In studying the economics of the spatial diversification of pastoral holdings in eastern Australia, it was found necessary to quantify the similarity between the climates of stations separated by varying distances. This was done by concentrating on the most important climatic element, namely rainfall. Simple correlations between the square roots of monthly and yearly rainfalls for 42 stations in eastern Australia were related to distance from various master stations through regression analysis. It was found that correlation decreases at a diminishing rate with distance from master station. The rate of decrease depends on direction, being generally most rapid in an E-W direction.
J. P. Anderson (Mon,) studied this question.
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