(Article of periodic en Anglais - 1992)

Document title

Precipitation statistics for geomorphologists: variations on a theme by Frank Ahnert

published at : Functional geomorphology. Landform analysis and models

Authors(s) and Affiliation(s)

COX N.J. ;


A method proposed by Ahnert for magnitude-frequency analysis amounts to fitting an exponential distribution: the parameters can be specified directly as the sample mean and the known minimum value. When applied to precipitation data, the most obvious comparison is with the more general gamma distribution: although fitting is technically more awkward, methods publicised here allow estimation of parameters by maximum likelihood and computations for probably plots. The exponential my be a good approximation to the upper tail of a gamma distribution. The gamma distribution reduces difficulties with outliers and curvature


Thematical fascicle

published at : Catena. Supplement / ISSN 0722-0723

Editor : Catena-Verlag Rohdenburg, Cremlingen - ALLEMAGNE (1982)

Millesime : 1992, no 23 [pp. 189-212]

Bibliographic references : 55 réf.




Laboratoire INTERGEO - Paris

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1994.
Refdoc record number (ud4) : 6443456 : Permanent link - XML version
Powered by Pxxo