Fig. 4: Relationships between cloud parameters and aerosol, along with results of mediation analysis.
From: Global quantification of the dispersion effect with POLDER satellite data

Joint histograms for a the liquid water content per cloud droplet (\({{{{\mathrm{LN}}}}}_{P}\)) and b the particle size distribution parameter (\({\beta }_{P}\)) versus the aerosol index (\({{{\mathrm{AI}}}}\)) over the global region (60°S–60°N), with both axes on logarithmic scales. c The result of mediation analysis, where ACMI and ADI represent the average causal mediation impact and average direct impact, respectively. The impact size means the change in \({\mathrm{ln}}(\beta )\) due to a one-unit increase in \({\mathrm{ln}}({{{\mathrm{AI}}}})\). The bar represents the mean impact size, and the error bar indicates the 95% confidence interval.