scholarly journals Marine productivity enhancement around Bouvet and the South Sandwich Islands (Southern Ocean)

1992 ◽  
Vol 88 ◽  
pp. 41-53 ◽  
Author(s):  
R Perissinotto ◽  
RK Laubscher ◽  
CD McQuaid
Keyword(s):  
Southern Ocean ◽  
The South ◽  
South Sandwich Islands ◽  
Marine Productivity ◽  
Productivity Enhancement

Observations of cetaceans in the south-east Atlantic sector of the Southern Ocean, during summer 2008

Polar Biology ◽  
2014 ◽  
Vol 37 (6) ◽  
pp. 891-895
Author(s):  
L. Nøttestad ◽  
B. A. Krafft ◽  
H. Søiland ◽  
G. Skaret
Keyword(s):  
Southern Ocean ◽  
The South ◽  
East Atlantic ◽  
Atlantic Sector

The role of tides on the carbonate chemistry of a coastal polynya in the south-eastern Weddell Sea

2021 ◽  
Author(s):  
Elise Droste ◽  
Melchor González Dávila ◽  
Juana Magdalena Santana Casiano ◽  
Mario Hoppema ◽  
Gerd Rohardt ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Weddell Sea ◽  
Water Masses ◽  
Total Alkalinity ◽  
The South ◽  
Carbonate Chemistry ◽  
Large Variability ◽  
South Eastern ◽  
Coastal Polynya ◽  
Eastern Weddell Sea

<p>Tides have a large impact on coastal polynyas around Antarctica. We investigate the effect of semi-diurnal tidal cycles on the seawater carbonate chemistry in a coastal polynya hugging the Ekström Ice Shelf in the south-eastern Weddell Sea. This region experiences some of the strongest tides in the Southern Ocean. We assess the implications for the contribution of coastal polynyas to the carbon dioxide (CO<sub>2</sub>) air-sea flux of the Weddell Sea.</p><p>Two site visits, in January 2015 and January 2019, are intercompared in terms of the dissolved inorganic carbon (DIC) concentration, total alkalinity, pH, and CO<sub>2</sub> partial pressure (pCO<sub>2</sub>). The tides induce large variability in the carbonate chemistry of the coastal polynya in the austral summer: DIC concentrations vary between 2174 and 2223 umol kg<sup>-1</sup>.</p><p>The tidal fluctuation in the DIC concentration can swing the polynya from a sink to a source of atmospheric CO<sub>2 </sub>on a semi-diurnal timescale. We attribute these changes to the mixing of different water masses. The amount of variability induced by tides depends on – and is associated with – large scale oceanographic and biogeochemical processes that affect the characteristics and presence of the water masses being mixed, such as the rate of sea ice melt.</p><p>Sampling strategies in Antarctic coastal polynyas should always take tidal influences into account. This would help to reduce biases in our understanding of how coastal polynyas contribute to the CO<sub>2</sub> uptake by the Southern Ocean.</p>

scholarly journals Erratum: Corrigendum: Enhanced Southern Ocean marine productivity due to fertilization by giant icebergs

2016 ◽  
Vol 9 (9) ◽  
pp. 728-728
Author(s):  
Luis P. A. M. Duprat ◽  
Grant R. Bigg ◽  
David J. Wilton
Keyword(s):  
Southern Ocean ◽  
Marine Productivity

Productivity Enhancement of Horizontal Heavy Oil Wells in the South of Oman

2009 ◽  
Author(s):  
Bassam Zreik ◽  
Ahmed Salim Al-Hattali ◽  
Khalfan Hamoud Al-Busaidi ◽  
Mohamed N. Bushara ◽  
Surendra Kumar Tripathy
Keyword(s):  
Heavy Oil ◽  
Oil Wells ◽  
The South ◽  
Productivity Enhancement

Ice-rafted volcanic ash in the South Atlantic sector of the Southern Ocean during the last 100,000 years

1983 ◽  
Vol 53 (4) ◽  
pp. 291-312 ◽  
Author(s):  
David G Smith ◽  
Michael T Ledbetter ◽  
Paul F Ciesielski
Keyword(s):  
Southern Ocean ◽  
Volcanic Ash ◽  
South Atlantic ◽  
The South ◽  
Atlantic Sector

scholarly journals Matching zooplankton abundance and environment in the South Indian Ocean and Southern Ocean

2020 ◽  
Vol 163 ◽  
pp. 103347
Author(s):  
Claire Godet ◽  
Marine Robuchon ◽  
Boris Leroy ◽  
Cédric Cotté ◽  
Alberto Baudena ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Southern Ocean ◽  
Zooplankton Abundance ◽  
The South ◽  
South Indian Ocean ◽  
South Indian

scholarly journals Pyrogenic iron: The missing link to high iron solubility in aerosols

2019 ◽  
Vol 5 (5) ◽  
pp. eaau7671 ◽  
Author(s):  
Akinori Ito ◽  
Stelios Myriokefalitakis ◽  
Maria Kanakidou ◽  
Natalie M. Mahowald ◽  
Rachel A. Scanza ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Southern Ocean ◽  
Atmospheric Deposition ◽  
Field Data ◽  
Biological Productivity ◽  
Iron Solubility ◽  
Field Campaigns ◽  
Anthropogenic Perturbations ◽  
Marine Productivity ◽  
Multiple Field

Atmospheric deposition is a source of potentially bioavailable iron (Fe) and thus can partially control biological productivity in large parts of the ocean. However, the explanation of observed high aerosol Fe solubility compared to that in soil particles is still controversial, as several hypotheses have been proposed to explain this observation. Here, a statistical analysis of aerosol Fe solubility estimated from four models and observations compiled from multiple field campaigns suggests that pyrogenic aerosols are the main sources of aerosols with high Fe solubility at low concentration. Additionally, we find that field data over the Southern Ocean display a much wider range in aerosol Fe solubility compared to the models, which indicate an underestimation of labile Fe concentrations by a factor of 15. These findings suggest that pyrogenic Fe-containing aerosols are important sources of atmospheric bioavailable Fe to the open ocean and crucial for predicting anthropogenic perturbations to marine productivity.

scholarly journals Regional cooling in the South Pacific sector of the Southern Ocean due to global warming

2005 ◽  
Vol 32 (19) ◽  
pp. n/a-n/a ◽  
Author(s):  
Dong-Hoon Kim ◽  
Norikazu Nakashiki ◽  
Yoshikatsu Yoshida ◽  
Koki Maruyama ◽  
Frank O. Bryan
Keyword(s):  
Global Warming ◽  
Southern Ocean ◽  
South Pacific ◽  
The South
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