Abstract
The advantages of incorporating variable length time steps into deterministic hydrological models are discussed and a method based on the use of rainfall thresholds to determine appropriate length steps automatically is presented. The method has been incorporated into a continuous catchment hydrology simulation model that was developed from an earlier version of a single-event flood model. The model, data preparation, and results analysis and display functions are all contained within a more general model application software package (HYMAS — Hydrological Modelling Application System), which is currently being developed. A brief description of the components of the model is provided, with emphasis on the effects on their operation using different length time steps of modelling. Data from a semi-arid grassland catchment in South Africa and an arid catchment in Arizona, USA, are used to illustrate that a variable time interval approach can improve the overall efficiency of a model.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
