The authors have addressed my comments satisfactorily. The revisions to the title, abstract, and model description resolve the main points I raised, and the remaining items (figure readability and captions) are minor and can be finalized during revision. I recommend the manuscript for acceptance.

Relative roles of aerosol size and hygroscopicity in modulating cloud responses under varying environments

Line 15-18, I wonder if the increase of aerosol size and/or hygroscopicity cause occurrence of precipitation and then reduce cloud water, while the effect could depend on the status of initial cloud/environment status.

Line 26-27, I would suggest adding some recent review studies as supporting references.

Line 34-36, In addition to these early studies, recent studies should be briefly mentioned, such as Niu et al. (2026, doi: 10.1007/s11430-025-1794-7) and Li et al. (2025, doi: 10.1029/2024JD042649) for impact of meteorological conditions, Zhao et al. (2025, doi: 10.1007/s00376-024-4165-z) and Liang et al. (2026, doi: 10.1029/2025JD045635) and for aerosol properties. Particularly, the latter study is also for roles of aerosol size, and the authors may discuss the same or different findings between them.

Line 59, Personally, I wonder if the supersaturation is high over the Arctic. Please help explain, thanks.

Line 65, “show” should be “showed”?

Figure 1, the location of EC is not highlighted as ECO?

Line 153-155, What do the authors mean for “NCEP et al., 2015”, “NCEP et al., 2014” and “Satellite Services Division et al., 2004”?

Line 208-209, There are some of most recent studies regarding the importance of aerosol size, which are worthy to mention and compare.

Figure 3 caption, meanings for each panel should be given.

Line 281-283, the definition of clouds here uses different threshold values form many previous studies, an explanation or sensitivity analysis should be given to indicate the reliability.

Line 302-304, For low to medium Na conditions, Nd increase of up to 2000 cm-3 seems too large to me, while it is somehow possible for extreme cases.