> "Last month was the wettest June the UK had seen since detailed
> records began in 1914."
>
> That's only a 93 year data series, rather than the 241 years available
> for England and Wales (where the June record of 1860 still stands).
>

Some background here: http://www.climate-uk.com/page5.html

> > Now, add in the fact that the values are calculated from spot
> > measurements, and the second highest may well have been the highest in
> > reality.
>
> Yes, past records may have been overlooked due to poor spatial
> coverage missing the highest rainfall areas.
>

TBH I have no idea. I know that they very nearly lost the entire
rainfall series after a hardware change in the '80s/90s, and I did
some work on the move a newer, more robust, database in the early
'90s, but have had no connection with it since. Which is a shame
otherwise I'd have a direct access to the data and be able to talk to
the people responsible for the series.

> If 200 year events now regularly happen within 10 years, we've got a
> very strong signal in the data making detection and attribution an
> easier task. If we have thousands of data series, it's not that
> surprising to find a few where two 200 year events happen within 7
> years of each other.

True, but we are looking at regions here, rather than cities so the
numbers of series involved would not necessarily be that high. That
said I do take the point (in fact I think I made it) that it's still
too early to draw a conclusion.

>
> I am also happy enough to accept that the average summer might get
> drier, but the number of wet outliers simultaneously might go up
> sufficiently to compensate. But is that actually predicted?

Here's where I read it:

www.metoffice.gov.uk/research/hadleycentre/pubs/brochures/2005/clim_green/slide44.pdf

It's a little ambiguous and there are caveats there. I admit that I
should get round to tracking down the original paper...but then it'd
just get added to the "to be read" pile.

I think the UK impacts study of 2004 (forget it's proper title) also
discusses it.


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