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Old February 24th 06, 05:21 PM posted to uk.sci.weather
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Default Stephenson screen - plan?

Dear All,

I am collaborating with a health research group in Niger, west Africa
who want to install climate stations at over 40 sites. Their budget
is limited and would appreciate a copy of a plan to construct
Stephenson Screens locally. I have looked on the Internet for such
information so far with no success and I cannot find my copy of the
Observers Handbook in case it has such a plan. If anyone can help it
would be much appreciated.

In addition if anyone has experience and tips on running a screen and
instruments in a hot dry dusty to hot wet humid (dry season/wet
season) environment please get in touch. The observers are not
meteorologists - so any thoughts or exeriences there might be useful
too.

Please reply to the group or if you prefer e-mail me
A.P.Morse AT liv.ac.uk


Thanks and Best Wishes,

Andy

Andy Morse
University of Liverpool

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from the University of Liverpool

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Old February 24th 06, 05:54 PM posted to uk.sci.weather
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Default Stephenson screen - plan?


"Andy Morse" wrote in message
...
Dear All,

I am collaborating with a health research group in Niger, west Africa
who want to install climate stations at over 40 sites. Their budget
is limited and would appreciate a copy of a plan to construct
Stephenson Screens locally. I have looked on the Internet for such
information so far with no success


.... unfortunately you have used the wrong name: it's STEVENSON screen.
Put that phrase into a search engine (I've just checked in Google) and
you will come up with plenty of entries ... here is just one:

http://home.surewest.net/twitham/wx200d/data/shade.html

Martin.



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Old February 24th 06, 06:20 PM posted to uk.sci.weather
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Default Stephenson screen - plan?


"Martin Rowley" wrote in
message ...
.... this might also be of interest, though I'm not sure how it would
stand up to the conditions you are planning to deploy them in.

http://weather.overflow.net.au/station/stevenson.html

Martin.


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Old February 24th 06, 07:02 PM posted to uk.sci.weather
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Default Stephenson screen - plan?

.... and if you don't manage to find one on the web, please contact me -
I have a copy of the construction plans (last published in, I think,
1938) which my father-in-law used to construct one for me in 1993 - I
can let you have a photocopy.

Stephen

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Old February 24th 06, 09:21 PM posted to uk.sci.weather
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Default Stephenson screen - plan?

Andy Morse wrote:

I am collaborating with a health research group in Niger, west Africa
who want to install climate stations at over 40 sites. Their budget
is limited and would appreciate a copy of a plan to construct
Stephenson Screens locally. I have looked on the Internet for such
information so far with no success and I cannot find my copy of the
Observers Handbook in case it has such a plan. If anyone can help it
would be much appreciated.

In addition if anyone has experience and tips on running a screen and
instruments in a hot dry dusty to hot wet humid (dry season/wet
season) environment please get in touch. The observers are not
meteorologists - so any thoughts or exeriences there might be useful
too.


What's the full list of instruments involved?

There's a few tricks I've learned from living in the inland tropics,
such as adding a thymol crystal to the wet bulb reservoir, but I'd
also wonder if *Stevenson* screens and traditional instruments are the
way to go.

Unless you're looking to train met observers and cabinet makers, any
of the modern automatic weather stations can provide a full range of
observations of acceptable accuracy (but not necessarily to met bureau
standards) for what is probably a lot less than the cost of a screen
(even where labour is cheap). And a lot less upkeep.

--
John H


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Old March 2nd 06, 11:18 AM posted to uk.sci.weather
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Default Stevenson scrren Stephenson screen - plan?

Dear All,

Firstly, thanks for the helpful replies and secondly, apologies for
the misspelling of Stevenson.

On the use of more modern equipment e.g. small self contained loggers
of T and RH is something I have thought about but am still unsure how
this would work operationally in the context faced by my partners in
Niger.

I would still welcome any further comments on operating traditional
screen instruments e.g. T dry and T wet and max. and min.
thermometers in a tropical context.

Best Wishes,

Andy

On Fri, 24 Feb 2006 18:21:29 +0000, Andy Morse
wrote:

Dear All,

I am collaborating with a health research group in Niger, west Africa
who want to install climate stations at over 40 sites. Their budget
is limited and would appreciate a copy of a plan to construct
Stephenson Screens locally. I have looked on the Internet for such
information so far with no success and I cannot find my copy of the
Observers Handbook in case it has such a plan. If anyone can help it
would be much appreciated.

In addition if anyone has experience and tips on running a screen and
instruments in a hot dry dusty to hot wet humid (dry season/wet
season) environment please get in touch. The observers are not
meteorologists - so any thoughts or exeriences there might be useful
too.

Please reply to the group or if you prefer e-mail me
A.P.Morse AT liv.ac.uk


Thanks and Best Wishes,

Andy

Andy Morse
University of Liverpool

all postings are personal
and should not be taken as formal comment or advice
from the University of Liverpool

remove the zzz from my e-mail beofre replying


Andy Morse
University of Liverpool

all postings are personal
and should not be taken as formal comment or advice
from the University of Liverpool

remove the zzz from my e-mail beofre replying


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