Estimation of Geopotential Value W0 for the Geoid and Local Vertical Datum Parameters
Round 1
Reviewer 1 Report
This manuscript is extremely poorly written both in terms of structure and in terms of its use of English, fails to properly describe and document the techniques used and adequately explain the numerical results obtained, and contains glaring omissions of appropriate reference citations. The manuscript is not suitable for publication.
Along with this review I am uploading an annotated version of the manuscript, with numerous comments and corrections of mine, which the authors should consider in their drafting of possible future manuscripts related to this topic.
I recommend outright rejection.
Comments for author File: 
Comments.pdf
Author Response
Please see the attachment.
Author Response File: 
Author Response.docx
Reviewer 2 Report
In this manuscript, a new geopotential value W0 is obtained from the new altimetry data, which will provide us with a new reference to solve the thorny problem of global vertical datum unification. The manuscript is well argued and well structured, which shows that the authors have good scientific literacy. To make the manuscript more excellent, I put forward the following suggestions for reference:
Point 1: For simplicity, Figures 1-3, Figures 6-9 and Table 7-8 can be combined separately.
Point 2: P3L115: “The figure 1” should be changed to “Figure 1”, the same expression below should be modified too. The English expression has many flaws and should be improved.
Point 3: In Chapter 3, there are too many formulas listed, some basic formulas do not need to be described.
Point 4: P18: The conclusion, which is too simple, should be more systematic and logical.
Author Response
请参阅附件。
Author Response File: Author Response.docx
Reviewer 3 Report
1. Line 41: What does “SST” mean?
2. Line 193: The sentence “The new method ignores the weak correlation between the intersecting 193 altimetry satellite arc segment during the calculation process” needs modification. “The new method ignores the weak correlation among the intersecting 193 altimetry satellite arc segments during the calculation process”
3. After section 3.3.2, whether is it required to discuss some properties of your methods.
In all, this paper calculates W0 by using a lot of data, to unify the global vertical datum. The whole method and results are reliable. However, if the paper can further analyze the method used and the data resolution to the accuracy of the whole result, it will greatly improve the quality of the paper.
Author Response
Please see the attachment
Author Response File: Author Response.docx
Round 2
Reviewer 1 Report
The authors have failed to address satisfactorily many of my comments on their original version. Their revised version remains unacceptable for publication.
Author Response
Dear reviewer:
Thank you for your decision and constructive comments on my manuscript. We have carefully considered the suggestion of Reviewer and make some changes. We have tried our best to improve and made some changes in the manuscript. If you are not satisfied, can you point out some specific comments for us to solve?
