A Hydrologic Model Developed for Microcomputers

by Shaw L. Yu, Univ of Virginia, Dep of Civil, Engineering, Charlottesville, VA, USA,
Todd S. Tisdale, Univ of Virginia, Dep of Civil, Engineering, Charlottesville, VA, USA,
Donna L. Richardson, Univ of Virginia, Dep of Civil, Engineering, Charlottesville, VA, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract: An event oriented hydrologic catchment model has been programmed for use on a microcomputer. Because the program is written in PASCAL, it uses features of this language that eliminate variable dimensioning problems encountered with programs written in FORTRAN. Therefore, the program can simulate a rainfall event of any duration, occurring on a basin with any number of catchments, subject to the contraints of computer memory. The watershed is represented by a binary tree structure and is evaluated using a post-order traversal technique. The program used hydrologic modeling techniques found in similar programs developed for main frame computers. The model has been successfully tested for several catchments.

Subject Headings: Hydrologic models | Computer models | Catchments | Rainfall duration | Computer software | Basins | Watersheds | Trees

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