Abstract
SIR NAPIER SHAW'S representation of upper air temperatures by the method of the T-φ or tephigram is, from the thermodynamical aspect, the best that has yet been proposed. The depegram (or graph of dewpoint temperatures), which ordinarily accompanies it, is a practical means of representing humidity, yet most meteorologists will agree that it is not as wholly satisfying a method for humidity as the tephigram is for temperature. A thermodynamic indication of humidity along with the tephigram is of importance, especially in the tropics, and further consideration of the mode of representing humidity is therefore desirable.
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Cf. Ind. Met. Mem., 23, part 1.
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NORMAND, C. Graphical Indication of Humidity in the Upper Air. Nature 128, 583 (1931). https://doi.org/10.1038/128583a0
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DOI: https://doi.org/10.1038/128583a0
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