A computer assisted learning package for flood frequency analysis with the Gumbel distribution

Abstract

A Computer Assisted Learning (CAL) package has been developed for use on an IBM/PC/XT/AT or compatible machine equipped with a Color Graphics Adapter (CGA). It provides brief descriptions of

• 1.

  (i) important properties of the Gumbel distribution,

• 2.

  (ii) good methods for estimating its parameters and related solution procedures,

• 3.

  (iii) techniques for evaluating the goodness-of-fit, and

• 4.

  (iv) needed formulas for calculating the T-year event and its variance (or standard deviation).

All the methods/techniques described have been translated into corresponding subroutines included in the package to make it readily suitable for practical applications in flood frequency analysis. Depending on his technical knowledge, the user can use the package for learning all the important concepts, for data analysis alone, or for simulation studies.

The paper describes the characteristics of the package and how it is used through some illustrative examples.