Table 3.

Trends of combustion AOD (decade⁻¹) with seasonal distinction derived from the MODIS Aqua retrievals and CAM5 simulations in NAT and MED outflow regions. A trend with a significance level of p<0.05 and p<0.01 is marked with * and **, respectively. A trend without an asterisk is considered not statistically significant.

Outflow region	NAT		MED
	MODIS	CAM5	MODIS	CAM5
DJF	−0.005**	−0.011**	−0.007	−0.012
MAM	−0.021**	−0.023**	−0.027**	−0.022**
JJA	−0.040**	−0.033**	−0.025**	−0.018**
SON	−0.010*	−0.012**	−0.020*	−0.015**
Annual	−0.019**	−0.020**	−0.020**	−0.017**