Wallmann et al. (2022): Erosion of carbonate-bearing sedimentary rocks may close the alkalinity budget of the Baltic Sea and support atmospheric CO2 uptake in coastal seas
Klaus Wallmann, Markus Diesing, Florian Scholz, Gregor Rehder, Andrew W. Dale, Michael Fuhr, Erwin Suess IN: Front. Mar. Sci., Sec. Coastal Ocean Processes, https://doi.org/10.3389/fmars.2022.968069
The authors investigate the alkalinity budget of the Baltic Sea to identify previously unrecognized alkalinity sources. They quantify the generation of alkalinity and dissolved calcium (Ca) in this marginal sea applying simple mass balance calculations. Using this approach, the authors identify alkalinity and Ca sources of approximately 324 Gmol yr-1 and 122 Gmol yr-1, respectively, that cannot be ascribed to the riverine input.