Weatherlawyer wrote:
OOPS!

A knot is 2 metres per second then on the next page 80 knots is 40
metres per second.

Shouldn't that be 160m/s? Four times greater. (Or knot, as the case
may be.)


There is no problem with the FAQ as written/published.

The relevant section is this:-

" Wind speeds, where given, will be in knots (used in practical
observing / aviation forecasting) and metres/second. The relationship
between the two units is assumed to be knots=2*m/s, (etc) ...
[ http://weatherfaqs.org.uk/node/114 ]

The '*' symbol denotes 'times', thus the where a wind is originally
given in metres/second, to achieve the equivalent (but approximate)
knots, you multiply by 2.

If you want to re-write it to avoid confusion, you could write
something like .... " knots = approx. twice the value in metres/second
".

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023