Optimum summer index and average potential water deficit.

Published online
11 Jan 1971
Content type
Journal article
Journal title
Journal of Applied Ecology
DOI
10.2307/2401375

Author(s)
Davis, N. E.

Publication language
English

Abstract

Optimum summer index is based on the formula I = 10Tx + 20S-7R where Tx is mean daily temperature (°F), 5 mean daily sunshine (h) and R is total rainfall (in.) during June, July and Aug. The index was found to be closely correlated with potential water deficit, which could be estimated using the formula d = (1/100-5)2.-R.B.

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