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Periodicity in Weather and Crops

Naturevolume 105pages370371 (1920) | Download Citation

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Abstract

IT is generally understood that the principal source of terrestrial weather changes is to be found in-solar radiation. Inasmuch, therefore, as the yield of crops depends very largely on the weather, it is quite natural to assume that any periodicity in the solar radiation is likely to be reflected in the world-harvests and the price of food. Many investigations have had for their object the testing of a direft correlation between solar activity, as evidenced by sun-spots, and such terrestrial phenomena as the Indian monsoon in regard to drought and famine. The mechanism of world-weather is exceedingly complex, but progress is steadily being made in elucidating the cause of the numerous departures from obedience to any simple general law.

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https://doi.org/10.1038/105370b0

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