Evaluating the Increasing Trend of Strength and Severe Wind Hazard of Philippine Typhoons Using the Holland-B Parameter and Regional Cyclonic Wind Field Modeling
Round 1
Reviewer 1 Report
The manuscript investigated the trend of intensity and wind hazards in Philippine due to typhoon storms using the JMA best track dataset. The Holland pressure model and wind field model at free atmosphere were employed. The variation of Holland B parameter and annual maximum winds was discussed. The topic of the paper is worth of study. It is of interests to the readers of this journal. However, the reviewer believes that the manuscript in current form is below the publication level standard. It is not recommended to be published unless more solid discussions are present.
(1) The quality of introduction part needs to be significantly improved. Many recent studies are not well discussed regarding the typhoon-induced wind hazards in the western north Pacific Ocean since the estimation of typhoon hazards should consider their full tracks from genesis to lysis. And effects of climate change mentioned by authors are also required more intensive discussions. Sentences, on occasion, needs to be revised. Such as the first sentence in 2nd paragraph, the categories of typhoons can be expressed in a pithy way.
(2) Figure 1: the reviewer is confused about the caption of “Tracks of all typhoons passing through the Philippines from 1977-2021.”. No tracks are observed in the Figure. How the authors define the “typhoons passing through the Philippines”?
(3) As known by the reviewer, the maximum sustained wind speed provided by the JMA is the wind speed at surface level. However, in Eq. (1) and (2), the maximum gradient wind speed is used. The use of current equations remains questionable.
(4) Eq. (4), the 10-min sustained wind speeds should consider the wind directions of gradient wind and heading direction of the storm.
(5) One-hour interval of tracks is interpolated, but the reviewer doubts that the maximum wind speed of a given storm could be not well captured since the peak wind speed could occur between one and the other hour time points.
(6) The quality of the figures in the manuscript needs to be improved.
(7) Figure 8, it is recommended to show the exact values for the color bar.
(8) Part 4 is recommended to be inserted in part 3 to describe the trend and new findings from Figure 4 to Figure 11.
Author Response
Please see the attachment.
Author Response File: 
Author Response.docx
Reviewer 2 Report
Please see the attached file.
Comments for author File: 
Comments.pdf
Author Response
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Author Response File: Author Response.docx
Reviewer 3 Report
With the change in typhoon characteristics and behavior discovered as a result of climate change, the evaluation of the trend of severe wind hazards caused by typhoons in the Philippines remains. This research is to discover changes in the wind hazard of typhoons in the Philippines by comparing changes in regional cyclonic wind fields with the Philippine Area of Responsibility.
The paper is new and a good study has been done.
But I would suggest upgrading the language and grammar of the whole manuscript.
Moreover, the abstract and conclusions of the paper need to be reformatted, because both sections do not contain the information of the research that has been done in the manuscript.
So the author should directly discuss the research aim of the manuscript in both sections.
After the above-mentioned comments are addressed, I will be fine to accept the paper.
Author Response
- The author has fixed some of the cluttered paragraphs in the text.
- The discussion of the results are further expanded. Results from related literature are also included in the discussion.
- The author has also included the return period winds and the specific regions where an overall increase of wind hazard was observed in the abstract.
- The author has provided a summary of the study in the Conclusions section.
Round 2
Reviewer 1 Report
(1) The response to my second question is off the point;
(2) To my first question, it is suggested to give more descriptions rearding to recent contributions from other sudies for typhoon wind field modeling (e.g., [1-2]), estimation of Rmax and B (e.g., [3]) and typhoon wind hazard estimation (e.g., [4-5]).
[1] A semi-empirical model for mean wind velocity profile of landfalling hurricane boundary layers. Journal of Wind Engineering and Industrial Aerodynamics, 180, 249-261.
[2] A novel analytical model for wind field simulation under typhoon boundary layer considering multi-field correlation and height-dependency. Journal of Wind Engineering and Industrial Aerodynamics, 175:77-89.
[3] Toward a refined estimation of typhoon wind hazards: Parametric modeling and upstream terrain effects, Journal of Wind Engineering & Industrial Aerodynamics, 209, 104460.
[4] Extreme Typhoon Wind Speed Mapping for Coastal Region of China: A Geographically-Weighted-Regression-based Circular Subregion Algorithm, Journal of Structural Engineering, 147(10), 04021146.
[5] Typhoon wind hazard estimation for China using an empirical track model. Natural Hazards, 82(2), 1009-1029.
Author Response
A comprehensive rewriting was done to correct the grammatical errors in the text. Please see the attachment for the response.
Author Response File: Author Response.docx
Reviewer 3 Report
The authors have updated the manuscript considerably as per the suggestions given in the previous report.
I am satisfied with the revised version.
Author Response
A comprehensive grammar check has been conducted along with improvements in describing the methods.
