||Stream Productivity Analysis with DORM (Dissolved Oxygen Routing Model) - 1: Development of Computational Model.
Gulliver, J. S. ;
Stefan, H. G. ;
||Minnesota Univ., Minneapolis. Dept. of Civil and Mining Engineering.;Environmental Research Lab.,-Duluth, MN.
Dissolved gases ;
Biological productivity ;
Mathematical models ;
Diurnal variations ;
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A numerical dissolved oxygen routing model (DORM) is developed to determine total stream community photosynthesis (P) and community respiration rates (R) through iterative routing of two-station diel DO measurements. The model differs from existing procedures for diel curve productivity analysis; it uses the complete stream DO transport equation, including longitudinal dispersion, dependence of respiratory rate on water temperature and dissolved oxygen and wind dependent oxygen transfer through the water surface. The model, DORM, is more accurate than the traditional graphical procedures and dield curve and is simple to apply. (Copyright (c) 1984 Pergamon Press Ltd.)