General Comments: 

To date, no single dataset can provide both the three-dimensional structure of precipitation and the relevant life cycle properties. This manuscript by Zhang et al. reported on one resilient such dataset, by combining rainfall cluster and GPM 2ADPR orbital data and MCS from Himawari-8 AHI. A series of resilient reprocessing steps have proposed, including filtration, segmentation, and consolidation on the initial RCs, which makes sure the robustness and high accuracy. This method is scientifically sound, and results are pretty reasonable from the case studies shown in the present study. The dataset will definitely help facilitate three- dimensional studies of the life cycle evolution of precipitation.  Therefore, I strongly recommend its acceptance after addressing the following several minor comments:

Minor comments:

L44-45: I noticed the references cited here are not involved in investigation of FY-4. The authors can refer to Wang et al. 2019 (doi: 10.1109/TGRS.2019.2923247) and the references therein.

L105-106: It is not clear to me what does it mean by “the central area”. Also, “in the region of subpolar westerlies with strong high-level westerly winds” is suggested to be further justified.

Figure 6 caption: The authors can clarify what do the colored profiles in panel c-d represent.

Figure 7a and Figure 7b: The y-axis can be revised to the same value range, which will help the readers better understand the difference between zonal and meridian speed.  

Again, my guess is that the peak speed observed within 20 – 30 N could be due to the subtropical jet stream. Can the authors show the seasonal wind field at 500 – 200 hPa?

L244: it is needed to clarify what profiles are compared when the authors state “relatively consistent DSD profiles”.

Technique correction:

L237:  Is “as” missing between  “different” and  “a result of”?

L242: “corresponding” -> “correspond”

The captions of Figures 3 and 5: “parts (c) and (d)” -> “panels (c) and (d)”

The authors present an interesting and useful data set of precipitation tracks for MCSs in Eastern Asia. The manuscript is very well written, but lacks some necessary details. I have more concerns about the data set, which is not properly described.

Major comments:

1. The dataset: Neither the metadata or the readme file explains what the "past", "present", and "future" suffixes actually mean. Why can, e.g., life_past be zero all the time? I would assume it would mark the hours the track has persisted. I am obviously wrong, but this is an example of where documentation is needed to make sure the data is correctly used and interpreted. Also, the time stamp is missing in all files. I encourage the authors to use the CF-convention format of the time vector.

2. The manuscript provides the spatial and temporal limitations of the data set at first on L 103. This should be clear from the title, abstract and introduction. Space: eastern Asia; time: April to June 2016-2020.

3. Some details of the processing are not explain in sufficient detail. See comments below.

Detailed comments:

L17-20: Please rewrite this sentence. It is too long, not clear about how the different data sets are employed, and has some grammar issues ("tracking algorithm" should be "tracks").

L103: The data set ends in 2020, which is harldy present day. Please explain why the geographical domain is not the complete disk of the geostationary statellite. Would it be technically possible to do the full domain (not considering the work of course).

L117: Was the contours made again on the new grid? Or were the contours remapped? Figure 4b indicates that the MCSs were remapped, rather than the DPR. Please clarify.

L120: Please specify from which point you calculate the 100 km. From the nearest pixel of the contour, or the centroid of the contour? Please also explain how the centroid of the contour is defined (here and in the data set). E.g., does the centroid need to lie within the contour (comparing to a banana shape area where it might end up outside the banana).

L138: Please explain what is meant by "restore the overlapping grids".

L142: What is meant with "gain weight", and "round by round"? Do you mean "we iteratively increase the RC cores by adding pixels around the area until..."

L144: How is the "smallest rain rate" defined? From which relative point in space? Is the gradient determined using two points, or more?

L225: Please add some information about the final data set. How many tracks, which information is in the files etc.