cc: "Pete Lamb" <plamb@ou.edu>, jimx04@lzu.cn
date: Wed Oct 15 13:24:01 2008
from: Phil Jones <p.jones@uea.ac.uk>
subject: Re: CRU Temperature Problem
to: hjp@lzu.edu.cn

    Dear Jianping,
            The data we have for Mangya (51886) have come from CMA.
    I'm attaching a recent paper which discusses Chinese temperatures
    and possible urbanization influences.
    Reading the paper you will see that the Chinese data is a new homogenized
    station developed by Qingxiang Li from CMA. I'd suggest you contact Li.
    His email is <liqx@cma.gov.cn> . Li will have the homogeneity adjusted
    version of this series, if it needed adjusting. Send him the figure.

    From a look at the figure, it seems as though the purple series has
    been adjusted compared to the CRU version.
    Have you compared the series for 51886 with neighbouring sites in China?
    Best Regards
    Phil
   At 10:48 15/10/2008, hjp@lzu.edu.cn wrote:

     Dear Prof. Jones
     I am writing to you about the difference between CRU and CMA
     (China Meteorological Administration) surface station
     observation data for 51886 (38.15o, 90.51 o).
     We found that the increasing of this station observed
     temperature is much higher than CRU reanalysis data
     (see attached plot). Recently, Dr. Peter Lamb
     visited us and discussed this difference.
     He suggests me to send email to you about this problem
     and ask your help.  Because of human activity, I think
     the CMA observation data is right and CRU may be
     over-correction the value of temperature.
     Can you give us some suggestion for qualification
     and uncertainty of CRU as well as CMA data?
     We are looking for to hearing from you.
     Best Wishes;
     Jianping Huang
     --
     +++++++++++++++++++++++++++++++++++++++
     Dr. Jianping Huang
     Professor and Dean
     College of Atmospheric Sciences
     Lanzhou University
     Lanzhou, China, 730000
     Tel: (0931)8914282; Fax: (0931)8914278
     email: hjp@lzu.edu.cn
     [1]http://climate.lzu.edu.cn/~jhuang
     ++++++++++++++++++++++++++++++++++++++++

   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
   NR4 7TJ
   UK
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