Research Article
Hydrodynamic Modeling of a Tropical Tidal River Using the Dynamic Estuary Model (DYNHYD5): A Case Study in Sibu Laut River, Sarawak, Malaysia
Table 2
Summary of changes (%) of channel flow and mean depth in sensitivity analysis.
| Channel | M. coeff. 0.015 | M. coeff. 0.055 | M. coeff. 0.075 | −50% inflow | +50% inflow | −50% SB | +50% SB | Flow | Depth | Flow | Depth | Flow | Depth | Flow | Depth | Flow | Depth | Flow | Depth | Flow | Depth |
| 1 | −0.3% | −0.2% | 0.0% | 0.4% | 0.0% | 0.9% | −50.1% | −0.2% | 49.9% | 0.2% | 0.1% | −43.6% | 0.6% | 44.3% | 2 | 0.1% | −0.2% | −0.1% | 0.3% | −0.1% | 0.8% | −50.0% | −0.1% | 49.9% | 0.2% | −0.1% | −42.0% | −0.6% | 42.8% | 3 | 0.2% | −0.4% | −0.3% | −0.1% | −0.3% | 0.0% | −50.0% | −0.3% | 49.8% | −0.2% | −0.3% | −50.1% | −2.2% | 49.0% | 4 | 0.3% | −0.1% | −0.4% | 0.2% | −0.4% | 0.5% | −49.9% | −0.1% | 49.7% | 0.1% | 0.1% | −44.2% | −4.6% | 44.5% | 5 | 0.0% | −0.1% | 0.0% | 0.1% | −0.4% | −0.2% | −50.0% | 0.0% | 49.9% | −0.2% | −26.2% | −73.2% | −0.4% | 66.8% | 6 | 0.2% | −0.6% | −0.3% | 0.1% | −0.4% | 0.7% | −49.9% | −0.5% | 49.8% | −0.1% | −12.1% | −55.4% | −3.6% | 55.8% | 7 | 0.7% | −0.1% | −0.5% | 0.3% | −0.5% | 0.6% | −49.9% | −0.1% | 49.6% | 0.2% | −8.4% | −26.8% | −5.2% | 27.4% | 8 | −0.4% | −0.2% | 0.3% | 0.3% | 0.3% | 0.7% | −50.1% | −0.1% | 50.2% | 0.2% | 4.4% | −28.3% | 3.3% | 28.9% | 9 | −0.5% | −0.2% | 0.3% | 0.3% | 0.3% | 0.7% | −50.1% | −0.1% | 50.2% | 0.2% | 3.4% | −32.7% | 3.1% | 33.4% | 10 | −0.7% | −0.1% | 0.4% | 0.2% | 0.4% | 0.4% | −50.1% | −0.1% | 50.3% | 0.1% | 4.7% | −33.1% | 4.8% | 33.6% | 11 | −0.1% | −0.2% | 0.0% | 0.3% | 0.0% | 0.8% | −50.0% | −0.1% | 50.0% | 0.1% | −15.0% | −97.8% | 0.2% | 114.9% | 12 | −0.2% | −6.1% | 0.2% | 6.5% | 0.2% | 13.0% | −50.2% | −5.6% | 50.7% | −1.1% | 0.4% | −38.7% | 0.9% | 216.2% | 13 | −0.1% | −0.2% | 0.0% | 0.4% | 0.0% | 0.9% | −50.1% | −0.1% | 50.3% | 0.1% | −11.0% | −96.8% | 0.6% | 110.5% | 14 | 0.1% | −0.1% | 0.0% | 0.2% | −0.1% | 0.4% | −50.0% | 0.0% | 50.2% | 0.1% | −5.1% | −60.6% | 0.7% | 61.4% | 15 | −0.5% | 0.0% | 0.3% | 0.1% | 0.3% | 0.2% | −50.1% | 0.0% | 50.2% | 0.0% | 1.2% | −32.3% | 3.6% | 32.7% |
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M. coeff., Manning’s coefficient; SB seaward boundary.
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