| Autor: |
Cátia C. Azevedo, Melchor González-Dávila, J. Magdalena Santana-Casiano, David González-Santana, Rui M. A. Caldeira |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2045-2322 |
| DOI: |
10.1038/s41598-024-69177-x |
| Popis: |
Abstract The exchange of trace gases between the atmosphere and the ocean plays a key role in the Earth’s climate. Fluxes at the air-sea interface are affected mainly by wind blowing over the ocean and seawater temperature and salinity changes. This study aimed to quantify the use of CO $$_{2}$$ 2 partial pressure (pCO $$_{2}$$ 2 ) measurements at different depths (1, 5, and 10 m) in ocean surface layers to determine CO $$_{2}$$ 2 fluxes (FCO $$_{2}$$ 2 ) and to investigate the impacts of wind-sheltered and wind-exposed regions on the carbon budget. Vertical profiles of temperature, salinity, and pCO $$_{2}$$ 2 were considered during a daily cycle. pCO $$_{2}$$ 2 profiles exhibited relatively high values during sunny hours, associated with relatively high sea temperatures. However, the largest FCO $$_{2}$$ 2 corresponded with higher wind speeds. Estimated fluxes between measurements at 1 and 10 m depths decreased by 71% in the sheltered region and 44% in the exposed region. According to the SOCAT dataset, at a depth of 5 m, the Atlantic basin emits approximately 0.29 Tg month $$^{-1}$$ - 1 of CO $$_{2}$$ 2 to the atmosphere; nevertheless, our estimates suggest that FCO $$_{2}$$ 2 at the surface is 12.02 Tg month $$^{-1}$$ - 1 , which is 97.6% greater than that at 5 m depth. Therefore, future studies should consider sampling depth to adequately estimate the FCO $$_{2}$$ 2 . |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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