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Five-year climatic trend in the Northern Hemisphere


RESULTS reported by Starr and Oort1 reflect changes which have occurred in the instruments, in the methods used at the observing stations to interpret radiosonde measurements, and from the setting up of new stations, rather than from real geophysical changes.

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  1. 1

    Starr, V. P., and Oort, A. H., Nature, 242, 310–313 (1973).

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