date: Fri May 20 12:57:27 2005
from: Phil Jones <p.jones@uea.ac.uk>
subject: Re: CCSP meeting: confidential
to: Kevin Trenberth <trenbert@ucar.edu>, jhurrell@ucar.edu

    Kevin, Jim,
       Heard the news also from Ben and Chris at the HC Review meeting. Tom Peterson
    also emailed me to say that Roy deserves credit.
       I won't be doing any crowing, but it would be useful to find out what UAH plan to do
    re a new publication/note. I'll contact John and see what I can find out.
       Should certainly make the section of Ch 3 a lot easier to write.
    Cheers
    Phil
   At 16:12 17/05/2005, Kevin Trenberth wrote:

     Thanks Jim
     Another typical UAH response though: every time we found something, they changed the
     dataset so they could argue our findings were no longer relevant, but they did not ever
     take care of the issues.   Can I share this with a couple of others on our chapter: in
     particular David Parker is an author, but is not at your mtg.
     Kevin
     jhurrell@ucar.edu wrote:

     Dear Kevin and Phil,
      Sitting in the CCSP meeting, but I wanted to let you know of what I
     believe is really remarkable progress. And I give much credit to Roy
     Spencer.
      He has admitted UAH Tlt has a negative bias, accepting the RSS argument
     the diurnal cycle correction is of the wrong sign.
      He also has stated the Fu technique is "acceptable" especially given the
     notion of 1000-200 T as opposed to 850-300.
      The revised CCSP report will have much more on Fu, and also a new UAH
     Tlt product. The latter also means IPCC FAR draft will need to be
     revised to include the new product. Roy thinks it can be done in about 2
     weeks.
      The scientific issue of just how to do this is still up for debate. RSS
     has based the diurnal cycle corrections on CCM3; UAH will do it based on
     AMSU data. Whether their redo will result in a +.2C/decade correction
     (as implied by Mears et al.) in the tropics, or something smaller, will
     depend on this. But that it will move Tlt to a warmer trend is not in
     doubt.
      Just a quick update.  More when I return.
      Jim

     --
     ****************
     Kevin E. Trenberth                              e-mail: trenbert@ucar.edu
     Climate Analysis Section, NCAR                  [1]www.cgd.ucar.edu/cas/
     P. O. Box 3000,                                 (303) 497 1318
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   Prof. Phil Jones
   Climatic Research Unit        Telephone +44 (0) 1603 592090
   School of Environmental Sciences    Fax +44 (0) 1603 507784
   University of East Anglia
   Norwich                          Email    p.jones@uea.ac.uk
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