Okta to traditional approaches, satellite images do not account for cloud composition. Oktas are often referenced in aviation weather forecasts and low level forecasts: SKC = Sky clear (0 oktas); FEW = Few (1 to 2 oktas); SCT = Scattered (3 to 4 oktas); BKN = Broken (5 to 7 oktas); OVC = Overcast (8 oktas); NSC = nil significant cloud; CAVOK = ceiling and visibility okay. 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
Theory of conjoint measurement All three must therefore be expressed in the same unit. In such cases, it would appear that a level of either "A" or "X" must be tentatively identified as the unit. Hence it would seem that application of conjoint measurement requires some prior descriptive theory of the relevant natural system. Empirical applications of the theory of conjoint measurement have been sparse (; ). Several empirical evaluations of the double cancellation have been conducted. Among these, evaluated the axiom to the psychophysics of binaural loudness. They found the double cancellation axiom was rejected. conducted a similar investigation and replicated Levelt, "et