date: Wed, 3 Oct 2007 17:35:38 +0100 (BST)
from: David Lister <D.Lister@uea.ac.uk>
subject: Re: China Average series from our current gridded data
to: P.Jones@uea.ac.uk

<x-flowed>
Phil,

I attach two plots - one is rural series and the other urban.  I felt the 
need to include a guide as to the numbers of station series that are going 
into the new (homogenized) areal anomalies, since these vary with time - 
in contrast to those based on your old annual series. 
You may think that the station numbers information is not required - let 
me know what your opinion is on this.

In your original listing of ideas for plots, you suggested a colour plot 
of:

"My" rural
"Their" rural
"My" urban
"Their" urban

Now that we have included the gridded anomaly series, it provides a kind 
of datum line to both of the attached plots.  Do you still think that 
there is a need for the colour comparison just listed?  It is no big job 
if it is still required.

Finer points:

You will see that the station numbers line in the rural stations plot 
starts before the plot of areal anoms. - based on the new (homogenized) 
series.  This is because I imposed a minimum threshold of 20 station 
values for there to be an areal average produced.

If there are no more changes to these analyses for the moment, I will look 
at the Armagh job tomorrow.

Cheers

David

On Tue, 2 Oct 2007 P.Jones@uea.ac.uk wrote:

>>
> David,
>   Looks OK and much as I expected.
>
> You have three lines plotted
>
> - annual as I had in 1990, so 42 sites 1954-83
> - annual from the Chinese for 1951-2004
> - annual from the current CRU grid
>
> The first 2 of these come from the 'urban' sets, 42
> originally and a few less from the Chinese.
>
>  Just need to do the same now for the above first two,
> but for the rural network(s) of 42 (or a few less).
>
>  I suspect these two will agree, but then the Chinese
> rural may not show so much warming as the gridded series
> since the mid-1980s.
>
>
>   The only other thing to do is to get HadSST2 from
> Hadobs.org and then to compute and average for the
> Chinese coastal seas. I can do this when back though as
> I have the data and the dataset.
>
> Cheers
> Phil
>
>
> Phil,
>>
>> I have produced a draft plot - looking at the rural station anomalies.  I
>> still have some checks to do so there may be changes .......
>>
>> Cheers
>>
>> David
>>
>> On Fri, 28 Sep 2007, Phil Jones wrote:
>>
>>> David,
>>>     This looks OK from 1951. Ignore the stuff before,
>>> but it is since 1951 that you want.
>>>
>>> Year , 12 months then annual
>>>
>>> Cheers
>>> Phil
>>>
>>>
>>> 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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Attachment Converted: "c:\eudora\attach\comp_ann_anoms_urban.doc"

Attachment Converted: "c:\eudora\attach\comp_ann_anoms_rural.doc"
