Hi Jack,
On 12/1/09 1:08 PM, Jack Glendening wrote:
> Can any non-US meteorologists comment on whether there is a metric
> "meteorological standard" for wind barb display of wind speed? I'm
> getting one (non-US) person telling me that wind barbs always
> represent 5 knots, even in countries where winds are normally given in
> kn/hr, and another telling me that is not so. Being US-oriented, I
> have no idea how wind barbs are normally represented outside the US.
I'm not non-US but I've done non-knot wind plots and will throw in my
$0.02: in my experience half-barbs, barbs, and flags are always 5, 10,
and 50 in whatever unit is being used (kts, m/s, etc.).
Having said that, I'll toss in this quote from _The Meteorological
Glossary, Third Edition, In continuation of the Weather Map_, from the
Air Ministry Meteorological Office, First American Edition (1940):
"WIND
....
Summaries of surface wind and their representation.-- By
international agreement the wind is represented on synoptic charts by
arrows pointing towards the station, with feathers to show the force; a
full-length feather represents two steps of the Beaufort scale, a short
feather one step. This practice was adopted in the Meteorological
office 9except for the 'Marine Observer') on March 30, 1936."
Cheers,
Leslie
-- Dr. Leslie M. Hartten CIRES, Univ. of Colorado email: Leslie.M.Hartten@noaa.gov 216 UCB web: http://cires.colorado.edu/~hartten Boulder CO 80309-0216 phone: (303)497-7052 fax: 497-6181 -- Disclaimer: The contents of this message are mine personally and do not necessarily reflect any position of the Government of the United States of America, the National Oceanic and Atmospheric Administration, or the University of Colorado. _______________________________________________ ncl-talk mailing list List instructions, subscriber options, unsubscribe: http://mailman.ucar.edu/mailman/listinfo/ncl-talkReceived on Tue Dec 1 15:26:05 2009
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