1. General Model Information

Name: STRESS (Segment Travel River Ecosystem Stochastic Simulation)

Acronym: STRESS

Main medium: aquatic
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: not specified
Main application:
Keywords: water quality, shallow streams, steep streams, moving segment approach, monte carlo method, pollution, point source, nonpoint source


Dr. Seok Park
Dept. of Environmental Science
Kangwon National University
200-701 Korea
Phone: 82-361-50-8575
Fax : 82-361-56-4043
email: sspark@cc.kanfwon.ac.kr


Seok Park


The model was developed by incorporating the Monte Carlo technique with the previously developed and validated deterministic model called STREAM (Segment Travel River Ecosystem Autograph Model). STRESS was designed to be more representative of steep and shallow streams with large variations of water quantity and quality which are typical in Korean peninsula. The model considers randomness in the head water, point source, nonpoint source conditions, and the travel time of water segment, and computes the frequency distributions, the mean values and the standard deviations of the predicted water qualities. Major constituents included in STRESS are Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Suspended Solid (SS), Coliform Bacteria, Nitrogen Series, Phosphorus Series, and Phytoplankton. Stress is executed on personal computer and designed for implementation with EGA/VGA color graphic. A demonstration application for the Tancheon, a tributary of the Han River, is presented to validate the stochastic nature of the model. The result indicated that STRESS could effectively simulate random variations of water qualities in steep and shallow streams.

Model purpose
To predict water quality with random variations und present the results in graphic format.

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

II.1 Executables:

Operating System(s): DOS

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

Park, S., 1993.STRESS User Manual and Documenation,Kangwon National University.

V. Further information in the World-Wide-Web

VI. Additional remarks

Monte Carlo simulation of random phenomena in natural streams submitted to the International Association of Water Quality, 1993.
Last review of this document by: T. GabeleNov 21th 1997
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:50 CEST 2002

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