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Quasi‐Real‐Time and High‐Resolution Spatiotemporal Distribution of Ocean Anthropogenic CO 2
Author(s) -
Li B. F.,
Watanabe Y. W.,
Hosoda S.,
Sato K.,
Nakano Y.
Publication year - 2019
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2018gl081639
Subject(s) - alkalinity , biogeochemical cycle , argo , seawater , dissolved organic carbon , salinity , environmental science , oceanography , total inorganic carbon , carbon cycle , carbon fibers , carbon dioxide , environmental chemistry , geology , ecosystem , chemistry , ecology , materials science , organic chemistry , composite number , composite material , biology
Increasing marine uptake of anthropogenic CO 2 (C ant ) causes global ocean acidification. To obtain a high‐resolution spatiotemporal distribution of oceanic carbon chemistry , we developed new parameterizations of the seawater total alkalinity, and dissolved inorganic carbon from the ocean's surface to 2,000‐m depth by using dissolved oxygen, water temperature ( T ), salinity ( S ), and pressure ( P ) data. Using the values of total alkalinity and dissolved inorganic carbon predicted by dissolved oxygen, T , S , and P data derived from autonomous biogeochemical Argo floats, we described the distribution of oceanic C ant in the 2000s in the subarctic North Pacific at high spatiotemporal resolution. The C ant was found about 300 m deeper than during the 1990s; its average inventory to 2,000 m was 24.8 ± 10.2 mol/m 2 , about 20% higher than the 1990s average. Future application of parameterizations to global biogeochemical Argo floats data should allow the detailed global mapping of spatiotemporal distributions of CO 2 parameters.