Vertically integrated anthropogenic aerosol mass concentration M a and low‐level water cloud properties (optical depth τ , effective particle radius r e , and columnar droplet number N c ) were correlated over east Asia to elucidate human‐induced effects on low‐cloud properties. Aerosol and cloud properties were obtained from numerical simulations and satellite observations, respectively. Monthly averages of geographical matches between collocated M a and cloud properties for three seasons showed that as M a increased, τ and N c increased and r e decreased, which is consistent with the Twomey effect. Their changing rates became less steep when M a was large. However, the importance of a dynamical effect was also suggested. A comparison of different cloud top heights revealed that values of τ and r e of middle and lower clouds followed those of the total water cloud cases and reflected vertical characteristics.
No takes yet. Share an insight, caveat, or question.
Kawamoto et al. (2006) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: