1. General Model Information

Name: model for erosion on slopes

Acronym: EROSION_2D


Main medium: terrestrial
Main subject: biogeochemistry
Organization level: Ecosystems
Type of model: compartment model
Main application:
Keywords: soil, erosion, single event model

Contact:

Prof. Dr. Peter Ergenzinger
Freie Universitaet Berlin
Institut fuer Geographische Wissenschaften

Grunewaldstr. 35
12165 Berlin
Germany

Phone: ++49-30-8384855
Fax : ++49-30-8384842
email: perg@gauss.geog.fu-berlin.de

Author(s):

Dr. Juergen Schmidt

Abstract:

contents of the model
EROSION_2D is a physically based computer model for simulating sediment transport on slopes. The model is based on the moment fluxes exerted by the falling droplets and by the slope. A critical moment flux, determined by the discharge at initial erosion, is introduced in order to estimate the erodibility of the soil. For quantitative results the theoretical model is calibrated with experimental data.
principles of the model
The input parameters of the EROSION_2D model are the altitude coordinates of the initial slope profile, the surface and soil properties, and the vegetationcover of the slope. The characteristic variables can vary across space (changes in the long profile of the slope) and time (e.g. seasonalvariations). Sediment transport is always calculated on the basis of sinufis/gle precipitation or erosion events. These are characterized by the time of their occurence (day and month), their duration and the temporal variation of precipitation intensity. After simulation, the initial slope profile and the erosion and deposition rates are presented in the form of graphics and tables.

II. Technical Information

II.1 Executables:

Operating System(s): PC

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

Complete model documentation: Schmidt, Juergen: Entwicklung und Anwendung eines physikalisch begruendeten Simulationsmodells fuer die Erosion geneigter, landwirtschaftlicher Nutzflaechen, Forschungsbericht, BMBF, Referat 522 (1991), pp. 70.

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

Schmidt, Juergen 1991.Entwicklung und Anwendung eines physikalisch begruendeten Simulationsmodells fuer die Erosion geneigter, landwirtschaftlicher Nutzflaechen.
Forschungsbericht, BMBF, Referat 522, pp. 70.



V. Further information in the World-Wide-Web



VI. Additional remarks

Additional information
Last review of this document by: R. Patzak : 1. October 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:42 CEST 2002

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