Hydrological, chemical, and isotopic budgets of Lake Chad: a quantitative assessment of evaporation, transpiration and infiltration fluxes

Bouchez, Camille; Goncalves, Julio; Deschamps, Pierre; Vallet-Coulomb, Christine; Hamelin, Bruno; Doumnang, Jean-Claude; Sylvestre, Florence

doi:https://doi.org/10.5194/hess-20-1599-2016

Articles | Volume 20, issue 4

https://doi.org/10.5194/hess-20-1599-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/hess-20-1599-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 20, issue 4

Research article

|

26 Apr 2016

Research article |

| 26 Apr 2016

Hydrological, chemical, and isotopic budgets of Lake Chad: a quantitative assessment of evaporation, transpiration and infiltration fluxes

Camille Bouchez, Julio Goncalves, Pierre Deschamps, Christine Vallet-Coulomb, Bruno Hamelin, Jean-Claude Doumnang, and Florence Sylvestre

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Final revised paper (published on 26 Apr 2016)
Supplement to the final revised paper
Preprint (discussion started on 30 Oct 2015)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC C5429: 'Review of Bouchez et. al.', Stephen Good, 05 Dec 2015
- AC C6674: 'Response to S. Good, Referee', Camille Bouchez, 10 Feb 2016
RC C6018: 'Interactive comment on "Hydrological, chemical and isotopic budgets of Lake Chad: a quantitative assessment of evaporation, transpiration and infiltration fluxes" by C. Bouchez et al.', John Gibson, 08 Jan 2016
- AC C6664: 'Response to J. Gibson, Referee #1', Camille Bouchez, 10 Feb 2016
AC C6682: 'Author comment: error on Fig.3', Camille Bouchez, 10 Feb 2016

Peer-review completion

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

ED: Reconsider after major revisions (10 Feb 2016) by Lixin Wang

AR by Camille Bouchez on behalf of the Authors (22 Mar 2016)

ED: Referee Nomination & Report Request started (25 Mar 2016) by Lixin Wang

RR by John Gibson (27 Mar 2016)

ED: Publish as is (05 Apr 2016) by Lixin Wang

AR by Camille Bouchez on behalf of the Authors (08 Apr 2016)

Short summary

Flows out of Lake Chad are constrained by a modeling of the hydrological, chemical, and isotopic budgets, based on a review of existing data along with new data. This innovative approach allows one to determine the proportions of evaporation, transpiration, and infiltration out of the lake while the two last flows are often neglected in semi-arid environments. Moreover, it allows to investigate the lake hydrological and chemical regulations under the large climatic changes in Sahel since 1950.