Graphic Yearbook 2014
Tab. 4 Parameters of NO2 and NOx maps
| Linear regression model + interpolation of residuals | NO2 annual average |
NOx annual average |
||||
| rural areas | urban background | traffic | rural areas | urban background | traffic | |
| c (constant) | 9.7 | 16.3 | 30.3 | 18.3 | 35.1 | 67.5 |
| a1 (model SYMOS) | 1.52 | 1.65 | 2.69 | 0.50 | 0.85 | 3.70 |
| a2 (altitude) | -0.01 | -0.01 | -0.03 | -0.01 | -0.04 | -0.10 |
| a3 (emissions of NOx from REZZO 4) | 0.34 | 0.38 | ||||
| weight IDW | 1 | 1 | 1 | 1 | 1 | 1 |
| RMSE [µg.m-3] | 1.7 | 3.5 | 7.6 | 3.1 | 8.1 | 21.3 |
| relat. RMSE [%] | 18 | 18 | 25 | 25 | 27 | 32 |
