1. General Model Information
Name: Multi-Component Model of Phosphorus Dynamics in Reservoirs
Main medium: aquatic
Main subject: biogeochemistry
Type of model: not specified
Keywords: phosphorus, eutrophication, reservoirs, impoundments, water quality modeling
Dr. Raymond A. Ferrara
Omni Environmental Corporation
211 College Road East
Princeton NJ 08540-6623 USA
Phone: +1 609-243-9393
Fax : +1 609-243-9297
The models available for simulating phosphorus dynamics and trophic states in
impoundments vary widely. The simpler empirically derived phosphorus models tend
to be appropriate for long-term, steady or near steady state analyses. The more
complex ecosystem models, because of computational expense and the importance of
input parameter uncertainty, are impractical for very long-term simulation and most
applicable for time-variable water quality simulations generally of short intermediate
time frames. An improved model for time variable, long-term simulation of trophic
state in reservoirs with fluctuating inflow and outflow rates and volume is needed.
Such a model is developed in this paper representing the phosphorus cycle in two
layer (i.e. epilimnion and hypolimnion) reservoirs.
The model is designed to
simulate seasonally varying reservoir water quality and eutrophication potential
by using the phosphorus state variables as the water quality and indicator. Long-term
simulations with fluctuating volumes and variable influent an effluent flow rates are
feasible and practcal. The model utility is demonstrated through application to a pumped
storage reservoir characterristic of these conditions.
Long-term (i.e., years) simulation of phosphorus and the trophic state in impoundments.
Source of the Abstract:
Joergensen S.E., B. Halling-Soerensen and S.N Nielsen (Edts.) 1996: Handbook of Environmental and Ecological Modelling. CRC Press Boca Raton et al. 672 pp.
II. Technical Information
Programming Language(s): FORTRAN
III. Mathematical Information
Griffin, T.T., and Ferrara, R. A., 1984. A Multicomponent model of Phosphorus Dynamics in Reservoirs. Paper No. 83124 of the Water Resources Bulletin, Vol. 20, No. 5, October 1984.
Gray, W. G.. 19?? : Physics-based Modelling of lakes, Reservoirs, and Impoundments, page 229. Edited by author. (Documented Models, Round Vally Reservoir Multi-Compnent Phosphorus Model Documentation by Raymond A. Ferrera and Thomas Griffin).
V. Further information in the World-Wide-Web
VI. Additional remarks
Last review of this document by: T. Gabele: 10. 10. 1998
Status of the document:
last modified by
Tobias Gabele Wed Aug 21 21:44:45 CEST 2002