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Old March 19th 07, 07:16 PM posted to uk.sci.weather
Paul Bartlett Paul Bartlett is offline
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First recorded activity by Weather-Banter: Jul 2006
Posts: 93
Default Comparison between professional and amateur windspeed measurements.

In message .com,
Chris.Bee writes
Hi all

This isn't a dig at anybody (at all) but I noticed the storm
presently buffeting Denmark produced some amazing results in published
measured windspeed.

These images were lifted from the Danish national weather service
website: DMI: Dansk Meteorological Institute.

The first image shows professional measurements while the second shows
amateur measurements.

http://img63.imageshack.us/img63/2593/bvimagegw0.png

http://img53.imageshack.us/img53/569...agehomedw0.png

Could it really be said that most of the amateur figures have any
scientific value whatsoever?

Or even any real value to the amateur weather watchers themselves?

It is certainly an area where the Danish amateur meteorologist could
and should seriously improve their performance.

Any constructive thoughts?

Chris I live 1NM from RAF Cottesmore where I was S.Met.O yonks back
-their readings should be pretty good as the damn mast (I have climbed
up it too many times) is 10M above ground which is at 430FT.

I now live 400FT up in a nearby village (400FT) and have managed to get
my (VP2) anemo up to 30FT above ground level. Exposure is everything,
mine ain't bad but there are houses at the same level around me.
Results show me to be under recording by about 8% mean and 15% on gusts.

Not really much I can do about it except accept the error.

Temperature comparisons good.

HTH

Cheers
Paul
--
'Wisest are they that know they do not know.' Socrates.
Paul Bartlett FRMetS
www.rutnet.co.uk Go to local weather.
400FT AMSL 25Miles southwest of the Wash