Accession Number : ADA300485

Title :   A Continuum Model for Streamf1ow Synthesis.

Descriptive Note : Final rept. 1 Nov 89-12 May 95,

Corporate Author : SOUTHERN UNIV BATON ROUGE LA

Personal Author(s) : Joseph, Erat S. ; Singh, Vijay P.

PDF Url : ADA300485

Report Date : 21 AUG 1995

Pagination or Media Count : 130

Abstract : In this study, three related areas were investigated with the objective of developing a continuum model for streamfiow synthesis. The areas spanned surface runoff to subsurface unsaturated flow to flood wave propagation to comparative assessment of different dynamic wave representations of the shallow water wave theory. The surface runoff was modeled using discrete line models for overland flow, and physically based Muskingum methods for channel flow Also developed was a theory of errors for a comparative evaluation of the kinematic, diffusion, and dynamic wave representations of the shallow water wave theory. The unsaturated flow was modeled using a systems based model for infiltration and soil moisture, and the kinematic wave theory for movement of soil moisture. The infiltration model was a general one encompassing the popular models of Horton, Kostiakov, Overton, Green and Ampt, and Philip as special cases. The models developed in the project were verified using field data. In most cases, simplified models were found to be adequate.

Descriptors :   *STREAMFLOW ANALYSIS, KINEMATICS, WATER WAVES, MODELS, SYNTHESIS, DYNAMICS, THEORY, SHALLOW WATER, GROUND WATER, SOILS, WAVE PROPAGATION, SURFACE WATERS, FLOODS, MOISTURE, CHANNEL FLOW, SIMPLIFICATION, RUNOFF.

Subject Categories : Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE