Titlebook: Stochastic Models of Air Pollutant Concentration; Jan Grandell Book 1985 Springer-Verlag Berlin Heidelberg 1985 Air.Markov model.Variance.

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,Conditions for E(c′(t)) = 0,In sections 4 and 6 we used the fact that E(c’(t)) = 0 under general conditions.

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Models With Dependent Sink and Source,Assume that “the environment” met by an air parcel is described by a stationary process X(t) which completely determines the sink intensity and the source strength, in such a way that . and . where . and . are deterministic functions. This approach may be realistic if the variation is induced by the movement of the air parcel.

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Proof of Formula (38),Let W. be the distance from time x to the next “shower” and W. be the distance from x to the previous one. The definitions are illustrated in Figure 8, where the crosses indicate the time of the “showers.” Note that x, y ≤ 0 while W., W. ≥ 0.

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Book 1985 He was interested in pollutants which were mainly removed from the atmosphere by precipitation scavenging. His idea was to base the calculation on statistical models for the variation of the precipitation i~tensity and not only on the average precipitation intensity. In order to illustrate the impo

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The Variance of the Concentration,dell (1982) considered the case with random sink and deterministic source. Baker et al. (1979) also considered the “inverse” case with deterministic sink and random source. Lozowski (1983) considered the case where both the sink and source are independent and random.