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GISS Global temperature anomaly – coldest March since 2000
Posted By admin On April 15, 2009 @ 3:21 am In Sci Tech | Comments Disabled
Watts Up With That? 
Wednesday, April 15, 2009
While I have reservations about the GISS dataset due to the many adjustments it endures, the GISS global temperature anomaly data  for March 2009 has been published.
The March 2009 global anomaly is 0.47 °C, making it the coldest March since the year 2000.
As Luboš Motl  points out:
That is also colder than March 1990 and 1998, That puts March 2009 out of the “top ten”. Also, the March 2009 global mean temperature differed by 0.03 °C only from the March 1981 figure – from a month when the ENSO/ONI index was pretty much equal to the current value. This cherry-picked monthly comparison would suggest that there may have been 0.03 °C of warming in 30 years.
Another blogger, Lucia  plotted long term GISS trends and got some interesting results.
Here they are:
(ARTICLE CONTINUES BELOW)
Well…. I’ve haven’t claimed global warming stopped or stalled in 2001. (In any case I’m not sure precisely what those terms are supposed to mean. If all they mean is temperature trends are down since 2001…. well, they are! If they mean that GHG’s don’t tend to cause warming and warming won’t resume… Well, the data don’t mean that.)
While GISS went up a tiny bit, from 0.41 in February 09 to 0.47 °C in March 09, you could figure that .06 °C to be essentially unchanged month to month and part of the “noise”. The lack of any real increase in trends since 2001 is the most interesting part of the GISS story.
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URL to article: http://www.prisonplanet.com/giss-global-temperature-anomaly-coldest-march-since-2000.html
URLs in this post:
 Watts Up With That?: http://wattsupwiththat.com/2009/04/14/giss-global-temperature-anomaly-coldest-march-since-2000/
 the GISS global temperature anomaly data: http://data.giss.nasa.gov/gistemp/tabledata/GLB.Ts+dSST.txt
 Luboš Motl: http://motls.blogspot.com/2009/04/giss-march-2009-coolest-march-in-this.html
 Lucia: http://rankexploits.com/musings/2009/giss-out-deep-climates-talking-point/
 Image: http://rankexploits.com/musings/wp-content/uploads/2009/04/gisstemplongtrends.jpg
 Image: http://www.efoodsdirect.com/products.html
 Pielke Senior: NASA GISS Inaccurate Press Release On The Surface Temperature Trend Data: http://www.prisonplanet.com/pielke-senior-nasa-giss-inaccurate-press-release-on-the-surface-temperature-trend-data.html
 Newly released FOIA’d emails from Hansen and GISS staffers show disagreement over 1998-1934 U.S. temperature ranking: http://www.prisonplanet.com/newly-released-foia%e2%80%99d-emails-from-hansen-and-giss-staffers-show-disagreement-over-1998-1934-u-s-temperature-ranking.html
 Study: model in good agreement with satellite temperature data – suggest cooling: http://www.prisonplanet.com/study-model-in-good-agreement-with-satellite-temperature-data-%e2%80%93-suggest-cooling.html
 DMI polar data shows cooler Arctic temperature since 1958: http://www.prisonplanet.com/dmi-polar-data-shows-cooler-arctic-temperature-since-1958.html
 Evidence that Global Temperature Trends Have Been Overstated: http://www.prisonplanet.com/evidence-that-global-temperature-trends-have-been-overstated.html
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