Regional Dependence of Atmospheric Responses to Oceanic Eddies in the North Pacific Ocean

Round 1

Reviewer 1 Report

1. Line 56-64, What is the topic of this manuscript that the authors want to elaborate on (not mentioned in the previous research results)? What does "Regional dependence" mean? In lines 44-46, the authors mentioned that the previous study have already discovered cyclonic and anticyclonic response to SST, wind, rain rate, what is different between that and this research? What is the novelty and uniqueness of this article? Please explain in detail in Introduction.
2. The entire second chapter must be rewritten. Lines 70-73, Please confirm whether the data still exists in AVSIO or is it downloaded by CMEMS? The SSHA description is too concise. Please introduce the calculation principle of SSHA in detail, and it should refer to the instruction manual. Lines 74-78, AMSR is the name of the instrument, not the name of the data. The authors should describe SST, wind, water vapor, cloud liquid water, and rain rate in detail separately. Lines 79-85, I don't see any instructions about latent and sensible heat fluxes here. Lines 86-91, it should be described separately for each parameter. Lines 92-97, please elaborate once more on the principle of this method, not just a reference. I don't understand what the author is saying. The relationship between eddy and SSTA is defined by 0.05 degrees C?
3. Lines 106-116, I don't see how EKE is calculated.
4. Lines 120-133, how are eddy size and eddy lifespan calculated?
5. Lines 122-123, please elaborate on these two methods.
6. Line 136, please elaborate how eddy vorticity is calculated in this manuscript.
7. Lines 142-144, why is the size of vorticity related to whether it exists in the boundary current region?
8. Lines 148-156, Is the speed you mentioned here the speed of currents or the speed of eddy?
9. Figure 5 and Figure 6 refer to the average of all eddy in different region? Is there a small difference in eddy characteristics in each region? What are the standard deviations of wind speed and SSTA in each subgraph?
10. Figure 7, what is the temporal resolution of rainfall data? How do you compare rainfall and eddy?
11. I strongly suggest that the two values in Table 2 be taken apart and moved to sections 3.2.1 and 3.2.2. In addition, I don't see statistics about SSTA.
12. What does "+" in Figure 11 mean? Please indicate in the caption.
13. Lines 293-294, Is "velocity" for ocean flow or wind?
14. I strongly recommend that the authors provide at least one actual cyclonic and anticyclonic example to illustrate the response of eddy to the atmosphere before conducting statistical data. I'm not sure what the atmospheric response would be if we chose an actual eddy for analysis.
15. From the conclusion, I did not find the reason why the authors chose these four eddy rich regions? Do these four regions have a mutual relationship with each other? Or do the four regions' eddy responses to the atmosphere not affect each other? In addition, why does the authors only analyze the year from 2002 to 2010, and can the results of this manuscript support eddy activities in different decadal years? The author needs to add a detailed discussion in the manuscript. If the author only counts eddy characteristics from 2002 to 2010, the year must be added to the title.
16. Images and maps must have a scale, a north arrow and coordinates, please add these to the Figure 1 according to Instructions for Authors of journal.
17. In the current manuscript, I think the structure is quite confusing, like a report that introduces statistical data between different atmospheric parameters and eddy, rather than a scientific paper. I strongly recommend that authors restructure the article and highlight the novelty of the results.

Author Response

 

 

Author Response File: Author Response.pdf

Reviewer 2 Report

very well written

Author Response

 

 

 

Author Response File: Author Response.pdf

Reviewer 3 Report

This paper investigates the effect of warm eddies on atmosphere in various
areas, which is useful for study on air-sea interaction.
The main concerns are as follows:
(1) The authors mentioned two mechanisms about the air-sea interaction.
However, the analysis on the basis of the latter (Line 53: the sea level
pressure (SLP) adjustment mechanism [34], which states that.....) seems
to be not conducted. How is the mechanism and analysis for this ?
(2) As I see, the wind speed anomalies is related with SST gradient,
which has been pointed out (e.g., Chelton,https://doi.org/10.1175/JPO3025.1,
Sun et al., https://doi.org/10.1175/JCLI-D-19-0392.1 ).
It is difficult to see this from Fig.3 (if SSTA is related with SSHA),
because of the normalization. How is the relation and why the SST gradient
is the largest in the KE ?.

Other comments.
(1)Please define the anomaly. Does the SST 'anomaly' mean anomaly from
annual change (climatology )?
Are the sea surface height 'anomaly' and SST 'anomaly' same meaning ?
(2) Table 2: How is the correlation between atmospheric parameters
anomalies with SSTA ?
(3) Table 2: What is the number of data for regression fit ?
(4) Fig. 10 and 11: The plotted values seem to be parameters and not
parameter anomalies (e.g., not potential temperature anomalies).
Is it more effective than plotting parameter anomalies ?

Author Response

 

 

 

 

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

1. Reply response 1-3 and 1-4: The authors try to find out the eddy response to the atmosphere in these different areas, so discuss these areas together. Therefore, the results of this study suggest that the response of these eddy rich areas to the atmosphere operate independently of each other, or will they affect each other, or which areas and which areas have common influencing factors, the authors should discuss in the discussion.
2. Reply response 2: There are some details that are not added here. I mean in the Data chapter, not just the names and resolutions of the parameters. You must explain the calculation method and brief principles of each parameter. Water vapor, cloud liquid water, latent and sensible heat fluxes, and rain rate in detail separately. For example, how is wind calculated? How is water vapor calculated and so on, EVERY parameter MUST be.
3. Reply response 7: Lines 169-170, please describe more clearly about why eddies are stronger in SF and KE due to the strong baroclinic instability, what is the physical mechanism for here?
4. Reply response 9:Figure A1 should be added to the manuscript, which is important.
5. Reply response 10: I'm satisfied with the author's response here, but they don't seem to be in the revised manuscript. Figure A2 and the description must be added in the manuscript in the Method section. In addition, daily AMSR-E data is used, the authors should be very clear that daily data is orbital data (representing a specific moment), why does the author not consider using 3-day or weekly? Because the SSHA used by the author is weekly. Why 4 and 12 degree in Figure A2?
6. Reply response 14: The author mentions that there are more than 10,000 cases in the manuscript. I think Figures A3 and A4 are very suitable to be added to the manuscript. Please add.
7. Reply response 16:What is “Map scale: 1:1.48*10^8”, please add the scale on the map according to Instructions for Authors of journal.
8. The dots in Figures 5 to 8 are almost invisible. Please bold or enlarge or change to other icons.
9. Lines 288-290, What does mesoscale SST gradient mean?
10. Is the gray word U m / s in Figure 9 the wind speed? Or is the wind only in the east-west direction?
11. I have no opinion on the author wanting to put Conclusions and discussion in the same chapter, however, Accoring to Instructions for Authors, It is necessary to include a section on the uncertainties of the datasets used and how these propagate to the results and influence the conclusions. How accurate is SSHA, SSTA, AMSR-E, J-OFURO3, and CFSR from the satellite or reanalysis data you used? How does this accuracy influence the eddy-atmospheric interaction in the form of closed contours detection?
12. Almost all the pictures are not very clear, please improve the resolution of the pictures to meet the requirements of the journal.

 

Author Response

 

 

 

 

Author Response File: Author Response.pdf

Round 3

Reviewer 1 Report

Line 20,  "Subtropical Front-" should be "Subtropical Frontal" or "Subtropical Front"

Figure 10 & 11: "SST anomely (^o)" should be "SST anomaly (^o)"

Please choose only one name of "rain rate" or "precipitation rate".