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This posting expresses the personal view and opinions of the author.
Something which everyone on this planet should be able to do.
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As a postscript to my previous post.

I recorded 18.7 mm manually and 18.0 mm on my Davis VP.
Both instruments are set up OK (ie level, away from obstructions etc).
The quoted accuracy on my Davis for rainfall is +/- 4% .
4% of 18.0 mm is 0.72 mm, so it is operating perfectly accurately within the
manufacturers specs. Also what is my error in my measuring rainfall with a
tapered measuring cyclinder ? (I like to think I'm careful but it is so easy to
make mistakes).

I must say, I am extremely pleased with the performance of the VP so far (all of
one day :-) ) and as with all scientific instruments one must be fully aware of
their limitations.

Will.
--

" A cup is most useful when empty "
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A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

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Keith (Southend) wrote in message ...
I'm curious WIll, is the 18.7mm value obtained from your new Davis VP?
The reason I ask, is I thought the metric settings accumulated
rainfall in 0.2mm increments, so I would have expected 18.6 or 18.8mm.

Looking forward to seeing some of your data "live", well evenings and
weekends :-)


Keith (Southend)

***********************
Weather Home & Abroad
http://www.southendweather.net

On Sun, 3 Oct 2004 19:16:39 +0100, "Will"
wrote:


================================================ ====================
This posting expresses the personal view and opinions of the author.
Something which everyone on this planet should be able to do.
================================================ ====================

1900 3/10/04

Rainfall now stands at 18.7 mm for this event, so nothing severe (or even
heavy)
yet.
Still continuous moderate, occasionally heavy rain, however.

Wind still light to moderate with max gust of just 22 knots.
Took a wet walk up to 450m this afternoon and wind only force 4-5 occasionally
6
up there.

Long way to go yet though.

Will.