The message
from Terry Fields contains these words:

http://hadobs.metoffice.com/hadcrut3...download.html?

If you can find out what it all means. :-)

I've worked out that 1.0000000E+30 means 'data missing'....

.....but not a lot else :-(

The best hope might be to find the actual data needed on a blog, but
that seems to be just as obscure....

I am some way into extracting approximate figures from the graph. Do you
have a valid email address I can send it to?

--
Roger Chapman