Dissolved Inorganic Carbon

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Table of contents

Chapter 1: Introduction
1. Climate change
2. The global and the oceanic carbon cycle
2.1 The global carbon cycle
2.2 The oceanic carbon cycle
3. Dissolved inorganic carbon in seawater
3.1 The carbonate system
3.2 Inorganic carbon dynamics
3.3 Air-sea CO2 fluxes
4. Continental shelves
5. Thesis objectives
6. Thesis outlines
References
Chapter 2: Seasonal and latitudinal variability of the CO2 system in the western English Channel based on Voluntary Observing Ship (VOS) discrete measurements over three contrasted years
Abstract
1. Introduction
2. Material and Methods
2.1 Surface measurements on the VOS line
2.2 Water column measurements at fixed stations
2.3 Calculation of the partial pressure of CO2 and air-sea CO2 fluxes
2.4 Calculation of the Net Ecosystem Production
3. Results
3.1 Hydrographical setting
3.2 Surface distributions of DO%, Chl-a and nutrients
3.3 Surface distributions of CO2 system parameters
4. Discussion
4.1 Latitudinal dynamics of the carbonate system in the WEC
4.2 Processes controlling the seasonal pCO2 variability
4.3 Air-Sea CO2 exchange
4.4 Estimation of Net Ecosystem Production at the fixed stations
5. Concluding remarks
References
Chapter 3: Spatio-temporal dynamics of biogeochemical processes and air-sea CO2 fluxes in the Western English Channel based on two years of FerryBox deployment
Abstract
1. Introduction
2. Material and Methods
2.1 The VOS line and the FerryBox system
2.2 Bimonthly discrete sampling
2.3 CO2 system and air-sea CO2 fluxes calculation
3. Results and discussion
3.1 Reliability of the FerryBox system
3.2 Observation of the physical structure of the WEC
3.3 Inter-annual dynamics of phytoplankton blooms
3.4 Short time-scale dynamics of pCO2 and air-sea CO2 fluxes
4. Concluding remarks and perspectives
References
Chapter 4: Dynamics of air-sea CO2 fluxes in the north-west European shelf based on Voluntary Observing Ship (VOS) and satellite observations
Abstract
1. Introduction
2. Study area
3. Material and Methods
3.1 FerryBox datasets
3.2 Satellite and other environmental data
3.3 Development of pCO2 algorithms
3.4 SOCAT data
3.5 Calculation of air-sea CO2 fluxes
4. Results and discussion
4.1 Performance of MLR
4.2 Spatial and temporal extrapolation of the algorithms
4.3 Seasonal variability of biogeochemical properties in stratified vs. permanently well-mixed systems
4.4 Inter and multi-annual variability of pCO2 and air-sea CO2 fluxes
5. Concluding remarks and perspectives
References
Chapter 5: Summary, concluding remarks and perspectives
1. Summary
1.1 Three years of bimonthly measurements
1.2 High frequency measurements
1.3 Development of pCO2 algorithms and air-sea CO2 flux in WEC, CS and IS over a decade
1.4 Conclusion
2. Concluding Remarks and Perspectives
2.1 Time-scale discrepancies and other uncertainties of the CO2 system in coastal seas
2.2 Towards global coastal carbon observatories
2.3 Long-term time series and climate change
References