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  • 1
    Online Resource
    Online Resource
    Cham :Springer International Publishing AG,
    Keywords: Biogeochemistry--Baltic Sea. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (119 pages)
    Edition: 1st ed.
    ISBN: 9783319616995
    Series Statement: Springer Oceanography Series
    Language: English
    Note: Intro -- Preface -- Contents -- About the Authors -- Abbreviations -- 1 Introduction -- 1.1 History of CO2 System Research in the Baltic Sea -- 1.2 Objectives of This Book -- References -- 2 The Marine CO2 System and Its Peculiarities in the Baltic Sea -- 2.1 Atmospheric CO2 Over the Baltic Sea -- 2.2 Aqueous Equilibrium Chemistry of CO2 -- 2.3 Measurable Variables of the Marine CO2 System -- 2.3.1 CO2 Equilibrium Fugacity and Partial Pressure -- 2.3.2 Total CO2 and pH -- 2.3.3 Alkalinity -- 2.3.4 Physico-Chemical Properties of the Master Variables -- 2.4 CO2 Air-Sea Gas Exchange -- References -- 3 The Main Hydrographic Characteristics of the Baltic Sea -- 3.1 Water Budget and Estuarine Circulation -- 3.2 Seasonality of the Stratification -- 3.3 Stagnation and Inflow Events -- References -- 4 The Database -- 4.1 Studies of the Surface Water CO2 System -- 4.2 Investigations of the Deep Water CO2 Accumulation -- References -- 5 Surface Water Biogeochemistry as Derived from pCO2 Observations -- 5.1 Seasonal and Regional Patterns of pCO2 and CT -- 5.1.1 Characteristics of the pCO2 Time Series -- 5.1.2 Long-Term Changes in pCO2 -- 5.1.3 The Seasonal Fine Structure of the pCO2 -- 5.1.4 From pCO2 Measurements to Total CO2 Data -- 5.2 A Walk Through the Seasons -- 5.2.1 Timing of the Spring Bloom and the Role of Solar Radiation -- 5.2.2 Quantification of Spring Bloom Productivity -- 5.2.3 Nitrogen Supply for the Spring Bloom -- 5.2.4 Net Community Production and Nutrient Consumption -- 5.2.5 The "Blue Water" Period -- 5.2.6 Control of Mid-Summer Net Community Production and N-fixation -- 5.2.7 Estimation of Depth-Integrated N-fixation -- 5.2.8 Autumn Mixing and Upwelling: The Occurrence of a Last Bloom Event -- 5.2.9 Annual CT* Cycling Presented as CT* Versus SST Diagrams -- References. , 6 Organic Matter Mineralization as Reflected in Deep-Water CT Accumulation -- 6.1 Total CO2 Dynamics During Periods of Stagnation and Water Renewal -- 6.2 Organic Matter Mineralization Rates Derived from CT Mass-Balance Calculations -- 6.3 Release and Transformations of Nutrients During OM Mineralization -- References -- 7 Progress Made by Investigations of the CO2 System and Open Questions -- Index.
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  • 2
    Keywords: Earth sciences ; Earth Sciences ; Analytical chemistry ; Geochemistry ; Oceanography ; Geobiology ; Geochemie ; Meereskunde ; Ostsee
    Description / Table of Contents: This book provides a comprehensive review of the biogeochemistry in the Baltic Sea. It is based on the fact that biogeochemical processes that are relevant for the ecological state of the Baltic Sea (and other sea areas), are all in some way related to the production and mineralization of organic matter (biomass) and thus are associated with the consumption or release of CO2. The significant progress with regard to our chemical analytical capabilities concerning the marine CO2 system has facilitated new approaches to study the Baltic Sea biogeochemistry, in particular with regard to a quantitative process understanding. To demonstrate this, the authors present the fundamentals of the marine CO2 system in a theoretically sound, but still intelligible way. This is followed by a comprehensive presentation of our current knowledge about the CO2 system in the Baltic Sea and the implications for our understanding of biogeochemical processes such as production/mineralization of organic matter and the stoichiometry involved, nitrogen fixation, denitrification, and phosphate transformations at varying redox conditions. Finally, the CO2 gas exchange balance and related problems such as acidification are addressed
    Type of Medium: Online Resource
    Pages: Online-Ressource (XII, 110 p. 54 illus, online resource)
    ISBN: 9783319616995
    Series Statement: Springer Oceanography
    Language: English
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