I still notice several issues with the language usage in the current version and ask for additional effort to improve its readability. Below are a few examples.
Abstract, line 10, replace “enhancing” to “affecting”.
The next sentence, change “the interaction is found” to “the aerosol-PBL interaction is identified”.
Change “Opposite trends in aerosol loading between the lower and upper PBL are found on a wide range of time scales and from different types of data acquired by various platforms” to “Opposite trends in aerosol loading between the lower and upper PBL are shown on a wide range of time scales and data acquired by various platforms”.
Change “Trend analyses of three particulate variables having different temporal scales, namely, visibility, aerosol optical depth, and extinction, all exhibit the same trend: increasing in the lower atmosphere, but decreasing in the upper atmosphere” to “The analyses of visibility, aerosol optical depth, and extinction with different temporal scales exhibit the similar trend, i.e., increasing in the lower atmosphere, but decreasing in the upper atmosphere”.
Change the sentences “The column-integrated quantities are much less variable. The reversal aerosol trend is consistent with the strong vertical gradients in the aerosol-induced heating rate that modifies the atmospheric temperature profile and stability”.
The last sentence “especially in many developing countries producing large amounts of black and brown carbon aerosols” to “especially in many developing countries with high emissions of light-absorbing aerosols”.
Also, I believe that it is important to include some discussion on the possible impacts of the aerosol indirect effect on PBL in China. It has been clearly shown that long-term cloud properties and precipitation have been significantly modified by highly elevated aerosols in China, as evident by suppressed light rainfall but intensified heavy rainfall (Wang et al., Long-term impacts of aerosols on precipitation and lightning over the Pearl River Delta megacity area in China, Atmos. Chem. Phys. 11, 12421, 2011).