Ocean-atmosphere turbulent CO2 fluxes at Drake Passage and Bransfield Strait.

Autor: Rodrigues CCF; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil., Santini MF; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil., Lima LS; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil., Sutil UA; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil., Carvalho JT; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil., Cabrera MJ; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil., Rosa EB; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil., Burns JW; University of Kansas, Center for Remote Sensing of Ice Sheets (CReSIS), National Science Foundation (NSF), 2335 Irving Hill Road, Lawrence, 66045, Kansas, USA., Pezzi LP; National Institute for Space Research (INPE), Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division (OBT), Av. dos Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil.
Jazyk: angličtina
Zdroj: Anais da Academia Brasileira de Ciencias [An Acad Bras Cienc] 2023 Dec 01; Vol. 95 (suppl 3), pp. e20220652. Date of Electronic Publication: 2023 Dec 01 (Print Publication: 2023).
DOI: 10.1590/0001-3765202320220652
Abstrakt: The oceans play an important role in mitigating climate change by acting as large carbon sinks, especially at high latitude regions. The Southern Ocean plays a major role in the global carbon dioxide (CO2) budget. This work aims to investigate the behavior of turbulent CO2 fluxes and quantify it under different atmospheric and oceanic conditions in the Drake Passage and Bransfield Strait regions on high spatiotemporal resolutions when compared with traditional CO2 fluxes estimations. The atmospheric stability condition was used to corroborate the description of CO2 fluxes. In situ, satellite, and reanalysis data from 08 to 22 November 2018, were used in this work. The Bransfield Strait uptaked 38.59% more CO2 than the Drake Passage due to the cold and fresh waters, allied to the influence of glacial meltwater dilution. Which increased the CO2 solubility, directing the CO2 fluxes to the ocean. The Bransfield Strait had predominantly stable atmospheric conditions, which contributed to this region acting as a CO2 sink. The Drake Passage, on average, behaved as a CO2 sink, mainly due to physical characteristics. This research contributes to a better understanding of the Southern Ocean's role in the global carbon balance on scales that are very difficult to monitor.
Databáze: MEDLINE
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