1. General Model Information

Name: CemoS/Chain - food chain model for chemicals

Acronym: CEMOS_CHAIN


Main medium: terrestial
Main subject: (eco)toxicology, biogeochemistry
Organization level: Biocoenosis
Type of model: compartment model
Main application:
Keywords: soil, deposition, exposure, chemical transfer, capillary rise, leaching

Contact:

Dr. Stefan Trapp
University of Osnabrueck
Institute of Environmental Systems Research
Artilleriestr 34
49069 Osnabrueck, Germany
Phone: +49-541-9692574
Fax : +49-541-969-2599
email:

Author(s):

Jan-Oliver Wagner
Guido Baumgartner
Bernhard Reiter
Sven Scheil
Stefan Schwartz
Dr. Stefan Trapp
Prof. Michael Matthies Email:cemos@skylla.mathematik.uni-osnabrueck.de

Abstract:

contents of the model
The model is part of the model package CemoS, a program system that is developed to estimate the exposure concentration of environmental chemicals. CemoS/Chain is a food chain model, consisting of three levels: producer, consumer1 and consumer 2. Chemical degradation and accumulation in consumers are calculated after a sinufis/gle input of a chemical into the producer occurred. The model generally describes a cascade with three elements. Thus, it can be used for modelling other problems too (for example radioactive decay).
principles of the model
The change of the mass of a chemical in the producer and the consumers are described by a linear differential equation system with constant coefficients. Analytical solutions for the concentrations of the chemical in producer, consumer 1 and consumer 2 are given.

Author of Abstract: UFIS - Environmental Research Information System


II. Technical Information

II.1 Executables:

Operating System(s): MS-DOS Type of computer: PC RAM required: about 150 KB Disc space: 1MB List of files: CEMOS.EXE executeable program CEMOS.OVR STDSUB.DAB substance data EGAVGA.BGI graphic file CEMOS.HLP help file CEMOS.RES string file

II.2 Source-code:

Programming Language(s): Borland Pascal 7.0

II.3 Manuals:

Manual: Trapp, St. ; Matthies, M.: Dynamik von Schadstoffen - Umweltmodellierung mit Cemos, Springer, Berlin (1996). ISBN 3-540-59312-8. Complete model documentation: Trapp, St. ; Matthies, M.: Dynamik von Schadstoffen - Umweltmodellierung mit Cemos, Springer, Berlin (1996). ISBN 3-540-59312-8.

II.4 Data:



III. Mathematical Information


III.1 Mathematics

This is a list of model equations sorted by their characteristics with hypertext links for more details.

III.2 Quantities

This is a list of model quantities sorted by their characteristics with hypertext links for more details.

III.2.1 Input

III.2.2 Output


IV. References

Projektgruppe Exposmod. 1995. CemoS Handbuch.(in german)



V. Further information in the World-Wide-Web



VI. Additional remarks

Additional information
Last review of this document by: R. Patzak : 5.August 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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