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	<title>Climate Science and Politics &#187; global temperature</title>
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		<title>-Gisstemp &#8211; Global Temperature at &#8220;Tipping Point&#8221;?</title>
		<link>http://climatepatrol.net/2010/05/21/gisstemp-global-temperature-at-tipping-point/</link>
		<comments>http://climatepatrol.net/2010/05/21/gisstemp-global-temperature-at-tipping-point/#comments</comments>
		<pubDate>Sat, 22 May 2010 05:45:51 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Climate Propaganda]]></category>
		<category><![CDATA[English Climate Categories]]></category>
		<category><![CDATA[Global Temperature History]]></category>
		<category><![CDATA[arctic temperature]]></category>
		<category><![CDATA[arctic warming]]></category>
		<category><![CDATA[Gisstemp]]></category>
		<category><![CDATA[global temperature]]></category>
		<category><![CDATA[global temperature index]]></category>
		<category><![CDATA[global temperautre history]]></category>
		<category><![CDATA[HadCRUT3]]></category>

		<guid isPermaLink="false">http://climatepatrol.net/?p=237</guid>
		<description><![CDATA[James Hansen, the 68 year old icon of climate research from the NASA Goddard Institute for Space Studies (NASA GISS), has brought off another coup to combine his science with political alarmism. &#8220;We compare global temperature reconstructions of GISS, NCDC, and HadCRUT. We conclude that global temperature continued to rise rapidly in the past decade, despite large year-to-year fluctuations associated with the El Nino-La Nina cycle of tropical ocean temperature.&#8221; draft of &#8220;Current GISS Global Surface Temperature Analysis&#8221;, dated March 19, 2010. But he plows a lonely furrow, using his GISS co-authors R. Ruedy, M. Sato, and K. Lo . Co-author R. Ruedy wrote in his August 3, 2007, email to his co-worker at GISS and RealClimate blogger Gavin Schmidt: The United States Historical Climate Network] data are not routinely kept up-to-date (at this point the (sic) seem to end in 2002)&#8230;NASA’s assumption that the adjustments made the older data consistent with future data … may not have been correct. He claimed that this introduced an estimated warming into the [U.S.] record of 0.1 deg C. Ruedy then described an alternate way of manipulating the USHCN temperature data in line with the Global Climate Network (GHCN), “a more careful method they might consider using, [...]]]></description>
		<wfw:commentRss>http://climatepatrol.net/2010/05/21/gisstemp-global-temperature-at-tipping-point/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<title>Giss versus UAH: 85,7% more warming after 30 years!</title>
		<link>http://climatepatrol.net/2009/01/22/giss-versus-uah-857-more-warming-after-30-years/</link>
		<comments>http://climatepatrol.net/2009/01/22/giss-versus-uah-857-more-warming-after-30-years/#comments</comments>
		<pubDate>Thu, 22 Jan 2009 17:23:14 +0000</pubDate>
		<dc:creator>Climate Patrol</dc:creator>
				<category><![CDATA[English Climate Categories]]></category>
		<category><![CDATA[Global Temperature History]]></category>
		<category><![CDATA[Giss-Nasa]]></category>
		<category><![CDATA[Gisstemp]]></category>
		<category><![CDATA[global temperature]]></category>
		<category><![CDATA[temperature 1979-2008]]></category>
		<category><![CDATA[temperature 2008]]></category>
		<category><![CDATA[UAH]]></category>
		<category><![CDATA[UHI]]></category>
		<category><![CDATA[University of Alabama]]></category>

		<guid isPermaLink="false">http://climatepatrol.net/?p=79</guid>
		<description><![CDATA[Global Temperature 1979-2008 marks an anniversary of 30 years of temperature history of the satellite era. Since the World Meteorological Organization has defined &#8220;climate&#8221; as &#8220;the average weather&#8221; over a classical period of 30 years, we have now a record of a full climate period of near surface temperatures as measured by satellites. This is particularly interesting because surface temperatures records by surface stations are contineously critized as being contaminated by the urban heat island effect of a growing population around the station (UHI effect). Let&#8217;s look at the above graph. At first glance, the five datasets follow more an less the same trend. I have re-baselined the graph by attributing index 0 (zero) to the average temperature of start year 1979 for each metric. Now look at the result:   The temperature of the satellite MSU unit of the University of Alabama indicated thus that temperature in 2008 was +0,28°C above 1979. At the same time, temperature by Giss Nasa land-ocean index rose +0,52°C which indeed means 85,7% more warming of Giss land-ocean compared to UAH-MSU after 30 years of satellite measurements of near surface temperature (lower troposphere). The long-term trendline shows a slope of +0,127°C resp. +0,162°C per decade, which [...]]]></description>
		<wfw:commentRss>http://climatepatrol.net/2009/01/22/giss-versus-uah-857-more-warming-after-30-years/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
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		<item>
		<title>RSS Micro Sound Temperature Tends Cooler Than Surface</title>
		<link>http://climatepatrol.net/2008/11/17/rss-micro-sound-temperature-tends-cooler-than-surface/</link>
		<comments>http://climatepatrol.net/2008/11/17/rss-micro-sound-temperature-tends-cooler-than-surface/#comments</comments>
		<pubDate>Mon, 17 Nov 2008 20:05:23 +0000</pubDate>
		<dc:creator>Climate Patrol</dc:creator>
				<category><![CDATA[English Climate Categories]]></category>
		<category><![CDATA[Global Temperature History]]></category>
		<category><![CDATA[UHI urban heat islands]]></category>
		<category><![CDATA[global temperature]]></category>
		<category><![CDATA[Mears]]></category>
		<category><![CDATA[RSS]]></category>
		<category><![CDATA[RSS-MSU]]></category>
		<category><![CDATA[satellite]]></category>

		<guid isPermaLink="false">http://climatepatrol.net/?p=73</guid>
		<description><![CDATA[The above graph shows the revision of the RSS-MSU temperature history. Blue shades signify upward corrections and dark yellow shades signify downward corrections, resulting in an overall decrease of global warming from 0.169 to 0.159° per decade.  Temperature graphs of various metrics draw closer together. Until 2003 they were &#8220;all over the place&#8221; (see &#8220;reasononline&#8221;). After correction in 2003, John Christy&#8221; stated in an e-mail to &#8220;reasononline&#8221; dryly: &#8220;The previous linear extrapolation indicated a temperature of +0.9 C +/- 0.5 C in 2100, the new data indicate a temperature of +1.2 +/- 0.5 C.&#8221; This was consistent with 0.12 C warming per decade at that time. At the same time, RSS made upward corrections on their own. But &#8220;reasononline&#8221; continued: &#8220;However, the Remote Sensing Systems team has made some additional adjustments, such that their global trend is 0.193 degrees per decade. Christy and Spencer disagree with those additional RSS adjustments, but acknowledge that it&#8217;s an open scientific question which team is correct.&#8221; This open scientific question led Mears et al., 2003 to publicly rebuke the Spencer and Christy version and performed trends for a seperate &#8220;channel&#8221; (in 4000 &#8211; 7000 m altitude) which they claimed to reconfirm their earlier findings. Five [...]]]></description>
		<wfw:commentRss>http://climatepatrol.net/2008/11/17/rss-micro-sound-temperature-tends-cooler-than-surface/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Global Temperature 1979-2008 September Update</title>
		<link>http://climatepatrol.net/2008/10/18/global-temperature-1979-2008-september-update/</link>
		<comments>http://climatepatrol.net/2008/10/18/global-temperature-1979-2008-september-update/#comments</comments>
		<pubDate>Sat, 18 Oct 2008 16:46:27 +0000</pubDate>
		<dc:creator>Climate Patrol</dc:creator>
				<category><![CDATA[English Climate Categories]]></category>
		<category><![CDATA[Global Temperature History]]></category>
		<category><![CDATA[Giss-Nasa]]></category>
		<category><![CDATA[global temperature]]></category>
		<category><![CDATA[HadCRUT3]]></category>
		<category><![CDATA[NCDC]]></category>
		<category><![CDATA[noaa]]></category>
		<category><![CDATA[RSS]]></category>
		<category><![CDATA[UAH]]></category>

		<guid isPermaLink="false">http://climatepatrol.net/?p=71</guid>
		<description><![CDATA[  In the above graph, the global average surface temperature anomalies from 1979 to 2008 (September update of five different metrics) are displayed. Climatepatrol regularly updates the past 30-year trendline of &#8220;global warming&#8221; and provides you with the average slope of three surface station metrics (Nasa,  Noaa, Hadley Centre) and two satellite metrics. Results and comments Climatepatrol updated the five datasets as follows: HadCrut3, Giss, NCDC (land ocean idices) and RSS and UAH (micro sound units). First of all, it is interesting to see that the contineous thinning out of surface stations as well as corrections in sea surface station measurement history resulted again in a slight increase in the warming bias of land and ocean surface measurements compared to the satellite and balloon data. When drawing a trend line from 1979-2008, which represents the average of the surface stations and grid projections, the slope of the same trendline was artifically increased by + 0,016°C per century due to corrections within the datasets since May 2008. This does not seem much. It is however not the first time that the warming bias increases because of decreasing the number of surface stations on land. Climatepatrol also has the old dataset of GISS &#8220;meteorological stations only&#8221;. Using the corrected version, the [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Global Temperature About to Fall Below IPCC Scenarios</title>
		<link>http://climatepatrol.net/2008/07/09/global-temperature-about-to-fall-below-ipcc-scenarios/</link>
		<comments>http://climatepatrol.net/2008/07/09/global-temperature-about-to-fall-below-ipcc-scenarios/#comments</comments>
		<pubDate>Wed, 09 Jul 2008 22:20:45 +0000</pubDate>
		<dc:creator>Climate Patrol</dc:creator>
				<category><![CDATA[AGW Consensus]]></category>
		<category><![CDATA[Climate Models]]></category>
		<category><![CDATA[English Climate Categories]]></category>
		<category><![CDATA[Global Temperature History]]></category>
		<category><![CDATA[AGW]]></category>
		<category><![CDATA[emission scenarios]]></category>
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		<category><![CDATA[global temperature]]></category>
		<category><![CDATA[HadCRUT3]]></category>
		<category><![CDATA[IPCC scenarios]]></category>
		<category><![CDATA[pacific decadal oscillation]]></category>
		<category><![CDATA[PDO]]></category>
		<category><![CDATA[RSS]]></category>
		<category><![CDATA[SRES]]></category>
		<category><![CDATA[UAH]]></category>

		<guid isPermaLink="false">http://climatepatrol.net/?p=63</guid>
		<description><![CDATA[In a recent post I came up with a 100-year global temperature trend of 1.64°C per century using the temperature history of 5 metrics of the satellite era. With satellite temperature updates of June and by using GISS land-ocean-index instead of &#8220;meteorological stations only&#8221; as in May, this trend is now being reduced to 1.59°C per century. Although this is still consistent with Special Report on Emission Scenarios SRES as used in the two recent reports TAR and AR4 of the IPCC, the slope points towards the lower end of any scenario. First of all, lets have a look at the same global temperature trends. By using a running 4-year mean of the respective monthly temperature anomalies, the intention is to smooth out the effects of ENSO (El Nino &#8211; Southern Oscillation) as a natural variation influencing global temperature from one year to another. The professionals at Realclimate are the ones who have done it right I am sure. But this is not the main objective of the following graph. ENSO is probably the natural variability that is most cited by AGW proponents and the IPCC report is full of it alright. Yet another variable is the effect of two [...]]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Global Temperature 1979 &#8211; May 2008 &#8211; HATCrut3, Giss, NCDC, RSS, UAH</title>
		<link>http://climatepatrol.net/2008/06/23/global-temperature-1979-may-2008-hatcrut3-giss-ncdc-rss-uah/</link>
		<comments>http://climatepatrol.net/2008/06/23/global-temperature-1979-may-2008-hatcrut3-giss-ncdc-rss-uah/#comments</comments>
		<pubDate>Mon, 23 Jun 2008 22:24:16 +0000</pubDate>
		<dc:creator>Climate Patrol</dc:creator>
				<category><![CDATA[AGW Consensus]]></category>
		<category><![CDATA[English Climate Categories]]></category>
		<category><![CDATA[Global Temperature History]]></category>
		<category><![CDATA[Gisstemp]]></category>
		<category><![CDATA[global temperature]]></category>
		<category><![CDATA[global temperature index]]></category>
		<category><![CDATA[HatCRUT3]]></category>
		<category><![CDATA[NCDC-NOAA]]></category>
		<category><![CDATA[RSS-MSU]]></category>
		<category><![CDATA[temperature 1979-2008May]]></category>
		<category><![CDATA[UAH-MSU]]></category>

		<guid isPermaLink="false">http://climatepatrol.net/?p=68</guid>
		<description><![CDATA[The temperature history of the satellite era shows a trend of + 1,64°C per century as of May 2008 when combining five independent data sets. This is rather at the lower end of the IPCC projections and there are many indications that this upward trend will not continue. But for today, I just give you the facts. As promised before, I plotted a superimposed chart combining five different datasets of global temperature history. Please note that for one of them &#8211; GISS-NASA &#8211; I chose the one &#8220;meteorological stations only&#8221;, which means emphasis is given on those weather stations the data whereof are under constant revision, including those on parking lots, near air conditioners and on ships, etc, etc. But this is the domain of expertise of http://climateaudit.org and http://wattsupwiththat.wordpress.com.]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>HadCRUT3 Global Land-Ocean Temperature Index 1850-2008</title>
		<link>http://climatepatrol.net/2008/04/16/hatcrut3-global-land-ocean-temperature-index-1850-2008/</link>
		<comments>http://climatepatrol.net/2008/04/16/hatcrut3-global-land-ocean-temperature-index-1850-2008/#comments</comments>
		<pubDate>Thu, 17 Apr 2008 04:23:04 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[AGW Consensus]]></category>
		<category><![CDATA[Climate Change Events]]></category>
		<category><![CDATA[Climate Models]]></category>
		<category><![CDATA[English Climate Categories]]></category>
		<category><![CDATA[global temperature]]></category>
		<category><![CDATA[HadCRUT3]]></category>

		<guid isPermaLink="false">http://climatepatrol.net/?p=43</guid>
		<description><![CDATA[HatCRUT3 is the global temperature Index of the U.K. Hadley Metoffice. In another post, I will attempt to combine the 3 land-ocean indices of GISStemp, HadCRUT3 and NCDC in one graph with 1900-2000 as the 20th century reference period, because there seems to be a bit of a confusion regarding the different developments of the temperature networks. Here are the temperature anomalies for the 3 surface temperature networks for the first quarter 2008 compared to the 20th century average.                             GISStemp   HatCRUT3  NCDC January                   0.13              0.19           0.20 February                 0.27              0.32           0.38 March                     0.68              0.56           0.70 1st Quarter 2008    0.36              0.36           0.43 The hypothesis of &#8220;the great pacific climate shift&#8221; having occured around 1976-1978, which lead to a big junk of the warming of the eighties, can be read here. In a later post, I like us to also discuss why when looking at the temperature history graphs of the various networks, some graphs make believe that the warming will continue, others don&#8217;t. For a comparison between surface stations and mid tropospheric satelite measurements, see this graph by noaa. The climate research unit informs here that the dataset HatCRUT2 was replaced by HatCRUT3 from January 2006. The old version which will not be updated anymore [...]]]></description>
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		<slash:comments>2</slash:comments>
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