Larger Dust Cooling Effect Estimated From Regionally Dependent Refractive Indices
Hao Wang,
Xiaohong Liu,
Chenglai Wu
et al.
Abstract:The dust direct radiative effect (DRE) depends strongly on the dust particle size distribution (PSD) and complex refractive index (CRI). Although recent studies constrained the dust PSD in the models, its CRI uncertainties are still large. As a result, whether dust warms or cools the climate system remains unclear. Here, we estimate the dust DRE by employing the regionally‐dependent dust CRI based on global measurements. We find that new dust CRI significantly enhances the scattering of dust in the shortwave w… Show more
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