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Model Description: |
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| Process-based, dynamic water quality model with close linkage between |
Model structure |
| hydraulic and ecological modules. Selected target variables: oxygen, |
Developer |
| nutrient concentrations, particle concentrations, algae and zooplankton. |
References |
| Application also in other river systems and canals (e.g. Saale, Moselle, Rhine, |
Role within GLOWA-Elbe |
Saar). |
Model results |
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Input Data:
Morphology/hydrology: river geometry, discharge
Meteorology: global radiation, air temperature, cloud coverage, humidity, wind speed
Physics/chemistry: water temperature, oxygen, COD, ammoni-um, nitrate, phosphorus, silica, pH, alkalinity, seston
Biology: BOD, plankton algae (chlorophyll a and proportions of major algal groups), zooplankton, benthic algae, macrophytes, benthic filter feeders.
Results:
Daily and annual courses of all above-mentioned variables along the river stretch. Process rates of nutrient turnover, carbon and oxygen, algal growth.
Resolution:
x-axis:100 to 1000 m (segments generated in QSim)
y-compartment: main river and groyne fields
z-compartment: pelagic zone and sediments
variable time steps (usually 1 h)
Operating system:
Windows
Programming language:
C (Hydrax), Fortran 77 (QSim), user interface Visual Basic
Model run time:
6 hours for 1 year including hydraulics; once hydraulics are calculated, 3 hours for 1 year
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