Comparison Study on Climate Changes between the Guangdong–Hong Kong–Macao Greater Bay Area and Areas around the Baltic Sea
Round 1
Reviewer 1 Report
Understanding the facts and factors of regional climate change in coastal communities are very important under current global warming background. This manuscript studies the multi-scale climate changes in the Greater Bay area and area around Baltic Sea area by using the Ensemble Empirical Mode Decomposition (EEMD) and Mann-Kendall methods. The analyses show there are four time-scale changes in both areas. The research method and the results are reliable. However, there are some minor mistakes, the authors should carefully check the whole manuscript, such as some below:
The Chinese words in figures 4, 5 and 8 should be changed in English.
Line 220, figure 5b(g)…, figure 5d(g)…？ Is this right? I think the authors can just use “As show in figures 5b-j,”
Line 239, inter-decadal scales
Line 246, figures 6b(h), line 261, similar to line 220.
Line 310, the whole China
Lines 314 and 320, Pacific decadal oscillation (PDO) occurs twice.
Line 317, SST, need give the full words when it first appears.
Line 320, Siberian high (NH)??, and delete “North Pacific Oscillation (NPO)”, you already mentioned PDO.
Lines 331 and 333, “eg.” should be “e.g.,”, how to understand “hanging orbital”?
Line 340, change “Interdecadal Pacific Oscillation (IPO)” as “PDO”
Lines 352 and 356, change “century scales” as “centennial scales”? check the whole manuscript
Author Response
Reviewer 1 points: Understanding the facts and factors of regional climate change in coastal communities are very important under current global warming background. This manuscript studies the multi-scale climate changes in the Greater Bay area and area around Baltic Sea area by using the Ensemble Empirical Mode Decomposition (EEMD) and Mann-Kendall methods. The analyses show there are four time-scale changes in both areas. The research method and the results are reliable. However, there are some minor mistakes, the authors should carefully check the whole manuscript, such as some below:
Response 1:
Question1: The Chinese words in figures 4, 5 and 8 should be changed in English.
Answer1. We have changed the Chinese words in figures 4, 5 and 8 into English, seeing in figures 4,5 and 8 in the revised version.
Question2: figure 5b(g)…, figure 5d(g)…？ Is this right? I think the authors can just use “As show in figures 5b-j,”
Answer 2. According to the comments, figures we selected in Line 195 and 220 have be changed to Figure 4b-i，Figure 4d-h, Figure 4f-g,Figure 4h-h and Figure 4j-h in line 195; Figure 5b-g, Figure5d-g, Figure 5f-f, Figure 5h-g and Figure 5j-g in line 220;
Question3: Line 239, inter-decadal scales
Answer 3. the inter-decal scales in line 239 has be changed to inter-decadal scales
Question4: Line 246, figures 6b(h), line 261, similar to line 220.
Answer 4: According to the comments, figures we selected in Line 246 and 261 have be changed Figure 6b-h, Figure 6d-h and Figure6f–h in line 246 ; Figure 7b-g, Figure 7d-g and Figure 7f-g in line 261.
Question5: Line 310, the whole China
Answer 5. The whole China in line 310 have be changed to the whole china.
Question6: Lines 314 and 320, Pacific decadal oscillation (PDO) occurs twice.
Answer 6. Pacific decadal oscillation (PDO) in line 320 have be change to PDO.
Question7: Line 317, SST, need give the full words when it first appears.
Answer 7. SST in line 317 have changed to sea surface temperature (SST).
Question 8: Line 320, Siberian high (NH)??, and delete “North Pacific Oscillation (NPO)”, you already mentioned PDO
Answer 8. Pacific Decadal Oscillation (PDO), Siberian high (NH), North Pacific Oscillation (NPO) in line 320 have changed to PDO and Siberian high (SH).
Question 9: Lines 331 and 333, “eg.” should be “e.g.,”, how to understand “hanging orbital”?
Answer 9. “eg.” in line 302, 331 and 333 have changed to “e.g.,”, and hanging orbital in line 331 changed to changing orbital, which is cited from reference 56 (mode simulation experiment)
Question 10: Line 340, change “Interdecadal Pacific Oscillation (IPO)” as “PDO”
Answer 10. Interdecadal Pacific Oscillation (IPO) in line 340 have be changed to PDO.
Question 11: Lines 352 and 356, change “century scales” as “centennial scales”? check the whole manuscript
Answer 11. century scales in line 352 and 356 have be changed to centennial scales. Besidese, in the whole paper, century scales in line 23,25,30,180,185,188,193,215,218,238,240, 245,259,295,
296,328,and century scales intable 4,5,6,7 have be changed to centennial scales or centennial variations.
Author Response File: 
Author Response.docx
Reviewer 2 Report
The results of the paper are interesting in two ways: (a) while the temperature showsan increase for both studied locations over the last 150 years, while they are
geographically and physically diametrically different from each other, (b) the occurrence
of precipitation is different, which indicates that the analysis of precipitation for
a selected area on the earth's surface, it cannot be a model for another area or the earth.
This means that global warming (climate change) on the occurrence of precipitation is
differentiated. It also shows that the studied parameters for inland and outland develop
differently. The details of the inter-annual and inter-decadal scales are discussed
in detail. The question is whether the analysis of observations for 150-160 years,
except for station 10 (263 years) for century scales (periods) is reliable. I have the
following comments on the article: L. 15, 72, 171, 376, 469 - grammar mistakes P. 2: L. 49, 50 billions - what currency?
Fig. 3: Image descriptions could be bigger size Figs 4 and 5: Their size and arrangement for clarity should be the same
as for Figs. 6 and 7.
Author Response
Reviewer 2 points: The results of the paper are interesting in two ways: (a) while the temperature shows an increase for both studied locations over the last 150 years, while they are geographically and physically diametrically different from each other, (b) the occurrence of precipitation is different, which indicates that the analysis of precipitation for a selected area on the earth's surface, it cannot be a model for another area or the earth. This means that global warming (climate change) on the occurrence of precipitation is differentiated. It also shows that the studied parameters for inland and outland develop differently. The details of the inter-annual and inter-decadal scales are discussed
in detail. The question is whether the analysis of observations for 150-160 years, except for station 10 (263 years) for century scales (periods) is reliable. I have the following comments on the article:
Response 2:
Question 1: L. 15, 72, 171, 376, 469 - grammar mistakes
Answer 1. For the grammar mistakes in line 15,72,171,376,376,we changed as follows:
Line 15ï¼›we focus on fact analysis of multi-scale climate changes in the Guangdong-Hong Kong-Macao Greater Bay area (GBA) and areas around Baltic Sea area (BSA).
Line 72：which is in the transition zone from temperate marine climate to continental climate.
Line 171: Power spectrum analysis of IMFs at Hongkong in GBA(period-density(a), frequency-density(b))and Stockholm in BSA(period-density(c), frequency-density(c))
And the corssponding line 161 to 164 ,we changed to” we also analyzed the power spectrum features of each IMF. The results show that in each IMF component, fluctuation period or frequency may be varied throughout the whole time scale. Figure 3 show examples of power spectrum density analysis of temperature IMFs at Hong Kong station (C2-C9) in GBA and Stockholm station (C3-C10) in BSA.”
Line 376(references): Kreft, S.; Eckstein, D.; Melchior,I. Global Climate Risk Index 2017: Who Suffers Most From Extreme Weather Events? Weather-related Loss Events in 2015 and 1996 to 2015. Germanwatch e. V. Bonn.2016, 32 pp. Available at:
https://germanwatch.org/sites/germanwatch.org/files/publication/16411. pdf.
Line 469(references): Stips, A.; Lilover, M. Yet Another Assessment of Climate Change in the Baltic Sea Area: Breakpoints in Climate Time Serie. In: 2010 IEEE/OES Baltic International Symposium (BALTIC). Riga, Latvia. IEEE. 2010, 1-9. DOI: 10.1109/BALTIC.2010.5621643.
Question 2: L. 49, 50 billions - what currency?
Answer 2. 50 billions in line 49 have be changed to 50 billions RMB (statistical data come from Guangdong Climate Center)
Question 3: Fig. 3: Image descriptions could be bigger size Figs 4 and 5: Their size and arrangement for clarity should be the same as for Figs. 6 and 7.
Answer 3. we have rearranged figure 4 and 5, which are the same size as figure 6 and 7, besides we also adjusted some legends in figure 4,5,8.
Reviewer 3 Points: The paper investigates temperature changes in two geographical coastal regions. The methods used and the results are approved and the paper has innovation.The quality of the figures in the article needs to be corrected.
Response 3:
Question 1: The quality of the figures in the article needs to be corrected.
1.we have rearranged figure 4 and 5, which are the same size as figure 6 and 7, besides we also adjusted some legends(chinese into English ) in figure 4,5,8.
Response to other mistakes
- Besides, the height of line6 in table 7 should be adjusted to 0.5 cm
- Author 2 address in line 6 have be changed to: 2 Guangzhou Marine Geological Survey, china Geological Survey/Key Laboratory of Marine Mineral Re-soures, Ministry of Natural Resources, No. 1133 Haibin Rd., Nansha District, 511458 Guangzhou, China
Author Response File: Author Response.docx
Reviewer 3 Report
The paper investigates temperature changes in two geographical coastal regions. The methods used and the results are approved and the paper has innovation.
The quality of the figures in the article needs to be corrected.
Author Response
Response 3:
Question 1: The quality of the figures in the article needs to be corrected.
1.we have rearranged figure 4 and 5, which are the same size as figure 6 and 7, besides we also adjusted some legends(chinese into English ) in figure 4,5,8.
Response to other mistakes
- Besides, the height of line6 in table 7 should be adjusted to 0.5 cm
- Author 2 address in line 6 have be changed to: 2 Guangzhou Marine Geological Survey, china Geological Survey/Key Laboratory of Marine Mineral Re-soures, Ministry of Natural Resources, No. 1133 Haibin Rd., Nansha District, 511458 Guangzhou, China
Author Response File: Author Response.docx
