Holocene migration of oceanic front systems over the Conrad Rise in the Indian Sector of the Southern Ocean

2011 ◽  
Vol 27 (2) ◽  
pp. 203-210 ◽  
Author(s):  
Kota Katsuki ◽  
Minoru Ikehara ◽  
Yusuke Yokoyama ◽  
Masako Yamane ◽  
Boo-Keun Khim
Keyword(s):  
Southern Ocean ◽  
Oceanic Front ◽  
Indian Sector

Fronts, water masses and heat content variability in the Western Indian sector of the Southern Ocean during austral summer 2004

2006 ◽  
Vol 63 (1-2) ◽  
pp. 20-34 ◽  
Author(s):  
N. Anilkumar ◽  
Alvarinho J. Luis ◽  
Y.K. Somayajulu ◽  
V. Ramesh Babu ◽  
M.K. Dash ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Heat Content ◽  
Austral Summer ◽  
Water Masses ◽  
Indian Sector

Biogeographic distribution of extant Coccolithophores in the Indian sector of the Southern Ocean

2017 ◽  
Vol 137 ◽  
pp. 16-30 ◽  
Author(s):  
Shramik M. Patil ◽  
Rahul Mohan ◽  
Suhas S. Shetye ◽  
Sahina Gazi ◽  
Karl-Heinz Baumann ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Indian Sector

scholarly journals Seasonal variations and drivers of surface ocean pCO 2 in the Seasonal Ice Zone of the Eastern Indian Sector, Southern Ocean

2021 ◽  
Author(s):  
Manami Tozawa ◽  
Daiki Nomura ◽  
Shin−ichiro Nakaoka ◽  
Masaaki Kiuchi ◽  
Kaihe Yamazaki ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Seasonal Variations ◽  
Surface Ocean ◽  
Indian Sector ◽  
Seasonal Ice Zone

scholarly journals Draft Genome Report of Bacillus altitudinis SORB11, Isolated from the Indian Sector of the Southern Ocean

2017 ◽  
Vol 5 (23) ◽  
Author(s):  
Urmi Halder ◽  
Aparna Banerjee ◽  
Vasvi Chaudhry ◽  
Rajeev K. Varshney ◽  
Shrikant Mantri ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Uv Radiation ◽  
Genome Sequence ◽  
Draft Genome ◽  
Resistance Mechanism ◽  
Sequence Information ◽  
Content Type ◽  
Bacillus Altitudinis ◽  
Genome Sequence Information ◽  
Indian Sector

ABSTRACT Here, we present the draft genome sequence of Bacillus altitudinis SORB11, which is tolerant to UV radiation. The strain was isolated from the Indian sector of the Southern Ocean at a depth of 3.8 km. The genome sequence information reported here for B. altitudinis SORB11 gives the basis of its UV resistance mechanism and provides data for further comparative studies with other bacteria resistant to UV radiation.

The Southern Ocean carbon sink 1985-2018: first results of the RECCAP2 project

2021 ◽  
Author(s):  
Judith Hauck ◽  
Luke Gregor ◽  
Cara Nissen ◽  
Eric Mortenson ◽  
Seth Bushinsky ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Seasonal Cycle ◽  
Carbon Sink ◽  
Global Ocean ◽  
Biogeochemical Models ◽  
Wide Range ◽  
Data Products ◽  
First Results ◽  
Ocean Carbon ◽  
Indian Sector

<p>The Southern Ocean is the main gateway for anthropogenic CO<sub>2</sub> into the ocean owing to the upwelling of old water masses with low anthropogenic CO<sub>2</sub> concentration, and the transport of the newly equilibrated surface waters into the ocean interior through intermediate, deep and bottom water formation. Here we present first results of the Southern Ocean chapter of RECCAP2, which is the Global Carbon Project’s second systematic study on Regional Carbon Cycle Assessment and Processes. In the Southern Ocean chapter, we aim to assess the Southern Ocean carbon sink 1985-2018 from a wide range of available models and data sets, and to identify patterns of regional and temporal variability, model limitations and future challenges.</p><p>We gathered global and regional estimates of the air-sea CO<sub>2</sub> flux over the period 1985-2018 from global ocean biogeochemical models, surface pCO<sub>2</sub>-based data products, and data-assimilated models. The analysis on the Southern Ocean quantified geographical patterns in the annual mean and seasonal amplitude of air-sea CO<sub>2</sub> flux, with results presented here aggregated to the level of large-scale ocean biomes.</p><p>Considering the suite of observed and modelled estimates, we found that the subtropical seasonally stratified (STSS) biome stands out with the largest air-sea CO<sub>2</sub> flux per area and a seasonal cycle with largest ocean uptake of CO<sub>2</sub> in winter, whereas the ice (ICE) biome is characterized by a large ensemble spread and a pronounced seasonal cycle with the largest ocean uptake of CO<sub>2</sub> in summer. Connecting these two, the subpolar seasonally stratified (SPSS) biome has intermediate flux densities (flux per area), and most models have difficulties simulating the seasonal cycle with strongest uptake during the summer months.</p><p>Our analysis also reveals distinct differences between the Atlantic, Pacific and Indian sectors of the aforementioned biomes. In the STSS, the Indian sector contributes most to the ocean carbon sink, followed by the Atlantic and then Pacific sectors. This hierarchy is less pronounced in the models than in the data-products. In the SPSS, only the Atlantic sector exhibits net CO<sub>2</sub> uptake in all years, likely linked to strong biological production. In the ICE biome, the Atlantic and Pacific sectors take up more CO<sub>2</sub> than the Indian sector, suggesting a potential role of the Weddell and Ross Gyres.</p><p>These first results confirm the global relevance of the Southern Ocean carbon sink and highlight the strong regional and interannual variability of the Southern Ocean carbon uptake in connection to physical and biogeochemical processes.</p>

Meridional variations in N* and Si* along 57°30′E and 47°E transects in the indian sector of the Southern Ocean during austral summer 2011

2020 ◽  
Vol 178 ◽  
pp. 104846 ◽  
Author(s):  
Bhaskar V. Parli ◽  
Deepti R.G. Dessai ◽  
N. Anilkumar ◽  
Racheal Chacko ◽  
Sini Pavithran
Keyword(s):  
Southern Ocean ◽  
Austral Summer ◽  
Indian Sector
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