Table 3.
Configuration of the AEM3D model for the Paprocany reservoir.
| Parameters | Values | |||
|---|---|---|---|---|
| Time step (s) | 120 | |||
| Mean albedo of the water for shortwave radiation | 0.08 | |||
| Mean albedo of the water for long wave radiation | 0.03 | |||
| Wind drag coefficient | 0.0013 | |||
| Drag coefficient on bottom cells | 0.005 | |||
| Sediments reflectivity | 0.9 | |||
| Surface heat transfer coefficient | 0.0015 | |||
| Light extinction coefficients (m−1) | Photosynthetically active radiation | Near infrared | Ultra violet A | Ultra violet B |
| 1.0 | 0.2 | 1.8 | 2.5 | |
| Phytoplankton | mixotrophs | Cyano-bacteria | green algae | Diatoms |
| Variable internal N and P store | Yes | |||
| Vertical migration and settling type | Motile | Constant | ||
| Constant settling velocity (m s−1) | - | - | - | −0.12 × 10−6 |
| Type of light limitation algorithm | photo-inhibition | no photoinhibition | ||
| Half saturation constant for density increase (uEm−2 s−1) | - | 278 | 25 | - |
| Rate coefficient for density increase (kgm−3 min−1) | - | 0.9 | - | |
| Minimum rate of density decreases with time (kgm−3 min−1) | - | 0.041 | - | |
| Rate for light dependent migration velocity (m h−1) | 0.6 | 0.3 | 0.3 | 0.85 |
| Rate for nutrient dependent migration velocity (m h−1) | 0.27 | 0.30 | 0.30 | 0.65 |
| Maximum N fixation rate(mg N mg Chl a 24 h−1) | 0 | 2 | 0 | 0 |
| C:Chlorophyll a ratio | 40 | |||
| Light saturation for maximum production (µEm−2 s−1) | 390 | 500 | 300 | 100 |
| Initial slope of photosynthesis-irradiance curve (µE m−2 s−1) | 140 | 150 | 100 | 80 |
| Maximum potential growth rate (d−1) | 1.3 | 1.0 | 1.5 | 3.2 |
| Optimum temperature for growth (°C) | 20 | 20 | 24 | 18 |
| Maximum temperature for growth (°C) | 28 | 35 | 30 | 30 |
| Standard temperature for growth (°C) | 20 | 20 | 17 | 15 |
| Half saturation constant for P | 0.001 | |||
| Half saturation constant for N | 0.05 | 0.04 | 0.05 | 0.04 |
| Maximum internal N concentration (mg N mg Chla−1) |
12.5 | 5.0 | ||
| Minimum internal N concentration (mg N mg Chla−1) |
3.5 | 2.5 | 3.0 | 2.7 |
| Maximum internal P concentration (mg P mg Chla−1) |
0.76 | 1.50 | 1.00 | 0.64 |
| Minimum internal P concentration (mg P mg Chla−1) |
0.34 | 0.10 | 0.30 | 0.62 |
| Specific attenuation coefficient (µg chla L−1m−1) |
0.02 | 0.02 | 0.04 | 0.04 |
| Minimum density (kg m−3) | ||||
| Temperature multiplier for respiration | 1.04 | 1.03 | 1.08 | 1.07 |
| Respiration rate coefficient (d−1) | 0.2 | |||