Open Access
Table 1
Parameterizations of phytoplankton functional groups used in the model (from Exley et al., 2022).
| Parameter | Range sampled (min., max. or fixed) | ||||||
|---|---|---|---|---|---|---|---|
| Diatoms | Greens | Cyanobacteria | |||||
| PAR saturation level for growth (mol-quanta m–2s–1) | Min | 0.000025 | 0.0005 | 0.00075 | |||
| Max | 0.000045 | 0.00075 | 0.0009 | ||||
| Optical cross section of chlorophyll‑a (m–2mg–1) | Fixed | 0.03 | 0.005 | 0.01 | |||
| Loss rateat 20 °C (day–1) | Grazed | Un-grazed | Grazed | Un-grazed | Grazed | Un-grazed | |
| Fixed | 0.18 | 0.13 | 0.05 | 0.025 | 0.025 | 0.0125 | |
| Settling velocity (m day–1) | Fixed | 0.3 | 0.05 | 0.005 | |||
| Specific growth rateat 20 °C (day–1) | Min | 0.7 | 1 | 1.1 | |||
| Max | 1.1 | 2 | 1.8 | ||||
| Half saturation growth P level (mg m–3) | Fixed | 5 | 5 | 5 | |||
| Half saturation growth N level (mg m–3) | Grazed | Un-grazed | Grazed | Un-grazed | Grazed | Un-grazed | |
| Fixed | 80 | 80 | 80 | 80 | 80 | 0.1 | |
| Half saturation growth Si level (m gm–3) | Fixed | 550 | – | – | |||
| If algae are N-Limited | Grazed | Un-grazed | Grazed | Un-grazed | Grazed | Un-grazed | |
| Fixed | 1 | 1 | 1 | 1 | 1 | 1 | |
| If algae are Si-Limited | Fixed | 1 | 0 | 0 | |||
| Scaling factor for inflow concentration of chlorophyll‑a (dimensionless) | Fixed | 0.5 | 0.4 | 0.1 | |||
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