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Een statistisch problaem in de Klimatologie

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  • C. Levert

Abstract

Summary (A statistical problem in Climatology). The Climatological Section of the Royal Meteorological Institute of the Netherlands was asked to solve the following problem: Is the decrease in the quantity of precipitation along the eastern border of the Noord‐Oost‐polder of the Zuider‐Zee since reclamation in 1942, significant? The data from the stations at Lemmer and Kampen have been statistically analysed. The results of this analysis may be interpreted as follows: if the change is a real one, it is overshadowed by the well known fluctuations of chance. In the course of the computation two questions arose: speaking generally a. when altered circumstances produce a certain change in the true value of the phenomenon, how many measurements have to be made in order to prove this change to be significant? and b. being able to make only a certain number of measurements, what is the minimum real change in the phenomenon which can be proved to be significant? The theory developed in this article and verified by numerical climatological data may well be generalised and may then be useful in other branches of applied science.

Suggested Citation

  • C. Levert, 1948. "Een statistisch problaem in de Klimatologie," Statistica Neerlandica, Netherlands Society for Statistics and Operations Research, vol. 2(3), pages 107-119, June.
    • Handle: RePEc:bla:stanee:v:2:y:1948:i:3:p:107-119
    DOI: 10.1111/j.1467-9574.1948.tb00360.x
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