Friday, March 23, 2012


date: Thu, 21 May 2009 14:19:44 UT
subject: Review Received by Geophysical Research Letters

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(F2.74; B3.07; Q3.07) Date: Thu, 21 May 2009 14:19:44 UT Message-Id: <1912429155841@gems>
Dear Dr. Jones:
Thank you for your review of "How Will Earth's Surface Temperature Change in Future
Decades?" by Judith Lean and David Rind [Paper #2009GL038932], which we have safely
received. A copy of this review is attached below for your reference.
Thank you for your time and effort!
Anne Mueller
Geophysical Research Letters
Science Category: Science Category 2
Presentation Category: Presentation Category B
Annotated Manuscript: No
Anonymous: Yes
Referrals: No
Confidential Referrals:
Highlight: No
Formal Review:
Second Review of Lean/Rind
Most of my comments have been dealt with adequately. I've spotted only a few minor things
this time.
1. At the top of p2 (line 1) it would be good to refer to Easterling and Wehner (2009)
after the word decade. This paper has only recently come out, but it is very relevant to
the point here. It is also relevant to the discussion in the Results section on p3, lines
21-26. Easterling and Wehner also show that in future GCM simulations there are periods of
a decade in the future where little warming occurs.
2. On p3 (line 21) the format has gone awry, perhaps in the making of the pdf. What you are
doing here is using the global average and the gridded data from HadCRUT3. You just need to
say HadCRUT3v - exactly in this way. You seem also to have got the global average, but this
would seem to be superfluous information. The dataset name is what is important.
3. p4, line 12, I think 1978-79 should be 1997-98, unless you've discovered a hitherto
unknown ENSO event!
4. This same paragraph would be clearer if some of the text was moved around. The model
fitting period of 1970-99 seems key information that should be earlier. You then plot
everything from 1980-2008. Is there a reason why you look how well the model works for
2001-2005 and not for 2001-2008? Is one of the factors not yet available?
5. Glad to see that you've dropped reference to European winter warming from volcanic
events. What matters here is what the real world says. Do look at the long European winter
series some time!
6. Finally, maybe you need to supply the origins of the phrase 'past is prologue'. It is an
interesting source. I can see Chinese scientists perplexed when they find out what prologue
Easterling, D.R. and Wehner, M., 2009: Is the climate warming or cooling? Geophys. Res.
Letts. 36, L08706, doi:10.1029/2009GL037810.

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