1. General Model Information


Acronym: SMARAGD

Main medium: aquatic
Main subject: hydrology
Organization level: ecosystem
Type of model: compartment model, ordinary differential equations
Main application:
Keywords: submerged macrophyte abundance, lake, freshwater, extinction characteristics, ligth extinction


Drs. F.J. Los.
Delft hydraulics, P.O.Box 177, 2600 MH Delft, THE NETHERLANDS.
Phone: +31.15.2569353
Fax: +31.15.2619674
email: hans.los@wldelft.nl



The model predicts submerged macrophyte abundance based on depth and extinction characteristics of water bodies. Depth profile of basin or lake or river needed as input. 2-Dimensional abundancy map as output (multi segment model).

Purpose of the model:

Model parentage:

Source of the AbstractCAMASE Register of Agro-ecosystems Models

II. Technical Information

II.1 Executables:

Operating System(s): Costs: Consult author.

II.2 Source-code:

Programming Language(s): Microsoft FORTRAN-77.

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

State variables: Biomass, macrophyte biomass extinction, depth, irradiance (average columns), I2 depth related irradiance.

III.2.1 Input

Depth, irradiance (total) extinction coefficient. Input check in model: No.

III.2.2 Output

Macrophyte biomass per segment.
Basic spatial unit: m2.
Time interval of simulation: Irrelevant.

IV. References

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: T. Gabele: Dec 10 1997
Status of the document:
last modified by Joachim Benz Mon Jul 2 18:31:37 CEST 2007

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