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
Money measurement concept Money measurement concept The money measurement concept underlines the fact that in accounting and economics generally, every recorded event or transaction is measured in terms of money, i.e., the local currency monetary unit of measure. Using this principle, a fact or a happening or event which cannot be expressed in terms of money is not recorded in the accounting books. Thus, it is not acceptable to record such non-quantifiable items as employee skill levels or the quality of customer service. One of the basic principles in historical cost accounting is "The Measuring Unit principle" (or stable measuring unit assumption): The