmospheric variability</title>
		<link>http://www.climate-lab-book.ac.uk/2012/reconstructing-atlantic-atmospheric-variability/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=reconstructing-atlantic-atmospheric-variability</link>
		<comments>http://www.climate-lab-book.ac.uk/2012/reconstructing-atlantic-atmospheric-variability/#comments</comments>
		<pubDate>Wed, 08 Feb 2012 08:00:28 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Atlantic]]></category>
		<category><![CDATA[history]]></category>
		<category><![CDATA[variability]]></category>
		<category><![CDATA[weather]]></category>

		<guid isPermaLink="false">http://www.climate-lab-book.ac.uk/?p=779</guid>
		<description><![CDATA[In a previous post I discussed the Old Weather project which is using volunteers to transcribe the hand-written weather data from Royal Navy ships logs in the World War 1 period. The good news is the first 243 ships have &#8230; <a href="http://www.climate-lab-book.ac.uk/2012/reconstructing-atlantic-atmospheric-variability/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2012/reconstructing-atlantic-atmospheric-variability/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>The importance of reliable uncertainty estimates</title>
		<link>http://www.climate-lab-book.ac.uk/2012/reliable-uncertainty/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=reliable-uncertainty</link>
		<comments>http://www.climate-lab-book.ac.uk/2012/reliable-uncertainty/#comments</comments>
		<pubDate>Tue, 03 Jan 2012 19:21:06 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[uncertainty]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=706</guid>
		<description><![CDATA[Reliable estimates of uncertainty are arguably more important than the actual value being quoted. I recently came across a classic example in astronomy. From the late 1920s, estimates have been published for the &#8216;Hubble Constant&#8217; &#8211; a measure of how &#8230; <a href="http://www.climate-lab-book.ac.uk/2012/reliable-uncertainty/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2012/reliable-uncertainty/feed/</wfw:commentRss>
		<slash:comments>14</slash:comments>
		</item>
		<item>
		<title>What happens if you spin the Earth backwards?</title>
		<link>http://www.climate-lab-book.ac.uk/2011/earth-backwards/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=earth-backwards</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/earth-backwards/#comments</comments>
		<pubDate>Thu, 08 Dec 2011 14:53:54 +0000</pubDate>
		<dc:creator>Robin Smith</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[MOC]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=678</guid>
		<description><![CDATA[This might sound like a crazy idea, but bear with me. I mean, why not? We&#8217;ve got some pretty general computer models of the climate, all we have to do is change the sign of a couple of numbers. There &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/earth-backwards/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/earth-backwards/feed/</wfw:commentRss>
		<slash:comments>11</slash:comments>
		</item>
		<item>
		<title>Time of emergence of climate signals</title>
		<link>http://www.climate-lab-book.ac.uk/2011/time-of-emergence/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=time-of-emergence</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/time-of-emergence/#comments</comments>
		<pubDate>Mon, 05 Dec 2011 15:24:48 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[uncertainty]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=656</guid>
		<description><![CDATA[The time at which the signal of climate change emerges from the &#8216;noise&#8217; of natural climate variability (Time of Emergence, ToE) is a key variable for climate predictions and risk assessments. The figure below shows the ToE for a range &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/time-of-emergence/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/time-of-emergence/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Uncertainty in temperature variability</title>
		<link>http://www.climate-lab-book.ac.uk/2011/uncertainty-in-temperature-variability/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=uncertainty-in-temperature-variability</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/uncertainty-in-temperature-variability/#comments</comments>
		<pubDate>Sun, 13 Nov 2011 14:06:20 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[uncertainty]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=625</guid>
		<description><![CDATA[It is well known that there is considerable uncertainty in the projected response of climate models to increases in radiative forcing. However, there is also considerable uncertainty in the model simulated internal variability. The top row of the figure shows &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/uncertainty-in-temperature-variability/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/uncertainty-in-temperature-variability/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Climate uncertainty: moving from &#8216;what&#8217; to &#8216;when&#8217;</title>
		<link>http://www.climate-lab-book.ac.uk/2011/from-what-to-when/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=from-what-to-when</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/from-what-to-when/#comments</comments>
		<pubDate>Tue, 27 Sep 2011 10:13:03 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[projections]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[uncertainty]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=433</guid>
		<description><![CDATA[Update (23/10/11): The full article has now been published in Nature Climate Change Climate projections (such as from the IPCC) usually consider the question of &#8220;what will happen to our future climate&#8221;. But, this question may be more informative if &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/from-what-to-when/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/from-what-to-when/feed/</wfw:commentRss>
		<slash:comments>7</slash:comments>
		</item>
		<item>
		<title>Uncertainty in uncertainty</title>
		<link>http://www.climate-lab-book.ac.uk/2011/uncertainty-in-uncertainty/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=uncertainty-in-uncertainty</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/uncertainty-in-uncertainty/#comments</comments>
		<pubDate>Wed, 24 Aug 2011 09:09:03 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[projections]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[uncertainty]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=541</guid>
		<description><![CDATA[There has been much discussion recently on whether GCMs participating in intercomparisons, such as CMIP3 and CMIP5, are &#8216;independent&#8217;. But if they are not, how does this make a difference to the uncertainty in our projections for future climate? The &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/uncertainty-in-uncertainty/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/uncertainty-in-uncertainty/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Trends in Central England Temperature</title>
		<link>http://www.climate-lab-book.ac.uk/2011/trends-in-cet/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=trends-in-cet</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/trends-in-cet/#comments</comments>
		<pubDate>Wed, 10 Aug 2011 19:36:15 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=501</guid>
		<description><![CDATA[Previous posts have discussed climate variability in general, and modelled decadal trends in temperature specifically. However, I should have considered decadal trends in observations as well, especially as there is a long temperature record available for the UK. The annual &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/trends-in-cet/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/trends-in-cet/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Visualising climate with 2d colour bars</title>
		<link>http://www.climate-lab-book.ac.uk/2011/visualising-climate/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=visualising-climate</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/visualising-climate/#comments</comments>
		<pubDate>Sun, 10 Jul 2011 22:56:40 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[precipitation]]></category>
		<category><![CDATA[projections]]></category>
		<category><![CDATA[uncertainty]]></category>
		<category><![CDATA[visualisation]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=461</guid>
		<description><![CDATA[A recent paper by Teuling et al. suggested the use of 2d colour bars for visualising climate fields. I thought I would give this a try &#8211; and Ryan Teuling was kind enough to provide the code to construct the &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/visualising-climate/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/visualising-climate/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Learning about past climate from ships logs</title>
		<link>http://www.climate-lab-book.ac.uk/2011/learning-about-past-climate-from-ships-logs/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=learning-about-past-climate-from-ships-logs</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/learning-about-past-climate-from-ships-logs/#comments</comments>
		<pubDate>Fri, 17 Jun 2011 08:00:52 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Arctic]]></category>
		<category><![CDATA[history]]></category>
		<category><![CDATA[sea-ice]]></category>
		<category><![CDATA[variability]]></category>
		<category><![CDATA[weather]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=415</guid>
		<description><![CDATA[Understanding the climate of the past is extremely valuable to help put modern weather observations into a long-term context. Although we have considerable records of past weather, especially over land, more data is always welcome. Given the British obsession with &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/learning-about-past-climate-from-ships-logs/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/learning-about-past-climate-from-ships-logs/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>When to use uncertain climate forecasts</title>
		<link>http://www.climate-lab-book.ac.uk/2011/uncertain-climate-forecasts/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=uncertain-climate-forecasts</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/uncertain-climate-forecasts/#comments</comments>
		<pubDate>Thu, 12 May 2011 11:52:30 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[precipitation]]></category>
		<category><![CDATA[projections]]></category>
		<category><![CDATA[uncertainty]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=385</guid>
		<description><![CDATA[Climate models produce projections of changes in climate from the present day, but these projections have a range, or spread. A simple measure of the confidence in a forecast would be the signal-to-noise ratio, r, of the size of the &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/uncertain-climate-forecasts/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/uncertain-climate-forecasts/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>What is a year?</title>
		<link>http://www.climate-lab-book.ac.uk/2011/what-is-a-year/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=what-is-a-year</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/what-is-a-year/#comments</comments>
		<pubDate>Thu, 17 Mar 2011 17:14:50 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[SSTs]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=347</guid>
		<description><![CDATA[A rather surprising question perhaps, but the answer is, &#8216;it depends&#8217;. There is no climatic reason to define a year from January to December, but that is what is generally done. But, is this the best definition? What is &#8216;best&#8217; &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/what-is-a-year/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/what-is-a-year/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Hysteresis of the Atlantic MOC in an AOGCM</title>
		<link>http://www.climate-lab-book.ac.uk/2011/hysteresis/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=hysteresis</link>
		<comments>http://www.climate-lab-book.ac.uk/2011/hysteresis/#comments</comments>
		<pubDate>Thu, 10 Mar 2011 18:23:10 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Atlantic]]></category>
		<category><![CDATA[GCMs]]></category>
		<category><![CDATA[hysteresis]]></category>
		<category><![CDATA[MOC]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=301</guid>
		<description><![CDATA[UPDATE (16/06/11) &#8211; the paper describing this work has now been published and highlighted. The potential for a rapid collapse in the strength of the Atlantic overturning circulation (AMOC) has long been recognised. The pioneering work of Stommel first suggested &#8230; <a href="http://www.climate-lab-book.ac.uk/2011/hysteresis/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2011/hysteresis/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Arctic predictability</title>
		<link>http://www.climate-lab-book.ac.uk/2010/arctic-predictability/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=arctic-predictability</link>
		<comments>http://www.climate-lab-book.ac.uk/2010/arctic-predictability/#comments</comments>
		<pubDate>Mon, 01 Nov 2010 14:35:13 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Arctic]]></category>
		<category><![CDATA[GCMs]]></category>
		<category><![CDATA[predictability]]></category>
		<category><![CDATA[sea-ice]]></category>
		<category><![CDATA[SSTs]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=255</guid>
		<description><![CDATA[After attending a recent workshop on Arctic predictability, I thought a brief discussion on sea-ice variability and potential predictability might be of interest. The simplest measure of predictability on multi-annual timescales is &#8220;potential predictability&#8221; (PP), which is the ratio of &#8230; <a href="http://www.climate-lab-book.ac.uk/2010/arctic-predictability/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2010/arctic-predictability/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>A brief history of early climate science</title>
		<link>http://www.climate-lab-book.ac.uk/2010/a-brief-history/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=a-brief-history</link>
		<comments>http://www.climate-lab-book.ac.uk/2010/a-brief-history/#comments</comments>
		<pubDate>Mon, 23 Aug 2010 11:30:29 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[history]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=168</guid>
		<description><![CDATA[Something a little bit different for this post&#8230;. After all the recent controversy over hacked emails, IPCC errors and the British public apparently growing more skeptical about climate science and scientists, it is perhaps interesting to take a step back &#8230; <a href="http://www.climate-lab-book.ac.uk/2010/a-brief-history/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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		<title>Atlantic multi-decadal variability</title>
		<link>http://www.climate-lab-book.ac.uk/2010/atlantic-multi-decadal-variability/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=atlantic-multi-decadal-variability</link>
		<comments>http://www.climate-lab-book.ac.uk/2010/atlantic-multi-decadal-variability/#comments</comments>
		<pubDate>Fri, 20 Aug 2010 16:58:42 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[Atlantic]]></category>
		<category><![CDATA[GCMs]]></category>
		<category><![CDATA[SSTs]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=87</guid>
		<description><![CDATA[Observations of Atlantic SSTs show significant multi-decadal variability since 1870 (see red line in figure 2 below), often termed the Atlantic Multi-Decadal Oscillation (AMO), though there is no clear evidence that it is really an &#8216;oscillation&#8217;. There is discussion about &#8230; <a href="http://www.climate-lab-book.ac.uk/2010/atlantic-multi-decadal-variability/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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		<slash:comments>2</slash:comments>
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		<title>Communicating climate variability</title>
		<link>http://www.climate-lab-book.ac.uk/2010/communicating-climate-variability/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=communicating-climate-variability</link>
		<comments>http://www.climate-lab-book.ac.uk/2010/communicating-climate-variability/#comments</comments>
		<pubDate>Wed, 11 Aug 2010 10:04:45 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[projections]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[uncertainty]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=90</guid>
		<description><![CDATA[Update 10/03/11 &#8211; Accepted article also online. Comments very welcome. Communicating the differences and links between climate variability and climate change is of growing importance, and I am currently writing an article for &#8220;Weather&#8221; on this. One of the figures &#8230; <a href="http://www.climate-lab-book.ac.uk/2010/communicating-climate-variability/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Consensus in precipitation projections</title>
		<link>http://www.climate-lab-book.ac.uk/2010/consensus-in-precipitation-projections/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=consensus-in-precipitation-projections</link>
		<comments>http://www.climate-lab-book.ac.uk/2010/consensus-in-precipitation-projections/#comments</comments>
		<pubDate>Fri, 25 Jun 2010 12:00:03 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[precipitation]]></category>
		<category><![CDATA[projections]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=63</guid>
		<description><![CDATA[In the AR4, the IPCC presented this figure showing the consensus in precipitation projections for the 21st century, designed to be of use to planning for adaptation and mitigation. The coloured regions show where changes are likely to occur. My &#8230; <a href="http://www.climate-lab-book.ac.uk/2010/consensus-in-precipitation-projections/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>http://www.climate-lab-book.ac.uk/2010/consensus-in-precipitation-projections/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
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		<title>Global mean temperature variability in observations and GCMs</title>
		<link>http://www.climate-lab-book.ac.uk/2010/global-mean-temperature-variability/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=global-mean-temperature-variability</link>
		<comments>http://www.climate-lab-book.ac.uk/2010/global-mean-temperature-variability/#comments</comments>
		<pubDate>Thu, 24 Jun 2010 12:00:29 +0000</pubDate>
		<dc:creator>Ed Hawkins</dc:creator>
				<category><![CDATA[GCMs]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[variability]]></category>

		<guid isPermaLink="false">http://www.met.reading.ac.uk/~ed/blog/?p=15</guid>
		<description><![CDATA[I am often surprised at how different climate models can be. Shown below is the annual mean, global mean surface air temperature from control runs of 21 of the AR4 GCMs, along with the observations (HadCRUT3). The spread in the magnitude of variability is enormous, as seen by eye, but also the timeseries have very different 'memory' characteristics. <a href="http://www.climate-lab-book.ac.uk/2010/global-mean-temperature-variability/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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		<slash:comments>1</slash:comments>
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