date: Tue, 2 Oct 2007 18:08:51 +0100
from: Ian Harris <i.harrisatXYZxyz.ac.uk>
subject: Re: [Fwd: CRU Station Lists]
From my project notes:
Summary of Station Changes
This was effected with the program 'findchanges.for', which
categories of station - those added, those changed, and those
the entire process (ie comparing the original station file with the
yielded the following counts:
This agrees with the operations performed.
I'm attaching the first and third of these.
I think the 55 (rather than 53) comes from two stations having their
normals zeroed? Again, from my notes:
newbigfile90x.rev10.dat ** this version locked and sent to Philip
This revision incorporates the changes made as a result of gridding, and
attempting to get the 1961-1990 mean normalised data to nudge 0. The
stations were deleted in the sense that their normals were set to
606070 292 -2 -999 TIMIMOUN ALGERIA 19691974 101969
814010 55 540 4 SAINT LAURENT MARONI FRENCH GUIANA 19611990 101961
..this was because the first only has a few values, with high
the second consists of two decades of temperatures with one of missing
values in between, and the earlier decade is significantly warmer
Sorry - I don't even remember WRITING this never mind the context! I
would note that the final sentence could easily be misinterpreted;
what I should have said is that it indicated that the data was from
two disparate stations.
I can't locate a 4349 list..
Attachment Converted: "c:\eudora\attach\orig_vs_rev10.add.dat"
Attachment Converted: "c:\eudora\attach\orig_vs_rev10.del.dat"
On 2 Oct 2007, at 17:43, P.JonesatXYZxyz.ac.uk wrote:
> Harry, Philip,
> Well the arch skeptic McIntyre has found the page Mike put
> up and it wasn't enough! I expected that, but not his use of
> nice language in this email!
> Anyway, I've said I would try and do something in when
> back from Australia - not next week (as that is busy as well),
> but the week after that.
> In the meantime, can you Harry send me a list of the 4349
> stations and the 55? I've emailed Philip in case Harry
> doesn't have the 4349 list. I know Harry has the 55.
> When I get back, I can then check the 4349 and 4138 and
> find what additional stations were extracted in the 2006
> paper. I know that I took out about 35 US sites as these
> had crept back despite being deemed 'urban' in work in
> the 1980s.
> I think the rest relate to changes in Australia, Canada
> and NZ wrt station number changing and newer series.
> No rush on this.
> It is warm and sunny in Sydney. Woke at 2am, but did get 12hrs
> sleep, now have to co-ordinate this with the night-time here!
> ---------------------------- Original Message
> Subject: CRU Station Lists
> From: "Steve McIntyre" <stephen.mcintyreatXYZxyzronto.ca>
> Date: Tue, October 2, 2007 5:05 pm
> To: "'Phil Jones'" <p.jonesatXYZxyz.ac.uk>
> Dear Phil, thank you for placing the list of CRU stations online. In
> the webpage, I think that you will find that this is a good idea and
> will go some way to removing a pointless cause of criticism.
> You refer to "a look-up Table which associates some current WMO
> numbers with the earlier values we are using." This is necessary for
> the use of the list and I would appreciate it if you would either send
> me a copy of it or place this online. The online listing shows 4138
> stations (as you observe), while Brohan et al listed 4349 stations
> you also observe.) Brohan et al 2006 refers to 55 stations being
> for duplication while the current list shows a larger number. I would
> appreciate a list of the 4349 stations referred to in Brohan as
> well as
> the 55 stations then removed.
> The webpage also states: "Additional updates in near-real time (either
> monthly or annually) come directly from Australia, Canada, New
> Austria, the Nordic countries and a few others." It would be
> helpful if
> the "few others" were specifically listed or alternately could you
> me the names of these few others.
> Concurrent with the information on stations, I think that you should
> provide as complete a documentation as possible for your calculations,
> including the provision of source code, as otherwiie you will
> undoubtedly continue to have piecemeal inquiries resulting from the
> presently incomplete documentation.
> Regards, Steve McIntyre
Ian "Harry" Harris
Climatic Research Unit
School of Environmental Sciences
University of East Anglia
Norwich NR4 7TJ