Preprocessing of Gravity Data
Round 1
Reviewer 1 Report
Dear Authors,
Thank you very much for pay close attention on this important topic that are usually omitted by many researchers. It is a good start and has many potentials.
There is only one thing that I would like to remind the authors. That is use wavelets to de-noising. This is not the "classical" smooth technique, and deserved to be mentioned at least in the introduction part, I think.
Please find some minor suggestions in the attached pdf.
Comments for author File: 
Comments.pdf
Author Response
Reply to Reviewer 2
All responses to Reviewer 2 are involved in the attached manuscript by the method of MS Word Revision and Comments. The answers are highlighted in red colour on a yellow background.
At the Reviewer‘s 2 suggestion, two references [11] and [12] were included and the others were subsequently renumbered
Author Response File: Author Response.pdf
Reviewer 2 Report
The main task of the paper is to apply a reliable smoothing technique for the time series analysis of a gravity dataset. As a result, the most suitable for gravity data seems to be the nonlinear least-squares’ regression. However, some minor revisions should be made, in order to improve the manuscript before publication, as follows:
- Lines 13-20: The first half of the “Abstract” can be part of the Introduction. Useful information for the Abstract is included in Section 5. (Discussion).
- Lines 68-69, 71-72: The index k should be explained better.
- Line 84: The formula for the “Moving median” (MM) must be included.
- Line 94: The last column “SMOOTHED GRAV.” must be explained.
- Line 110: The correct is “intervals.”.
- Line 126-130: The parameter t of formula (7) must be defined quantitatively.
- Line 153: The last symbol of equation (8) must be defined clearly.
- Line 154: The unknown regression parameters as drift and tidal parameters of gravity data and their relevant variance components which have been estimated by the least square method must be presented in a new Table. These parameters have been used in Figure 2.
Author Response
Reply to Reviewer 2
All responses to Reviewer 3 are involved in the attached manuscript by the method of MS Word Revision and Comments. The answers are highlighted in red colour.
At the Reviewer‘s 3 suggestion, Table 3 was included and equations (5) and (6) were inserted therefore the other formulas were renumbered
Author Response File: Author Response.pdf
