Research Article
Study on Water Quality Inversion Model of Dianchi Lake Based on Landsat 8 Data
Table 10
Relative errors of different models.
| Water quality parameters | COD | DO | pH | NH3-N | Relative error of neural network (%) | Relative error of neural network (%) | Relative error of neural network (%) | Relative error of multiple regression (%) | Relative error of neural network (%) | Relative error of multiple regression (%) | Relative error of neural network (%) | Relative error of multiple regression (%) |
| ā | 4.25 | 7.77 | 2.54 | 2.83 | 1.79 | 1.97 | 6.90 | 26.07 | 40.41 | 44.4 | 7.12 | 7.64 | 0.36 | 2.00 | 45.95 | 49.78 | 3.01 | 7.13 | 0.29 | 0.13 | 2.30 | 2.06 | 12.5 | 5.33 | 2.72 | 33.77 | 4.92 | 4.32 | 1.57 | 1.09 | 16.67 | 22.78 | 19.8 | 25.26 | 6.18 | 1.40 | 0 | 4.25 | 0 | 36.41 | 1.17 | 0.18 | 3.28 | 4.81 | 0.39 | 0.90 | 5 | 14.23 | 1.62 | 7.51 | 4.31 | 4.01 | 0.23 | 0.23 | 20.69 | 18.31 | 8.33 | 13.75 | 1.83 | 1.71 | 3.37 | 0.13 | 15.38 | 27.33 |
| Average relative error (%) | 9.68 | 17.48 | 3.81 | 3.36 | 1.25 | 1.58 | 15.39 | 24.97 |
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