On Monday, February 17, 2014 11:53:30 PM UTC, Alastair wrote:
"Len Wood" wrote in message

...

On Monday, February 17, 2014 8:02:17 PM UTC, Alastair wrote:







=============================================



AFAIK The Met Office UK statistics, which are based on official weather



stations readings, only run from ~1910.



=============================================







Hope this helps,







Cheers, Alastair.

-------------------------------------------------------------------------------

Martin Rowley told me

'The 'national series' is a UK-wide, gridded dataset that only extends

back to 1910'.

So it's been massaged to give an areal average. I don't much like raw data

being messed about like this but I suppose no there no alternative.



Len

Wembury



But isn't the CET just a massaged set for a (small) region of the UK? OTOH,

it is longer but is it accurate?



Cheers, Alastair.

I recommend you read the article by Mike Kendon and Dan Hollis in Weather, Feb 2014, p37-41, concerning areal averages and anomalies and the pitfalls.

There is a difference between volume anomalies and map anomalies.

Len
Wembury