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Category: global climate change

Satellite Trends for TLT

10 March, 2010 (10:58) | global climate change

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 [...]

Paul Dennis’ Blog

9 February, 2010 (07:31) | global climate change

Paul Dennis of University of East Anglia has started a new blog called Harmonic Oscillator. I’ve added this to my blogroll and encourage you to visit a time or two over the next few weeks.
Good luck Paul!

HadCrut Compared to IPCC Simulations Ending Dec. 2009.

1 February, 2010 (16:57) | Climate models

In a previous post, I reported trend analysis of the difference between GISSTemp observations and the model mean projection for surface temperatures from simulation from IPCC models extended into the 21st century using the A1B scenario tell us we should reject the hypothesis that the model mean simulation agrees with the observations reported by [...]

Tricking yourself into cherry picking.

15 October, 2009 (11:30) | Climate models

Did you know you can cherry pick without knowing it? It works like this:

You speculate there “some trees” are temperature proxies, but “other trees aren’t. (So far, you’re actually ok.)
Then, instead of trying to do a real calibration study to discover what sorts of trees are temperature proxies and which aren’t, you just [...]

Adding Apples and Oranges to Cherries.

13 October, 2009 (10:57) | Climate models

Recently, Chip Knappenberger commented on some cherry picking by both Richard Lindzen and the fellows over at RC. Roger commented. I’m posting to add my two cents, focusing on two points:

Observing that RC may have mixed an apples to oranges comparisons into their cherry pie.
Evaluating a suggestion by Gavin’s that [...]

Rio Gets the Olympics!

2 October, 2009 (14:11) | global climate change, politics

Obama, Oprah, Michelle, and Mayor Daley all tried their best. But Rio will host the 2016 Olympics. I suspect this will please as many Chicagoans as it displeases.

Temperatures of the Tropical Troposphere: Chad brings Santer up to 2008.

26 September, 2009 (07:01) | Climate models

Have you been following the Douglas vs. Santer bout? Do you remember the blog controversies that asked “Why did Santer stop analysis at December 1999 when Douglas ran analyses through 2004?” Have you been hoping someone would get TLT data we can compare to UAH and RSS? (Yes, I mean you VG.)
Well, Chad decided [...]

El Nino Report: Models still predicts “moderate” to “strong”

10 September, 2009 (08:56) | Climate models

El Niño is still present, but it hasn’t yet turned into the “El Niño of the Baskervilles” one might have worried about based on Joe Romm’s rather excited prose earlier this summer. This is the introduction from NOAA’s latest monthly update with some bits highlighted:
A weak El Niño continued during August 2009, as sea [...]

Arthur’s Case 2 (I think)

8 September, 2009 (10:25) | Climate models

Arthurs Case 2
In comments, Arthur requested I post my graph of the ocean and air temperatures obtained by integrating his “Case 2″ so we could compare our graphs. To permit comparison, he also posted his graphs of ocean and air temperature obtained integrating his “Case 2″ data using a different method. (In that [...]

Graphs of Arthur’s Case 1 (I think).

3 September, 2009 (15:02) | Climate models

I was wanted to show graphs illustrating the temperature series for the “atmosphere” and “ocean” for
Arthur’s “Case 1″ & “Case 2″ solutions, which he says correspond to a 2 box model that he deems a reasonable representation of the earth’s atmosphere. Round off error was causing me some difficulties; but Arthur kindly provided [...]