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Results of numerical model simulations with SPRINTARS. (a) Distribution of ratios of simulated sulfate AOT components relative to the total AOT at a wavelength of 0.55 μm. (b) The same as (a) but for carbonaceous components. (c) AOT contribution (%) of each component relative to total particles at the Beijing AERONET site (39.97° N, 116.38° E). (d) The same as (c), but at the reference area (37.06° N, 115.35° E) (the ⊚ symbol in Figure 3).
