Abstract
IT is now widely believed by meteorologists that a certain relation exists between the solar sun-spot cycle and the air-temperature of the earth, such that to a minimum of sun-spots corresponds, approximately, a maximum of air-temperature, and vice versâ. From the comprehensive researches of Dr. Köppen on the subject some time ago, it appeared that this relation is most clearly proved in the case of the tropics, the evidence becoming less as we go north and south. Mr. Blanford showed recently in NATURE (vol. xliii. p. 583) that the evidence in the case of India has of late years greatly increased in force.
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M., A. Sun-spots and Air-temperature. Nature 45, 271–272 (1892). https://doi.org/10.1038/045271a0
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DOI: https://doi.org/10.1038/045271a0
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