La Crosse Technology WS-2510, Руководство по эксплуатации

Страница: 58 / 75

58
pressure fronts and can find out more about the path of the fronts.
However, as the weather station always displays the relative air pressure at its
location, a correction factor must be defined, which makes it possible to display
the difference between absolute and relative air pressure. This is achieved (as
with this weather station) by entering the accurately known local air pressure
(either as notified by the local meteorological office or by calculation: absolute
air pressure
±
0.11 hPa per metre of the measuring location above/below mean
sea level) or by entering directly the height of the location above sea level.
Wind strength table (Beaufort)
Beaufort
Wind speed Description
0 0 - 0.7 km/h calm
1 0.7 - 5.4 km/h slight breeze
2 5.5 - 11.9 km/h light breeze
3 12.0 - 19.4 km/h weak breeze
4 19.5 - 28.5 km/h moderate breeze
5 28.6 - 38.7 km/h fresh breeze
6 38.8 - 49.8 km/h strong wind
7 49.9 - 61.7 km/h stiff wind
8 61.8 - 74.6 km/h stormy wind
9 74.7 - 88.9 km/h storm
10 89.0 - 102.4 km/h heavy storm
11 102.5 - 117.4 km/h near hurricane storm
12 > 117.4 km/h hurricane
Units
°
F = [
°
C] * 9 / 5 + 32
°
C = ( [
°
F] – 32 ) * 5 / 9
mmHg = [hPa] * 0.75006
inHg = [hPa] * 0.02953
m/s = [km/h] / 3.6 = [km/h] * 0.27778
knots = [km/h] / 1.852 = [km/h] * 0.53996
mph = [km/h] / 1.609 = [km/h] * 0.6215
in = [mm] / 25.4 = [mm] * 0.03937
ft = [m] /0.3048 = [m] * 3.28084
cu. in. = [ml] / 16.387 = [ml] * 0.061024