Abstract
The depth-duration characteristics of short time increment (10 min. and hourly) rainfall sequences are investigated in the present paper. The basic objectives of the study are to investigate the models proposed for storm depths and durations and to investigate the effect of different time scales on modelling the process. Both regression and bivariate probability distribution models are used in the study. Hourly and 10-minute rainfall measured at Lafayette, Indiana are used in the study. The following principal results are obtained from the study. Regression models for storm depth-duration relationship are adequate when they are used with appropriately classified storms. Significant differences and some surprising similarities are found in the characteristics of short time increment rainfall processes in different climatic regions. Finally, the characteristics of the 10 minute and hourly data are quite similar to each other.
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