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| Ali, Elsheikh B.; Skjelvan, Ingunn; Omar, Abdirahman M.; Olsen, Are; De Lange, Tor E.; Johannessen, Truls; Elageed, Salma. |
| The dynamics of sea surface pCO2 () and air-sea CO2 exchange of the Sudanese coastal Red Sea has for the first time been studied over a full annual cycle (October 2014 - October 2015) based on semi-continuous measurements from moored autonomous sensors. showed a seasonal amplitude of approximately 70 atm, overlaid by a high frequency (3-4 days) signal of around 10 atm. The highest values, of about 440 atm occurred during summer and fall, while the lowest values of about 370 atm occurred during winter. The monthly change was primarily driven by temperature, i.e., heating and cooling of the water surface. Additionally, Dissolved Inorganic Carbon (DIC) and Total Alkalinity (AT) contributed significantly to the observed change in as a consequence of... |
| Tipo: Text |
Palavras-chave: Sea surface pCO2; CO2 flux; Time series; Coastal Red Sea; Seasonality. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00690/80252/83332.pdf |
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| Elageed, Salma. |
| Based on data obtained during the Geochemical Ocean Section Study (GEOSECS)1977, Mer Rouge (MEROU) 1982, and US Joint Global Ocean Flux (JGOFS)1995 studies we have analyzed the processes controlling the total alkalinity (TA) of the whole water column in the Arabian Sea and the Red Sea. The main processes important for the TA variability in area of study are salinity variations, soft tissue production, calcium carbonate formation and dissolution, and sedimentation. For the subsurface waters different processes dominate in the different basins. Regarding spatial variations in surface TA, maximum values occur in the Red Sea and minimum in the upwelling region along the Omani coast in the Arabian Sea. These variations are mainly associated with physical... |
| Tipo: Theses and Dissertations |
Palavras-chave: Alkalinity; Salinity; Sedimentation. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4549 |
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