Cloud cover 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 value is lower (0.56) when considering clouds with an optical depth larger than 2, and higher when
Theory of conjoint measurement magnitude of "A" per unit magnitude of "X". For example, "A" consists of masses and "X" consists of volumes, then "P" consists of densities measured as mass per unit of volume. In such cases, it would appear that one level of "A" and one level of "X" must be identified as a tentative unit prior to the application of conjoint measurement. If each level of "P" is the sum of a level of "A" and a level of "X", then "P" is the same quantity as "A" and"X". For example, "A" and "X" are lengths so hence must be "P".