On 5 Jun, 04:42, Dave Ludlow
wrote:
One thing I didn't think of when I made that first check was the
screen type - it appears to be a half-size Stevenson Screen (probably
made of wood) i.e. one designed, I think, for electronic instruments.
I'd imagine that half-size screens are slightly more susceptible to
the effects of solar radiation in light winds than full size screens
i.e. those designed for a full set of manually read instruments.

Hi, Dave,

My Stevenson Screens are the same as that one, as are a lot more in
the observing sector. They are all acceptable to the Met O. and hold
a full set of manual instruments with plenty of room to spare.
The Copley screens do not seem to suffer from over heating!
I think the problem is probably the close proximity of the white
buildings and I would hope that the Met O do not take the readings too
seriously.
Sites like this, and a few more I know, will certainly help the GW
enthusiasts!!

Ken
Copley 253metres asl, nr Barnard Castle, Teesdale, County Durham
http://copley.mysite.orange.co.uk