Articles | Volume 19, issue 22
https://doi.org/10.5194/bg-19-5151-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-5151-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Metabolic alkalinity release from large port facilities (Hamburg, Germany) and impact on coastal carbon storage
Mona Norbisrath
CORRESPONDING AUTHOR
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Institute for Chemistry and Biology of the Marine Environment, Carl
von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
Johannes Pätsch
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Institute of Oceanography, University Hamburg, 20146 Hamburg, Germany
Kirstin Dähnke
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Tina Sanders
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Gesa Schulz
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Institute of Geology, Center for Earth System Research and
Sustainability (CEN), University Hamburg, 20146 Hamburg, Germany
Justus E. E. van Beusekom
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Helmuth Thomas
Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Institute for Chemistry and Biology of the Marine Environment, Carl
von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
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- Dissolved nitric oxide in the lower Elbe Estuary and the Port of Hamburg area R. Ingeniero et al. 10.5194/bg-21-3425-2024
- Denitrification performance and in-situ fermentation mechanism of the wastepaper-flora slow-release carbon source Y. Cui et al. 10.1016/j.biortech.2023.129074
- Recent inorganic carbon increase in a temperate estuary driven by water quality improvement and enhanced by droughts L. Rewrie et al. 10.5194/bg-20-4931-2023
- Aerobic and anaerobic mineralisation of sediment organic matter in the tidal River Elbe J. Gebert & F. Zander 10.1007/s11368-024-03799-6
- Large-scale nutrient and carbon dynamics along the river-estuary-ocean continuum N. Kamjunke et al. 10.1016/j.scitotenv.2023.164421
- Seasonal variability of nitrous oxide concentrations and emissions in a temperate estuary G. Schulz et al. 10.5194/bg-20-3229-2023
- Alkalinity and nitrate dynamics reveal dominance of anammox in a hyper-turbid estuary M. Norbisrath et al. 10.5194/bg-20-4307-2023
- Soil carbon dioxide levels control salt marsh alkalinity generation P. Tutiyasarn et al. 10.1002/lno.70062
- Alkalinity sources in the Dutch Wadden Sea M. Norbisrath et al. 10.5194/os-20-1423-2024
- The microbial carbon pump and climate change N. Jiao et al. 10.1038/s41579-024-01018-0
- Microbial responses to ocean deoxygenation: Revisiting the impacts on organic carbon cycling Q. Chen et al. 10.1016/j.isci.2025.112826
11 citations as recorded by crossref.
- Dissolved nitric oxide in the lower Elbe Estuary and the Port of Hamburg area R. Ingeniero et al. 10.5194/bg-21-3425-2024
- Denitrification performance and in-situ fermentation mechanism of the wastepaper-flora slow-release carbon source Y. Cui et al. 10.1016/j.biortech.2023.129074
- Recent inorganic carbon increase in a temperate estuary driven by water quality improvement and enhanced by droughts L. Rewrie et al. 10.5194/bg-20-4931-2023
- Aerobic and anaerobic mineralisation of sediment organic matter in the tidal River Elbe J. Gebert & F. Zander 10.1007/s11368-024-03799-6
- Large-scale nutrient and carbon dynamics along the river-estuary-ocean continuum N. Kamjunke et al. 10.1016/j.scitotenv.2023.164421
- Seasonal variability of nitrous oxide concentrations and emissions in a temperate estuary G. Schulz et al. 10.5194/bg-20-3229-2023
- Alkalinity and nitrate dynamics reveal dominance of anammox in a hyper-turbid estuary M. Norbisrath et al. 10.5194/bg-20-4307-2023
- Soil carbon dioxide levels control salt marsh alkalinity generation P. Tutiyasarn et al. 10.1002/lno.70062
- Alkalinity sources in the Dutch Wadden Sea M. Norbisrath et al. 10.5194/os-20-1423-2024
- The microbial carbon pump and climate change N. Jiao et al. 10.1038/s41579-024-01018-0
- Microbial responses to ocean deoxygenation: Revisiting the impacts on organic carbon cycling Q. Chen et al. 10.1016/j.isci.2025.112826
Latest update: 01 Jul 2025
Short summary
Total alkalinity (TA) regulates the oceanic storage capacity of atmospheric CO2. TA is also metabolically generated in estuaries and influences coastal carbon storage through its inflows. We used water samples and identified the Hamburg port area as the one with highest TA generation. Of the overall riverine TA load, 14 % is generated within the estuary. Using a biogeochemical model, we estimated potential effects on the coastal carbon storage under possible anthropogenic and climate changes.
Total alkalinity (TA) regulates the oceanic storage capacity of atmospheric CO2. TA is also...
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