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Musetti de Assis, Carlos Augusto [Verfasser:in]; Cotrim da Cunha, Leticia [Verfasser:in]; Queiroz Pinho, Luana [Verfasser:in]; Fernandes, Alexandre Macedo [Verfasser:in]; Cunha de Araujo Filho, Moacyr [Verfasser:in]

Reconstruction of the marine carbonate system at the Western Tropical Atlantic: trends and variabilities from 20 years of the PIRATA program

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  • Medientyp: E-Artikel
  • Titel: Reconstruction of the marine carbonate system at the Western Tropical Atlantic: trends and variabilities from 20 years of the PIRATA program
  • Beteiligte: Musetti de Assis, Carlos Augusto [Verfasser:in]; Cotrim da Cunha, Leticia [Verfasser:in]; Queiroz Pinho, Luana [Verfasser:in]; Fernandes, Alexandre Macedo [Verfasser:in]; Cunha de Araujo Filho, Moacyr [Verfasser:in]
  • Erschienen: Frontiers, 2024-07-01
  • Sprache: Englisch
  • DOI: https://doi.org/10.3389/fmars.2024.1286960
  • Entstehung:
  • Anmerkungen: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Beschreibung: The Western Tropical Atlantic Ocean (WTAO) is crucial for understanding CO2 dynamics due to inputs from major rivers (Amazon and Orinoco), substantial rainfall from the Intertropical Convergence Zone (ITCZ), and CO2-rich waters from equatorial upwelling. This study, spanning 1998 to 2018, utilized sea surface temperature (SST) and sea surface salinity (SSS) data from the PIRATA buoy at 8°N 38°W to reconstruct the surface marine carbonate system. Empirical models derived TA and DIC from SSS, with subsequent estimation of pH and fCO2 from TA, DIC, SSS, and SST data. Linear trend analysis showed statistically significant temporal trends: DIC and fCO2 increased and pH decreased, although DIC did not show any trend after data was de-seasoned. Rainfall analysis revealed distinct dry (July to December) and wet (January to June) seasons, aligning with lower and higher freshwater influence, respectively. TA, DIC, and pH correlated positively with SSS, exhibiting higher values during the dry season and lower values during the wet season. Conversely, fCO2 correlated positively with SST, showcasing higher values during the wet season and lower values during the dry season. This emphasizes the influential roles of SSS and SST variability in CO2 solubility within the region.
  • Zugangsstatus: Freier Zugang