Sir Francis Beaufort
Sir Francis Beaufort (7th May 1774-17th December 1857) was born in Navan, Co. Meath. He was an Irish Hydrographer and officer in the British Royal Navy. Beaufort was the creator of the Beaufort scale for indicating wind force. From the circle representing a weather station, a stave (as in musical notation) extends, with one or more half or whole barbs. For example, a stave with 3 ½ barbs represents Beaufort seven on the scale, decoded as 32-38 mph, or a "Fresh Gale".