Tab. 5 Parameters of SO2 maps
Linear regression model + interpolation of residuals | 4th highest daily average | Annual average | Winter average | |||
rural areas | urban background | rural areas | urban background | rural areas | urban background | |
c (constant) | 13.96 | 13.55 | 3.71 | 3.83 | 4.45 | 4.78 |
a1 (model SYMOS) | 1.33 | 1.42 | 0.31 | 0.59 | 0.65 | 0.70 |
a2 (model CAMx) | 177.56 | 186.89 | 124.92 | |||
weight IDW | 1.4 | 2 | 1 | 1 | 1 | 1 |
RMSE [µg.m-3] | 7.8 | 5.8 | 2.3 | 2.6 | 3.4 | 3.7 |
relat. RMSE [%] | 26 | 21 | 32 | 39 | 38 | 45 |