Influence of three phases of El Niño–Southern Oscillation on daily precipitation regimes in China

Lv, Aifeng; Qu, Bo; Jia, Shaofeng; Zhu, Wenbin

doi:https://doi.org/10.5194/hess-23-883-2019

Articles | Volume 23, issue 2

https://doi.org/10.5194/hess-23-883-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-23-883-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 2

Research article

|

14 Feb 2019

Research article |

| 14 Feb 2019

Influence of three phases of El Niño–Southern Oscillation on daily precipitation regimes in China

Aifeng Lv, Bo Qu, Shaofeng Jia, and Wenbin Zhu

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Final revised paper (published on 14 Feb 2019)
Preprint (discussion started on 14 Feb 2018)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

SC1: 'Comments on paper by Lv et al.', Qiang Zhang, 19 Feb 2018
- AC1: 'Reply to the comment of Dr. Q. Zhang', Bo Qu, 22 Jun 2018
RC1: 'Meaningful study but has big uncertainties', Anonymous Referee #1, 12 Mar 2018
- AC2: 'Reply to the comments of Anonymous Referee #1.', Bo Qu, 23 Jun 2018
RC2: 'Comment on “Influence of three phases of El Niño-Southern Oscillation on daily 2 precipitation regimes in China,” by Lv et al.', Anonymous Referee #2, 12 May 2018
- AC3: 'Reply to the comments of Anonymous Referee #2.', Bo Qu, 24 Jun 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (further review by editor and referees) (28 Jun 2018) by Luis Samaniego

AR by Bo Qu on behalf of the Authors (08 Sep 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (11 Sep 2018) by Luis Samaniego

RR by Anonymous Referee #1 (24 Sep 2018)

Suggestions for revision or reasons for rejection

Lv et al, Influence of three phases of El Niño-Southern Oscillation on daily precipitation regimes in China

This revision answers most of my concerns and questions but I still have some concerns on the choice of period duration for these three phases of ENSO events, i.e. the developing and decaying years, which may really only cover couple of months, rather than entire year. Another concern is on the use of daily precipitation to represent the intensity of precipitation events. Daily time intensity surely is better than monthly rainfall but still has uncertainties to represent true variations for each individual event. The paper should add some discussions on this issue. The followings has some minor comments.

Suggest replace China with "Mainland China" since no information covers Taiwan.

Line 18-19: Rephrase "ENSO events...". Does it mean that the precipitation during the period of ENSO events controls the magnitude of annual precipitation?
Line 21: "ENSO events triggered MORE extreme...", need add "than ...";
Line 31: Replace "vulnerable" to another word;
Line 32: Is it real that "global annual rainfall drops during El Nino phases"? or should it be global annual rainfall over the land?
Line 38: add "strong" between "anomalous" and "southwesterly winds";
Line 39: replace "insufficient" with "less";
Line 41-43: rephrase "As ENSO...". I don't understand what it means.
Line 50: replace "annual rainfall days" with "wet days per year";
Line 50-53: These examples have nothing related with ENSO events (literally) and they may cause confusing.
Line 67: better replace "may now exist" with "should be defined (or separated from canonical El Nino)".
Line 68: add "discovered" between "new" and "El Nino";
Line 74: rephrase "The current study...";
Line 86: delete "data from"; replace "between" with "of";
Line 87: what is the difference between "amount" and intensity?

Table 1: either use "rainy" or "wet" day, not both.
Rephrase the definition of "R95p" as "Total precipitation over wet days with larger than 95th percentile during the period of 1971-2000".
Add more details on how DS and CWD is counted. The units of these two indices might be "count"?

Lines 100-104 defined the developing and decaying year of EP El Nino phase, how about CP and La Nina phases?
It is still confusing how these "developing" and "decaying" years are identified and how much uncertainties comes from this (in particular its total length and overlapping period with other phases).

Line 110; Rephrase the sentence for describing the Mann-Whitney U test.
Line 122: replace ". At 80 of these stations the anomalies" with "and 80 of them" (need double check if these stations with significant signals all have negative signs or not);

Line 136: Explain what is the "result" in the expression of "as a result"?
Line 138-140: Rephrase this sentence. Which is "CP phases"? Developing or decaying phases?

Line 169: rephrase "a clear distribution pattern";
Line 143: replace "the whole of China" with "Mainland China as a whole";
Line 200: replace "fewer" with "smaller";

Line 216: This sentence hints that this study was conducted on "individual precipitation events" but it is not true. A clarification such as "daily precipitation events" might be more suitable.

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ED: Publish subject to minor revisions (review by editor) (20 Nov 2018) by Luis Samaniego

AR by Bo Qu on behalf of the Authors (26 Nov 2018) Author's response Manuscript

ED: Publish as is (07 Jan 2019) by Luis Samaniego

AR by Bo Qu on behalf of the Authors (14 Jan 2019) Manuscript

Short summary

ENSO-related changes in daily precipitation regimes are currently ignored by the scientific community. We analyzed the anomalies of daily precipitation and hydrological extremes caused by different phases of ENSO events, as well as the possible driving mechanisms, to reveal the influence of ENSO on China's daily precipitation regimes. Our results provide a valuable tool for daily precipitation prediction and enable the prioritization of adaptation efforts ahead of extreme events in China.