Okta Okta In meteorology, an okta is a unit of measurement used to describe the amount of cloud cover at any given location such as a weather station. Sky conditions are estimated in terms of how many eighths of the sky are covered in cloud, ranging from 0 oktas (completely clear sky) through to 8 oktas (completely overcast). In addition, in the SYNOP code there is an extra cloud cover indicator '9' indicating that the sky is totally obscured (i.e. hidden from view), usually due to dense fog or heavy snow. When used in weather charts, okta measurements are shown by
Yoke (unit of measurement) land between the chalk ridges of the North and South Downs, was covered in ancient broadleaf forest but there are indications that much of what is now Penshurst had been cultivated clearings since Roman days. The Romans left no tangible relics although we have a record of their measurement for land in the "Yokes" of Chested, Vexour, Chafford etc. The yoke is the old Roman "jugerum", about 25 ares or 0.625 acres. This word has survived only in Kent. One theory is that the Jutes conquered Kent, whereas the Angles and Saxons (c 450 AD) settled over the remainder of