Wednesday, November 30, 2011

0241.txt

date: Tue, 6 Feb 2001 15:26:12 +0000 (GMT)
from: David H Lister <D.ListeratXYZxyz.ac.uk>
subject: Re: Problem with UK surface daily files (fwd)
to: t.osbornatXYZxyz.ac.uk

Tim

Here is the rapid response from BADC. Could this cause problems for us?

David

---------- Forwarded message ----------
Date: Tue, 06 Feb 2001 15:00:59 +0000
From: BADC Support <badcatXYZxyzac.uk>
To: David H Lister <D.ListeratXYZxyz.ac.uk>
Subject: Re: Problem with UK surface daily files

Dear David,

Thank you for your message.
I think the following information will clarify the whole problem!!! Please
check the page:

http://www.badc.rl.ac.uk/data/surface/count.html

As you can see from this page, the surface data now held at the BADC does not
use the throwback (this is the method (not to use the throwback) now used by
the Met Office to store their data) . This is the reason why all the data
appear to be shifted by one day!

Please let me know if this concept is still a bit obscure.

Kind Regards,

Anabelle Menochet


David H Lister wrote:

> Dear Reader,
>
> I recently registered with you so that I could update our daily met.
> (climate) files. I have been accessing the "Met Office Land Surface
> Station Observations" for the UK. I have worked with UK "climate" files
> taken from your site by other users (here at the Climatic Research Unit)
> but I have not obtained files from you directly before.
>
> I think that there is a problem with the daily synchronisation in your
> current *.drain files for some or all stations. The checks that I have
> done include comparisons of daily rainfall amounts from old files for the
> same location/time and comparisons with monthly rainfall totals from an
> independent source. I know that this does not prove that your current
> *.drain files have a problem but, as far as I can tell, our old files are
> okay.
>
> Your daily values occur one day later than that shown in our old records.
> If I am correct is identifying a real problem - could it be related to the
> convention of allocating rainfall recorded at 0900hrs to the previous day?
>
> I attach one of our old climate files (compressed) for Carlisle Met.
> Office. Column 10 holds daily rainfall amounts. I have not checked the
> synchronisation of other variables. I hope that you will be able to see
> what I am getting at.
>
> Please let me know whether or not there is a real problem.
>
> David Lister
>
> ***************************************************************************
> David Lister
> Climatic Research Unit
> University of East Anglia
> NORWICH NR1 7TJ
> United Kingdom
>
> Telephone +44 (0)1603 593818
> Fax +44 (0)1603 507784
>
> CRU web site http://www.cru.uea.ac.uk/
>
> ------------------------------------------------------------------------
> Name: carlisle.dly.Z
> carlisle.dly.Z Type: unspecified type (APPLICATION/octet-stream)
> Encoding: BASE64

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