Articles | Volume 14, issue 13
Biogeosciences, 14, 3221–3237, 2017
https://doi.org/10.5194/bg-14-3221-2017
Biogeosciences, 14, 3221–3237, 2017
https://doi.org/10.5194/bg-14-3221-2017

Research article 06 Jul 2017

Research article | 06 Jul 2017

Spatial variability in surface-water pCO2 and gas exchange in the world's largest semi-enclosed estuarine system: St. Lawrence Estuary (Canada)

Ashley Dinauer and Alfonso Mucci

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (11 Apr 2017) by Gwenaël Abril
AR by Ashley Dinauer on behalf of the Authors (02 May 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (08 May 2017) by Gwenaël Abril
RR by Anonymous Referee #2 (25 May 2017)
ED: Publish subject to technical corrections (26 May 2017) by Gwenaël Abril
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Short summary
Because of its large physical dimensions and unimpeded connection to the Atlantic Ocean, the St. Lawrence Gulf and Estuary encompass both estuarine and marine environments. The underlying physical and biogeochemical processes are reflected in the spatial pattern of surface-water pCO2 (139–765 µatm). The shallow partially mixed upper estuary was a CO2 source due to microbial respiration, whereas the deep stratified lower estuary was generally a CO2 sink due to phytoplankton photosynthesis.
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