On Tue, 29 Jan 2008 07:58:15 -0800 (PST), Steve J
wrote:

On 29 Jan, 15:13, "Chris Kidd" wrote:
It's probably been discussed before, but...

I don't think it has, but here's my thoughts....

I think that the RG with the rim flush with the ground should be in a
pit with a coarse mesh surrouding it also flush with the ground like a
huge grid - this has the effect of reducing wind turbulence IIRC.

Just remember some uni experiments to show this on Plynlimon.

But as that would tend to reduce splashing into the guage in heavy
rain, wouldn't it tend to increase the 'error' as shown by Chris's
results? Hmmm....

--
Dave