EXPERIMENTS ON THE STIMULATION OF CLOUDS TO PRODUCE RAIN

Abstract

IN 1933 Bergeron1 postulated that rain falls only from clouds which contain both water drops and ice crystals. Natural cumulus clouds at temperatures above -13° C. often contain only supercooled water drops and no icecrystals. If a method existed of planting crystal 'germs' in these clouds, the crystals would grow into large snowflakes at the expense of the water drops and eventually fall as rain or snow.

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References

  1. 1

    Union Géodesique et Géophysique International (Lisbon, 1933).

  2. 2

    Science Newsletter, Washington (November 23, 1946).

  3. 3

    Volmer, "Kinetik der Phasenbildung", reprinted by Brothers Edwards, Arbor Ann, Michigan .

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KRAUS, E., SQUIRES, P. EXPERIMENTS ON THE STIMULATION OF CLOUDS TO PRODUCE RAIN. Nature 159, 489–491 (1947). https://doi.org/10.1038/159489a0

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