Thermally Induced Displacements and Rotations of Pillars for Precise Geodetic Measurements
Round 1
Reviewer 1 Report
Comments and Suggestions for AuthorsThis manuscript is relatively simple. Therefore, it is essential to highlight the novelty of the study and include a Discussion section. Below are the critical comments:
- In the Abstract, the authors should present the results quantitatively rather than qualitatively.
- The Introduction should explicitly highlight the study's novelty at the end.
- Citations should be formatted numerically. For example, lines 111-112: “Hagedorn et al. [15], Abid et al. [16], Wang et al. [17], Lu et al. [18], Fan et al. [19], Saad et al. [20]” should be revised to “[15-20].”
- The title of Figure 1 should be changed from:
"Figure 1. Examples of reference points for precise geodetic measurements: (a) First example; (b) Second example; (c) Third example; (d) Fourth example."
to:
"Figure 1. Examples of reference points for precise geodetic measurements: (a) first example; (b) second example; (c) third example; and (d) fourth example."
Similar revisions should be applied to the titles of other figures.
- In Figure 7, the fluctuation in temperature over time should be explained.
- Figure 8 should incorporate statistical errors to compare calculated results with observed displacements.
- Given the simplicity of this manuscript, the Discussion section is crucial. The authors should include it after the Results section, discussing the study’s advantages, strengths, limitations, applicability, and future directions. Relevant literature should also be cited.
- The Conclusions section should be restructured using numbered points (e.g., (1), (2), (3), etc.) to improve readability.
Author Response
Comment 1: In the Abstract, the authors should present the results quantitatively rather than qualitatively.
Response 1: We agree. The abstract was revised accordingly, see the revised paper, Page 1.
Comment 2: The Introduction should explicitly highlight the study's novelty at the end.
Response 2: Done as suggested, see the last paragraph in Introduction of the revised paper.
Comment 3: Citations should be formatted numerically.
Response 3: We have taken this suggestion into account.
Comment 4: The title of Figure 1 should be changed…
Response 4: We have revised the caption of all figures with multiple items, adopting lowercase formatting and the correct conjunctions.
Comment 5: In Figure 7, the fluctuation in temperature over time should be explained.
Response 5: We have now added an explanation of the temperature fluctuations in Figure 7, see the text bellow figure 7 on Page 8. The new paragraph by our opinion clarifies the thermal behavior observed at both inclinometer positions during the experiment.
Comment 6: Figure 8 should incorporate statistical errors to compare calculated results with observed displacements.
Response 6: Agree. The relative errors are now displayed in the revised paper.
Comment 7: Given the simplicity of this manuscript, the Discussion section is crucial…
Response 7: Thank you for this important suggestion, we believe it helped improving our paper. A new Section with discussion has been added. See Section 4 of the revised manuscript.
Comment 8: The Conclusions section should be restructured using numbered points (e.g., (1), (2), (3), etc.) to improve readability.
Response 8: We agree. Conclusions were restructured to increase clearness.
Reviewer 2 Report
Comments and Suggestions for AuthorsPlease consider attached document
Comments for author File: 
Comments.pdf
Author Response
Comment 1: Abstract. We need an approach to the obtained results here. Please include
Response 1: Done as suggested, see the revised abstract.
Comment 2: Please, we need the objective of the work to be clearly written at the end of the last paragraph…
Response 2: Taking this comment into account an additional paragraph has been added at the end of Introduction (page 4) with our goal to address also objectives of our study.
Comment 3: About the displacement sensor line #157: We need to know more about this sensor...
Response 3: Done as suggested, see the revised paper.
Comment 4: Leica Geosystems Nivel 210 2D inclinometer. In addition, we need its technical characteristics and precision in measurements. Please include.
Response 4: Done as suggested, see the revised paper.
Comment 5: Equation at line #175. We need to know what the 'z' parameter is. I would prefer this expression to be removed from the paragraph and written in the same way as the rest of the equations in the manuscript.
Response 5: Thank you, we have overseen that this explanation is missing. The explanation has been added and expression has been changed to display form.
Comment 6: Equation #2. We need the citation to the reference from where this expression was obtained.
Response 6: Agree. The reference to a relevant textbook has been added.
Comment 7: Equations #5 and #6. We need the authors to identify and define the parameters of these equations.
Response 7: Agree. The explanations are now stated just after these two equations.
Comment 8: Conclusions section. As we have no Results section, we need the authors reiterate the study's main objective and emphasize whether or not it was met...
Response 8: We have added a new Section with discussion on the objectives of reported research revealing also the objectives and limitations. The Conclusions were enriched by some crucial numerical values of our observations.
Comment 9: References section. Something strange has happened with reference #17
Response 9: Agree. It has been resolved.
Reviewer 3 Report
Comments and Suggestions for AuthorsThe article mainly studies the displacement and rotation phenomena of cadastral reference columns caused by thermal loads. Specifically, the study investigated the bending of the reference column caused by temperature differences when one side of the column is heated by sunlight and the other side is kept cool, resulting in horizontal displacement of the screw used to force the center positioning instrument. The research results of this article indicate that calculating displacement by measuring inclination is an effective method that can be used to improve the reliability of geodetic measurement networks. Future research can further explore the thermal effects under different environmental conditions and how to better apply this method in practical applications. Raise the following questions for the authors' reference:
1： How to use inclinometers more effectively in practical applications to monitor and correct the displacement of cadastral survey reference columns caused by temperature changes?
2： Is the impact of temperature changes on cadastral survey reference columns consistent across different seasons and climatic conditions? If they are different, what is the difference?
3： How to evaluate and compensate for the impact of reference column displacement caused by temperature on measurement accuracy in cadastral surveying?
4： How to consider the impact of temperature changes to improve the stability of new cadastral survey reference columns when designing them?
5： In cadastral surveying, besides temperature changes, what other environmental factors may affect the stability of reference columns?
Author Response
Comment 1： How to use inclinometers more effectively in practical applications to monitor and correct the displacement of cadastral survey reference columns caused by temperature changes?
Comment 2： Is the impact of temperature changes on cadastral survey reference columns consistent across different seasons and climatic conditions? If they are different, what is the difference?
Comment 3： How to evaluate and compensate for the impact of reference column displacement caused by temperature on measurement accuracy in cadastral surveying?
Comment 4： How to consider the impact of temperature changes to improve the stability of new cadastral survey reference columns when designing them?
Comment 5： In cadastral surveying, besides temperature changes, what other environmental factors may affect the stability of reference columns?
Response 1-5: We would like to express our gratitude to the reviewer for the kind words and the detailed questions provided. The questions raised are indeed important, and we have given them careful consideration. Regarding the use of inclinometers for monitoring and correcting the displacement of cadastral survey reference columns caused by temperature changes, we believe that while the thermal effects on displacements are present, their impact on cadastral measurements is relatively small. The displacements caused by solar radiation affect only very precise measurements and are unlikely to be significant in the broader scope of cadastral surveying. This has been noted also in the Discussion of the revised paper, see the second paragraph of Section 4. We also agree that the consistency of temperature effects across different seasons and climatic conditions is an interesting avenue for future research. We will consider these ideas in future studies. However, we feel that in the context of standard cadastral measurements, the need for such considerations is minimal, given the robustness of current methods used in practical applications.
Round 2
Reviewer 1 Report
Comments and Suggestions for AuthorsThe authors have already responded to my previous comments. I have no further remarks and recommend accepting the paper for publication.
Reviewer 3 Report
Comments and Suggestions for AuthorsThe paper has been well revised and the manuscript has reached the level for publication.
