Cloud cover such as the Amazon Rainforest and some others are almost always clear such as the Sahara Desert. Cloud cover Cloud cover (also known as cloudiness, cloudage, or cloud amount) refers to the fraction of the sky obscured by clouds when observed from a particular location. Okta is the usual unit of measurement of the cloud cover. The cloud cover is correlated to the sunshine duration as the least cloudy locales are the sunniest ones while the cloudiest areas are the least sunny places. The global cloud cover averages around 0.68 when analyzing clouds with optical depth larger than 0.1. This
Tunisian units of measurement Tunisian units of measurement A number of different units of measurement were used in Tunisia to measure length, mass, capacity, etc. In Tunisia, Metric System is compulsory since 1895. A number of units were used. Some of these units were still used even in 1920s too, for example. Several units were used. The unit, Pic was used depending on the measuring object. Some of the units are given below: 1 pic Arabic = 0.488 m 1 pic Turc = 0.637 m 1 pic endazé = 0.673 cm. Dra's hendaseh,for woolen goods, was equal to 26.49 in. A number of different