Table 2: General performance of the TVAR ( 1 ) model and the TVAREX models in different seasons.

SeasonModelRMSE ( 𝜇 g m−3)MAPE (%) 𝑅 2 IA

SpringTVAR ( 1 ) 39.0446.780.370.77
TVAREX-Lin38.0941.780.460.83
TVAREX-NLin38.5143.630.400.80
TVAREX-O325.3334.870.500.85

SummerTVAR ( 1 ) 36.7945.530.420.79
TVAREX-Lin36.2838.520.530.86
TVAREX-NLin36.8140.640.500.81
TVAREX-O323.2830.920.650.90

AutumnTVAR ( 1 ) 36.6145.200.450.81
TVAREX-Lin34.5640.010.570.87
TVAREX-NLin34.6440.320.500.83
TVAREX-O322.4630.880.710.91

WinterTVAR ( 1 ) 32.2643.050.500.84
TVAREX-Lin30.5132.670.640.89
TVAREX-NLin31.2133.210.580.86
TVAREX-O324.3231.030.600.90