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Determination of rainfall duration statistics for rain‐out models from daily records
Author(s) -
Alexander K.
Publication year - 1981
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr017i003p00521
Subject(s) - statistics , variance (accounting) , maximum likelihood , mathematics , environmental science , fraction (chemistry) , meteorology , climatology , geography , geology , accounting , organic chemistry , business , chemistry
We discuss two methods by which the parameters of a simple model of the occurrence of rainy and dry episodes can be estimated from data. We first apply the method of moments to the mean and variance of the fraction of a fixed time period during which it is raining. The second method derives maximum likelihood estimates from observations of the weather at regular intervals.