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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged.

oktas



 
 
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  #1  
Old August 27th 04, 05:51 PM posted to uk.sci.weather
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Posts: 21
Default oktas

Hi,

Can someone give me a laymans guide to oktas , or a url to clue up on
?

rgds
Keith

  #2  
Old August 27th 04, 06:09 PM posted to uk.sci.weather
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Posts: 6,314
Default oktas

In article ,
Keith Wassell writes:
Can someone give me a laymans guide to oktas , or a url to clue up on
?


An "okta" simply means an eighth. So if there are 4 oktas of cloud, it
means that the sky is half covered. I don't believe that there's any way
of measuring the amount of cloud cover other than human judgement, but I
could be wrong.

I see that the term doesn't seem to be included in the Glossary section
of Martin Rowley's excellent FAQ:

http://homepage.ntlworld.com/booty.w...nfo/uswfaq.htm

However, it _is_ defined he

http://homepage.ntlworld.com/booty.w...htm#CloudMetar
--
John Hall
"If a man will begin with certainties, he shall end in doubts;
but if he will be content to begin with doubts,
he shall end in certainties." Francis Bacon (1561-1626)
  #3  
Old August 27th 04, 08:07 PM posted to uk.sci.weather
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Posts: 2,309
Default oktas


"John Hall" wrote in message
...
In article ,

I see that the term doesn't seem to be included in the Glossary

section
of Martin Rowley's excellent FAQ:

http://homepage.ntlworld.com/booty.w...nfo/uswfaq.htm


.... yes, I made the decision some years ago that I wouldn't put *all*
items such as this in the Glossary (or it would get too unwieldy), so
went the way of providing an index ('Alpha-Index') which you can access
via the main page for the FAQ, Glossary etc. at:-

http://homepage.ntlworld.com/booty.weather/uswfaqfr.htm

or via my 'Met' home page at:-

http://homepage.ntlworld.com/booty.weather/metindex.htm

One day I'll get around to putting a search facility on the site ....
one day ;-)

Martin.


--
FAQ & Glossary for uk.sci.weather at:-
http://homepage.ntlworld.com/booty.weather/uswfaqfr.htm


  #4  
Old August 28th 04, 09:05 AM posted to uk.sci.weather
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Posts: 135
Default oktas

Okta is another word for eighth. Observers divide the sky into eighths to
establish cloud cover. Half sky covered 4/8ths or 4 oktas

--
RICHARD CRIGHTON


 




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