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PLOTTING FORMULA FOR FLOOD FREQUENCY 1
Author(s) -
Adamowski K.
Publication year - 1981
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1981.tb03922.x
Subject(s) - weibull distribution , mathematics , selection (genetic algorithm) , statistics , flood myth , frequency distribution , distribution (mathematics) , calculus (dental) , mathematical analysis , computer science , geography , medicine , archaeology , dentistry , artificial intelligence
In flood frequency analysis it is required to estimate the values of probabilities based on plotting formula. All of the many existing formula provide different results, particularly at the tails of the distribution. The existing practice in selection of a particular formula is rather arbitrary; and often Weibull's formula is recommended, which provided biased and conservative results. Based on the mean square criterion, a new plotting formula is developed, and it is given by F m = (m ‐ 0.24)/(N + 0.5).