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Abstract

Predicting the steady state distribution of pollutants in rivers is important for water quality managers. A new simulation lan guage, the River System Modeling Methodology (RSMM), helps users construct simulation models for analyzing river pollution. In RSMM, a network of nodes and branches represents a river system. Nodes represent elements such as junctions, dams, withdrawals, and pollutant sources; branches represent homo geneous river segments, or reaches.

The RSMM processor is a GASP V program. Models can employ either the embedded Streeter-Phelps equations or user supplied equations. The user describes the network diagram with GASP- like input cards.

RSMM outputs may be printed or stored in an SDL™* database. An interface between SDL and DISSPLA provides high quality graphical output.

Keywords

combined models environmental science fluid flow network models resource management,special-purpose languages

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RSMM: A network language for modeling pollutants in river systems

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