The role played by
mathematical models in predicting DO concentration in rivers is globally known
and widely accepted as a decision making tool with regard to management of
water resources. The relevant literature is full of models with varied
complexity. Regardless of their complexity, almost all models include some
common parameters like coefficient of reaeration, rate of decay of settleable
as well as dissolved BOD and initial settleable BOD. The values for these
parameters as cited in literature may vary from one river to another. The
objective of this chapter is to show the effect of variation (within the
specified range) in the value of above stated
parameters on concentration of total BOD and total DO using enhanced one
dimensional model. Various changes are observed and shown graphically.
Mathematics Subject Classification : 34B05
Model, Advective zone, Coefficient of reaeration, Biochemical Oxygen Demand
(BOD), Dissolved Oxygen (DO).