Influence of multidecadal variability on high and low flows: the case of the Seine basin

Bonnet, Rémy; Boé, Julien; Habets, Florence

doi:https://doi.org/10.5194/hess-24-1611-2020

Articles | Volume 24, issue 4

https://doi.org/10.5194/hess-24-1611-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-24-1611-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 4

Research article

|

06 Apr 2020

Research article |

| 06 Apr 2020

Influence of multidecadal variability on high and low flows: the case of the Seine basin

Rémy Bonnet, Julien Boé, and Florence Habets

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Final revised paper (published on 06 Apr 2020)
Preprint (discussion started on 16 Jul 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Referee Comment', Anonymous Referee #1, 26 Aug 2019
- AC1: 'Reply to Referee #1', Rémy Bonnet, 29 Oct 2019
RC2: 'Work on the write up', Anonymous Referee #2, 13 Sep 2019
- AC2: 'Reply to Referee #2', Rémy Bonnet, 29 Oct 2019
RC3: 'Reviewer Comments', Anonymous Referee #3, 16 Sep 2019
- AC3: 'Reply to Referee #3', Rémy Bonnet, 29 Oct 2019

Peer-review completion

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

ED: Reconsider after major revisions (further review by editor and referees) (08 Nov 2019) by Niko Wanders

AR by Rémy Bonnet on behalf of the Authors (20 Nov 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (20 Dec 2019) by Niko Wanders

RR by Anonymous Referee #1 (20 Jan 2020)

RR by Anonymous Referee #3 (30 Jan 2020)

Suggestions for revision or reasons for rejection

Influence of multidecadal variability on high and low flows: the case of the Seine basin

First I would like to commend the authors on their rigorous response to previous comments. Their work has considerably improved the manuscript. I am now happy to recommend publication with minor corrections and do not need to see the paper again. The key points to deal with are:

i) some further information on the significance testing using the t-test in the results section. Some detail is in the caption of relevant figures but not in the text so far as I can see. It would help the reader if t-test was flagged in text. The word significant is used a lot in results section but no indication of when it is used in its statistical sense – please indicate using p-values throughout the manuscript.

ii) the concluding section is long and I recommend including sub-sections to help the reader.

iii) some tightening of the language and avoidance of repetition is still needed. I indicate some points I noted below.

Page1
Line 6 – delete interesting
Line 7 – replace reconstitution with reconstruction keep same wording thoughout. Reword to ‘allows analysis of…’
Line 12-13 – reword to ‘The multidecadal hydroclimate variations also influence high and low flows …’
Line 14-15 – reword to …’particularly through groundwater-river exchanges.’
Line 17 – last sentence is too vague
Page 2
Line 4 – flow not flows
Line 11 – over rather than on and delete ‘especially over the coming decades’
Line 24 – replace ‘which he attributes to change’ with ‘ attributed to changes’
Line 32 – change to ‘ and North Atlantic SSTs during…’
Page 3
Line 7 – delete ‘by the specialists of decadal climate variability and predictability, with….and replace with , as has.
Line 9 – delete this sentence
Line 33 – replace sentence beginning ‘A major interest…’ with ‘The existence of long observational series are useful for developing and evaluating the reconstructions.
Page 4
Line 3 - delete therefore
Line 16 – comma after series, comma after lengths
Line 31 – not sure what daily series of reference means…delete
Page 5
Line 2 – platform, not plateform – here and throughout
Line 6 – delete the before version
Line 21 – insert of before observation
Line 26 – move period to before 1958-present.
Line 27 – delete ‘in the following’
Page 6
Line 5 – delete ‘interest of this’ and ‘that it is’
Line 7 – delete beforehand
Line 30 – replace An with the
Page 7
Line 8-10 – recommend deleting this sentence as already have this information
Line 13 – replace in with of and delete the before closest
Line 17 sample of 5000 rather than 5000 ones
Line 30 – replace , and with together
Page 8
Line 9 – reword to…consists of selecting the Safran grid point closest to…
Line 10 – replace on with over
Page 9
Line 3 only should be after constrained
Line 5 – replace on with for
Line 6 – replace with with in and on with over
Line 7 – comma after reference
Line 8 – replace on with for
Line 15 – delete even
Line 17 – replace rather with more
Page 10
Line 7 For the later period…
Line 12 – replace with the largest in the reconstruction
Line 28 – his?
Page 11
Line 4 – ‘consistent with not consistently with
Line 5 replace on with using, delete ‘As said in the introduction,’
Line 8 – please don’t call your own results interesting, just report them. Start sentence with Due to the extended length…
Line 10 Repalce It with This
Line 15 replace on the Seine with in the Seine
Line 16- identified from not on
Line 23 – what do you mean by significant is this formal test, then report test and p-value in text. Same throughout.
Line 32 flow variations not flows variations
Page 12
Use of significant throughout needs to be more formal
Line 26 – insert modulating before multidecadal
Page 13
Line 2 – two thirds not 2/3
Line 5 – does this finding have implications for how hydrological models are calibrated here and in other studies?
Line 6 – replace against with over.
Line 17 – replace lower with fewer
Line 18 replace ‘bears resemblance with the NAO, but with slight shift’ with ‘ resembles the NAO, but with a slight..’
Line 22 – warmer surface temperatures relative to what/when?
Page 14
Line 1 – Pacific Decadal Variability
Line 10 – p-value?>
Line 15 – delete very interestingly
Line 16 for the periods not on
Line 17 – for spring river flows
Line 18 – over the period or for the period not on the period.
Line 21 – delete as said in the introduction
Line 25 – on a considerably longer period
Line 26 – connection, not teleconnection – you do not define this term.
Page 15
Line 18 – they not there
Line 20 – replace superior to with greater than
Line 24 – reword to ‘To further understand the influence…’
Line 26 – drought in the Seine basin, not of
Line 27 – what do you mean by strongest in reference to drought?
Line 30 – what is climatological groundwater levels.
Page 16
Line 3 – delete down
Line 4 – groundwater to river?
Line 8 – delete from allowed to variations.
Line 11 – delete should it and insert it after had
Line 19 – replace interesting with useful
Line 17 – what do you mean by not state of the art. This is a vague statement. Please expand.
Page 17
Line 18 – Consistent with, not consistently with
Line 20-21 – delete sentence starting Multidecadal…
Line 23 – reword to ‘…until summer, regulating the runoff to precipitation ratio.’
Line 24 – replace play with impact and delete on before river
Line 27 – replace longest with longer
Line 30 - replace impact of the North Pacific with connection to the North Pacific
Line 33 – replace works with records and infirm with inform
Page 18
Line 8-9 – replace ‘…, that of 1921 and that of 1949’ with in 1921 and 1949
Lines 12-13 – this is a vauge sentence. Please explain how and why if retaining.
Line 16 – delete , yet

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RR by Anonymous Referee #2 (05 Feb 2020)

ED: Publish subject to minor revisions (review by editor) (17 Feb 2020) by Niko Wanders

AR by Rémy Bonnet on behalf of the Authors (27 Feb 2020) Author's response Manuscript

ED: Publish as is (03 Mar 2020) by Niko Wanders

Short summary

In this paper, the multidecadal variations of the Seine basin since the 1850s are investigated, based on a new hydrometeorological reconstruction derived from hydrological modeling. The hydrological and climatic mechanisms underlying these variations are highlighted. The analysis of the hydrometeorological reconstruction shows that high and low flows are influenced by these multidecadal hydroclimate variations.