I’ve moved to WordPress: http://bobtisdale.wordpress.com/

Tuesday, November 25, 2008

Another Global Temperature Blunder? Or RealClimate Confusion

I’ve moved to WordPress.  This post can now be found at Another Global Temperature Blunder? Or RealClimate Confusion
#################
On the recent RealClimate thread Mind the Gap!, Rasmus discussed the confusion over global temperature trends. Maybe if he had checked his graphics before he posted them, he might have helped his cause. The mistake:

The second graphic on the RealClimate thread is shown in Figure 1.
http://i38.tinypic.com/ngo6te.jpg
Figure 1

The end of the RealClimate caption for that figure reads: “(click on figures for PDF-version)”. I clicked and was presented with the graphic shown in Figure 2. The link:
http://home.broadpark.no/~rbene/twotemps.pdf

http://i37.tinypic.com/ehwtuh.jpg
Figure 2

Notice a difference? In Figure 3, I’ve shown the two time-series graphs. They are NOT the same.
http://i34.tinypic.com/2rcpspd.jpg
Figure 3

In Figure 4, I’ve shown the two pairs of coverage maps. They are NOT the same.
http://i33.tinypic.com/352ok04.jpg
Figure 4

I discovered the error at 4:31PM on November 25, 2008, then checked to see if any of the 270+ comments made to that time had mentioned it. (No, I didn’t read all the comments; I simply let Internet Explorer search for “pdf”.) In comment 254, blogger Glen Fergus noted the error at 12:14AM on November 25, 2008, but as of the time I found it, they had not corrected it, obviously.

2 comments:

Anonymous said...

Can you point out the differences? The globe on the right seems different because it has been resized to match the images on the left. What else is different?

Bob Tisdale said...

Compare top to bottom, left-hand side of Figure 4. The coverage on the top map is much less than the lower map, because the top map appears to exclude the oceans where the bottom map includes them. They are different illustrations.

Donations

Tips are now being accepted.

Blog Archive

Comment Policy, SST Posts, and Notes

Comments that are political in nature or that have nothing to do with the post will be deleted.
####
The Smith and Reynolds SST Posts DOES NOT LIST ALL SST POSTS. I stopped using ERSST.v2 data for SST when NOAA deleted it from NOMADS early in 2009.

Please use the search feature in the upper left-hand corner of the page for posts on specific subjects.
####
NOTE: I’ve discovered that some of the links to older posts provide blank pages. While it’s possible to access that post by scrolling through the history, that’s time consuming. There’s a quick fix for the problem, so if you run into an absent post, please advise me. Thanks.
####
If you use the graphs, please cite or link to the address of the blog post or this website.