Predicting rainy seasons: quantifying the beliefs of prophets

J. A. A. Andrade and J. P. Gosling

Journal of Applied Statistics, 2011, vol. 38, issue 1, 183-193

Abstract: In general, meteorologists find it difficult to make seasonal predictions in the north-east region of Brazil due to the contrasting atmospheric phenomena that take place there. The rain prophets claim to be able to predict the seasonal weather by observing the behavior of nature. Their predictions have a strong degree of subjectivity; this makes science (especially meteorology) disregard these predictions, which could be a relevant source of information for prediction models. In this article, we regard the prophets' knowledge from a subjectivist point of view: we apply elicitation of expert knowledge techniques to extract their opinions and convert them into probability densities that represent their predictions of forthcoming rainy seasons.

Keywords: Brazilian climate; elicitation; Kumaraswamy distribution; rain prophets; seasonal weather (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1080/02664760903301168

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