This paper investigated the ‘seeder-feeder’ process of bilayer stratiform clouds. Using ground-based MMCR and MWR) in spring and autumn from 2020 to 2022 in Xi’an, the authors defined several key parameters of ‘seeder-feeder’ process, including Height Difference (HD) of two clouds and effective seeding depth (ESD), and studied the relationship of the key parameters. The idea of this paper is innovative, and presents well references for investigating ‘seed-feeder’ processes and effects in other regions. The studies are well organized with clear results.

Specifically, I’m very curious about one question: how does the ‘seeder-feeder’ process initiate (end time of t1 and start time of t2)? It would be nice if the authors discuss more clearly about this issue.

Line 388：delete ‘f’ after ‘The’

The attachment is our response to the comments of a referee. We appreciate the reviewer’s thoughtful review and constructive comments. 

General comments:

The manuscript presents analysis of cloud and precipitation development related to the seeder-feeder mechanism, based on ground-based Ka-band millimeter-wave cloud radar (MMCR) and microwave radiometer (MWR) in Xi’an, China. Through analysis of the reflectivity factor and the radial velocity of cloud particles detected by MMCR, and the retrieved cloud dynamics parameters (vertical velocity of airflow and falling velocity of cloud particles), the authors showed that the reflectivity factor in the cloud are significantly enhanced during the seeder-feeder period, and the magnitude of the enhancements are different for clouds with different HD (the height difference between the seeding cloud base and the feeding cloud top) and ESD (the effective seeding depth). While the manuscript is understandable as a whole, many phrases and explanations are not clear or even incorrect. I think the quality of the manuscript needs a significant improvement.

Specific Comments:

1. When explaining the seeder-feeder mechanism (Lines 31-33), the authors said: When these seeders meet lower cloud droplets with ice phase or in supercool water state, the droplets will grow larger by riming or vapor deposition via the Wegener-Bergeron-Findeisen effect (Bergeron 1935; He et al., 2022). This is conceptually incorrect. It should be the ice particles that grow in the WBF process, not the droplets.

2. Probably the most significant contribution of this article is by defining the height difference between the seeding cloud base and the feeding cloud top (HD) and the effective seeding depth (ESD), the authors found that the seeding effect are different for cloud with different HD. However, the similar expressions “The lower and thinner the HD height was, the lower and thicker the ESD height was. On the contrary, the higher the HD height, the higher and thinner the ESD height” appeared in the Abstract (Lines 20-21) and in the Conclusions (Lines 529-530) are hard to understand. The heights of HD and EST cannot be described as thinner or thicker.

More detailed comments:

1. The title may be changed as “The characteristics of cloud macro parameters caused by seeder-feeder process inside clouds measured by millimeter-wave cloud radar in Xi'an, China”;

2. Line 13: Change “China Xi’an” to “Xi’an, China”;

3. Lines 18-19: “But there are different enhancements among the reflectivity factor profiles for the three seeder-feeder processes” may be modified to “But the magnitudes of the enhancements among the three seeder-feeder processes are different” to avoid duplication with the previous sentence;

4. Line 26: “lead” may be modified to "promote";

5. Lines 29-30 are not clear;

6. Lines 34-35: There are syntax errors in this expression;

7. Lines 36-38: The sentence is incomplete or not clear;

8. Lines 42-44: There is logical problem in this sentence;

9. Lines51-54: The expression is not clear to me. What scientific questions are still existing related to the seeder-feeder process?

10. Line 57: Why several cloud layers are needed?

11. Line 64: “the seeder-feeder processes” or “the seeder-feeder process”?

12. The sentence in Lines 66-67: “The parameters of microphysics, dynamics and thermodynamics during the seeder-feeder process were focused on analysis” is not clear to me.

13. Line 83: “observations data” may be changed to “observational data”.

14. Line 109: “which reduces the trouble of eliminating terrain clutter in observation data quality control”, needs to be rewritten.

15. What does “air haze” in Line 110 mean?

16. Lines 109-113 are not clear.

17. Lines 120-121: the expression ”Because the descending the cloud particles velocity in different phase states is different, the influence on the vertical velocity of the airflow in the cloud is different” needs to be written.

18. Line 128: What does mean by “In the identified l supercooled water region”?

19. Line 129: “When there was a drizzle, the SP of MMCR usually shows a bimodal distribution”: a drizzle?

20. Line 138: change “this season” to “these seasons”;

21. Line 141: “cloud bottom” should be changed as “cloud base” , similar changes should also be made in other places;

22. Lines 139-141: How the heights of cloud top and cloud base are defined?

23. Lines 152-153: “…… seeding time t2 at 98.2min, and feeding cloud development duration at more than 2hr 30min” needs rewritten.

24. Line 166 and several other places: “the final falling velocity” is “the terminal fall velocity”?

25. Lines 170-171: why the unit of width of the velocity spectrum is m/s?

26. Lines 184-186: “But in some altitudes, there are the airflow sinking movements, which can be explained the needs of airflow sinking movement short-term to achieve mass balance”: What does this mean?

27. Line 187: “the sinking velocity of the cloud particles is in the range of –1~ –4 ms^-1 during seeding process”: What size cloud particles can get such falling velocity? The sinking velocity is the terminal fall velocity?

28. Lines 207-210: “During being seeded, ice particles were the main component in the cloud. After being seeded, the ice particles in the lower part of the feeding cloud lasted for a long time (maintaining the whole t3 period), while the supercooled water layer at the top was obvious”: This needs more explanation.

29. Lines 211-212: “The instantaneous water vapor flux structure (Fig. 4b) indicates that the seeding cloud is smaller than the feeding cloud”: smaller in size or water vapor flux?

30. “seeing-feeding” in Lines 213-214 should be “seeding-feeding";

31. Lines 229-233: not clear;

32. Line 236: Change “Following to this principle” to “Following this principle”;

33. Lines 240-241: “……the corresponding average profile of cloud particle parameter profile for the three intensity echoes is also gained” needs rewritten;

34. Lines 287-288: “…… after the seeding, the cloud particle size distribution and particle velocity of the bilayer cloud reach a relatively balanced and stable state through complex thermodynamic and dynamic interactions”: needs more physical explanation.

35. Lines 310-312: “Therefore, the Effective Seeding Depth (ESD) is defined as the height difference between the top height of the feeding cloud and from the height down to the height of the maximum correlation coefficient, which represents the influence of seeders on the seeding cloud”: I do not understand.

36. What does it mean by “sowing effect” in Line 315?

37. There are more expression problems in the remaining part of the text. I suggest the quality of the whole text to be carefully checked and revised.