geostrophic-wind scale

A graphical device used for the determination of the speed of the geostrophic wind from the isobar or contour-line spacing on a synoptic chart; it is a nomogram representing solutions of the geostrophic-wind equation.

Related terms:

• geostrophic-wind level
• geostrophic departure
• NRM wind scale
• geostrophic wind
• geostrophic equation
• Beaufort wind scale
• wind-direction shaft
• geostrophic distance
• maximum-wind and shear chart
• thermal wind equation