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	<title>The Blackboard</title>
	<link>http://rankexploits.com/musings</link>
	<description>Where Climate Talk Gets Hot!</description>
	<lastBuildDate>Fri, 19 Mar 2010 21:41:23 +0000</lastBuildDate>
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	<language>en</language>
	
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		<title>HadCRUT: Down slightly from January.</title>
		<description><![CDATA[HadCRUT NH+SH posted  their temperatures anomaly for February:


The anomaly was 0.460 C, down from 0.495 C in January. ( Note that the January temperature was revise from 0.470 to 0.495.)
According to my tally, this was the 7th warmest February 4 in the HadCRUT NH&#038;SH record.  February anomalies are circled in the graph above; [...]]]></description>
		<link>http://rankexploits.com/musings/2010/hadcrut-down-slightly-from-january/</link>
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		<title>Carrot Eater&#8217;s Challenge: Rate of False Positives when applied to simulations pt. 1.</title>
		<description><![CDATA[WARNING: While adding GISS, I noticed I am not replicating my GISS results from the other computations precisely. That means there is at least 1 bug in my spreadsheet.  I&#8217;m looking for the bug.  In the meantime, I&#8217;m blanking out while I find the error. (It&#8217;s dinner time, and I may not find [...]]]></description>
		<link>http://rankexploits.com/musings/2010/carrot-eaters-challenge-rate-of-false-positives-when-applied-to-simulations-pt-1/</link>
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		<title>UHI in the U.S.A.</title>
		<description><![CDATA[Teasing out the Urban Heat Island effect can be a fiendishly difficult task. There are enough confounding factors that it is dangerously easy to simply pick a measure that shows what you want to show (be it a negligible or huge UHI) without including the nuances necessary.

Take this graph for example. It shows the U.S. [...]]]></description>
		<link>http://rankexploits.com/musings/2010/uhi-in-the-u-s-a/</link>
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		<title>Comparison of a trend of 0.2C/decade to NOAA: Since 2001 ( For Nathan )</title>
		<description><![CDATA[In comments yesterday, Nathan seemed to indicate he wanted to see the result of some sort of test with data beginning in January 2001. Here&#8217;s a graph just for Nathan:

Above is a graph showing how the trend of 0.2 C/decade fits into ±95% uncertainty intervals computed for NOAA observation. The uncertainty intervals are estimated assuming [...]]]></description>
		<link>http://rankexploits.com/musings/2010/comparison-of-a-trend-of-0-2cdecade-to-gisstemp-since-2001-for-nathan/</link>
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		<title>GISSTemp +0.71C: Slightly higher than January.</title>
		<description><![CDATA[GISSTemp released their land/ocean anomalies for February. It&#8217;s 0.71C, just edging out January.  Rebaselined anomalies and trends since 1980 are shown below, along with with a trend of 0.2C/decade shown for reference:
This is a hot start for the year.  Factoids about the GISSTemp data:

This is the second highest Feb. anomaly in the record; [...]]]></description>
		<link>http://rankexploits.com/musings/2010/gisstemp-0-71c-slightly-higher-than-january/</link>
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		<title>Satellite Trends for TLT</title>
		<description><![CDATA[RSS, UAH (v5.2) and the new revised UAH (v5.3) February temperature anomalies for the lower troposphere have been posted; anomalies during the observational record are shown below along with the  multi-model mean for the surface temperature based on 20th century simulations extended into the 21st century using A1B : 
Comparison of the RSS and [...]]]></description>
		<link>http://rankexploits.com/musings/2010/satellite-trends-for-tlt/</link>
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		<title>Not So Spherical Cows: More Toy Problems.</title>
		<description><![CDATA[In discussions of the application of the Hansen/Lebedeff gridding method to &#8220;toy planet&#8221; data, a few people noted that the &#8220;toy&#8221; data used did not hightlight a known way bias  can be introduced into a computed temperature trend as a result of dropping out a whole bunch of stations. This can give the false [...]]]></description>
		<link>http://rankexploits.com/musings/2010/not-so-spherical-cows-more-toy-problems/</link>
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		<title>In search of the UHI signal</title>
		<description><![CDATA[The Urban Heat Island (UHI) effect is something of a charged subject on climate science blogs. Depending on who you ask, you might hear that it either accounts for the majority of modern warming or that it doesn&#8217;t exist at all. While it is undeniable (and fairly easily shown) that both the site characteristics and [...]]]></description>
		<link>http://rankexploits.com/musings/2010/in-search-of-the-uhi-signal/</link>
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		<title>GISS Anomalies: More Spherical Cow.</title>
		<description><![CDATA[The &#8220;toy planet&#8221; discussion of the &#8220;basic&#8221; anomaly method in its most idealized form was such a hit, I&#8217;ve decided to discuss how the &#8216;bias&#8217; method used in section (3) of Hansen and Lebedeff 1987 &#8212; the method actually used by GISTemp&#8211; might be affected by deal with &#8220;the march of the thermometers&#8221;.  One [...]]]></description>
		<link>http://rankexploits.com/musings/2010/giss-anomalies-more-spherical-cow/</link>
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		<title>UAH Betting Results: Based on V 5.2</title>
		<description><![CDATA[Roy Spencer posted two versions of the UAH temperature of the lower troposphere! According to version 5.3, the temperature of the lower troposphere was 0.63C; according to version 5.2, it was 0.74C.  Despite the fact that I my bet of 0.64 would have been closer to correct using the splendid new version 5.3, we [...]]]></description>
		<link>http://rankexploits.com/musings/2010/uah-betting-results-based-on-v-5-2/</link>
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		<title>The Pure Anomaly Method: AKA A spherical cow.</title>
		<description><![CDATA[As some of my readers know, when someone raises a criticism of a particular widely used result in climate science, I often like to try to understand the main issue and discuss it using a toy problem or &#8220;cartoon&#8221;. That is: I like to create an artificial problem that highlights the issue that someone claims [...]]]></description>
		<link>http://rankexploits.com/musings/2010/the-pure-anomaly-method-aka-a-spherical-cow/</link>
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		<title>A detailed look at USHCN min/max temps</title>
		<description><![CDATA[This post builds on a simple spatial gridding model outlined here. As always, the latest source code can be found at http://drop.io/0yhqyon, and I welcome folks helping improve it.
If we are looking at the effect of adjustments and station quality, we should really be looking at maximum and minimum temperature data rather than mean data, [...]]]></description>
		<link>http://rankexploits.com/musings/2010/a-detailed-look-at-ushcn-mimmax-temps/</link>
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		<title>Guest Post Invitiation to Chiefio</title>
		<description><![CDATA[Many in comments have suggested that some of the rebuttals to the claim that the march of the thermometers actually biases temperature anomalies reported by NOAA, GISSTemp and CRU may be unnecessary.  How so, it&#8217;s possible no one has really made that claim. If so, the &#8216;rebuttals&#8217; would be countering strawmen (i.e. arguments that [...]]]></description>
		<link>http://rankexploits.com/musings/2010/guest-post-invitiation-to-chiefio/</link>
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		<title>Accuweather: Because Weather Matters Too!</title>
		<description><![CDATA[This is a Sponsored Post written by me on behalf of AccuWeather. All opinions are 100% mine.
As many climate-blog addicts are aware, weather is not climate.  While we are all busy arguing whether this years DC snowstorm was caused by climate change, those in DC were probably just thankful for online services like AccuWeather [...]]]></description>
		<link>http://rankexploits.com/musings/2010/accuweather-because-weather-matters-too/</link>
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		<title>Timeline of &#8220;The march of the thermometers&#8221; meme</title>
		<description><![CDATA[I have to admit I initially missed the whole &#8220;march of the thermometers results in overwhelming bias&#8221; and now I&#8217;m trying to put together a time-line. Mind you, I knew this meme was out there, but since there has never been any convincing evidence the march of the thermometers actually caused any large  bias [...]]]></description>
		<link>http://rankexploits.com/musings/2010/timeline-of-the-march-of-the-thermometers-meme/</link>
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		<title>March First Haiku</title>
		<description><![CDATA[Say hello to march
Brave daffodils show green tops,
soon yellow flowers.

Anthony discussed daffodils not yet blooming in England. Mine aren&#8217;t blooming yet either.  I don&#8217;t have any idea how early they bloomed in April.  
]]></description>
		<link>http://rankexploits.com/musings/2010/march-first-haiku/</link>
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		<title>A simple model for spatially-weighted temp analysis</title>
		<description><![CDATA[Inspired by Tamino&#8217;s recent efforts at producing a spatially-weighted analysis of temperatures from GHCN stations, I decided to make my own and &#8220;Open Source&#8221; it. While its currently written in STATA (the statistics software that I use for work), I&#8217;d be happy to work with anyone to port it to R or any other language [...]]]></description>
		<link>http://rankexploits.com/musings/2010/a-simple-model-for-spatially-weighted-temp-analysis/</link>
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		<title>Anti-Spam: New Plugin.</title>
		<description><![CDATA[My &#8220;spam&#8221; box has been filling lately, and the spam plugin has also been making lots of mistakes.  To reduce spam, I&#8217;ve added a new plugin: Comment E-Mail Verification.
Supposedly, if you have previously posted comments, you will not notice anything. If you have not previously posted a comment, the plugin will send an email [...]]]></description>
		<link>http://rankexploits.com/musings/2010/anti-spam-new-plugin/</link>
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		<title>Bump! New thread for Station Drop Out Analyses.</title>
		<description><![CDATA[Zeke asked for a new thread for station drop out analyses. 
In that thread, Zeke described a  simple model to spatially grid and weight temperature data, and has asked for help improving it&#8221;
The latest source code is available here: 
The folder name is Temp_Analysis v0.3.zip.
It should easily support importing either GHCN or USHCN data [...]]]></description>
		<link>http://rankexploits.com/musings/2010/bump-new-thread-for-station-drop-out-analyses/</link>
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		<title>Chile earthquake kills 76 and triggers tsunami</title>
		<description><![CDATA[The first email I read this morning announced the earthquake in Chile.  It hit 8.8 on the Richtermoment magnitude scale and triggered a tsunami.  The reports I read say at least 76 dead. Those of you who pray, pray it won&#8217;t be many more. For news: Times Online,hawaii247 and Reuters.
]]></description>
		<link>http://rankexploits.com/musings/2010/chile-earthquake-kills-76-and-triggers-tsunami/</link>
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