scholarly journals Seasonal Variation in the Correlation Between Anomalies of Sea Level and Chlorophyll in the Antarctic Circumpolar Current

2018 ◽  
Vol 45 (10) ◽  
pp. 5011-5019 ◽  
Author(s):  
Hajoon Song ◽  
Matthew C. Long ◽  
Peter Gaube ◽  
Ivy Frenger ◽  
John Marshall ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Sea Level ◽  
Antarctic Circumpolar Current ◽  
Circumpolar Current ◽  
The Antarctic

scholarly journals Response of the Antarctic Circumpolar Current to Atmospheric Variability

2008 ◽  
Vol 21 (12) ◽  
pp. 3020-3039 ◽  
Author(s):  
J. B. Sallée ◽  
K. Speer ◽  
R. Morrow
Keyword(s):  
Sea Level ◽  
Southern Hemisphere ◽  
Antarctic Circumpolar Current ◽  
Southern Oscillation ◽  
Atmospheric Forcing ◽  
Atmospheric Variability ◽  
Central Pacific ◽  
Geographical Regions ◽  
Circumpolar Current ◽  
The Antarctic

Abstract Historical hydrographic profiles, combined with recent Argo profiles, are used to obtain an estimate of the mean geostrophic circulation in the Southern Ocean. Thirteen years of altimetric sea level anomaly data are then added to reconstruct the time variable sea level, and this new dataset is analyzed to identify and monitor the position of the two main fronts of the Antarctic Circumpolar Current (ACC) during the period 1993–2005. The authors relate their movements to the two main atmospheric climate modes of the Southern Hemisphere: the Southern Annular Mode (SAM) and the El Niño–Southern Oscillation (ENSO). The study finds that although the fronts are steered by the bathymetry, which sets their mean pathway on first order, in flat-bottom areas the fronts are subject to large meandering because of mesoscale activity and atmospheric forcing. While the dominant mode of atmospheric variability in the Southern Hemisphere, SAM, is relatively symmetric, the oceanic response of the fronts is not, showing substantial regional differences. Around the circumpolar belt the fronts vary in latitude, exposing them to different Ekman transport anomalies induced by the SAM. Three typical scenarios occur in response to atmospheric forcing: poleward movement of the frontal structure in the Indian Basin during positive SAM events, an equatorward movement in the central Pacific, and an intensification without substantial meridional movement in the Indo-Pacific basin. The study also shows the geographical regions that are dominated by a SAM or ENSO response at low and high frequencies.

scholarly journals Nonlinear Differential Equations Modeling the Antarctic Circumpolar Current

2021 ◽  
Vol 23 (4) ◽  
Author(s):  
Jifeng Chu ◽  
Kateryna Marynets
Keyword(s):  
Fixed Point ◽  
Differential Equations ◽  
Boundary Conditions ◽  
Topological Degree ◽  
Antarctic Circumpolar Current ◽  
Fixed Point Theorems ◽  
Nonlinear Differential Equations ◽  
Existence Results ◽  
Circumpolar Current ◽  
The Antarctic

AbstractThe aim of this paper is to study one class of nonlinear differential equations, which model the Antarctic circumpolar current. We prove the existence results for such equations related to the geophysical relevant boundary conditions. First, based on the weighted eigenvalues and the theory of topological degree, we study the semilinear case. Secondly, the existence results for the sublinear and superlinear cases are proved by fixed point theorems.

scholarly journals Distinct Oceanic Microbiomes From Viruses to Protists Located Near the Antarctic Circumpolar Current

2018 ◽  
Vol 9 ◽  
Author(s):  
Flavia Flaviani ◽  
Declan C. Schroeder ◽  
Karen Lebret ◽  
Cecilia Balestreri ◽  
Andrea C. Highfield ◽  
...  
Keyword(s):  
Antarctic Circumpolar Current ◽  
Circumpolar Current ◽  
The Antarctic

scholarly journals The Antarctic Circumpolar Current as a diversification trigger for deep-sea octocorals

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Luisa F. Dueñas ◽  
Dianne M. Tracey ◽  
Andrew J. Crawford ◽  
Thomas Wilke ◽  
Phil Alderslade ◽  
...  
Keyword(s):  
Deep Sea ◽  
Antarctic Circumpolar Current ◽  
Circumpolar Current ◽  
The Antarctic

Eddy-induced carbon transport across the Antarctic Circumpolar Current

2017 ◽  
Vol 31 (9) ◽  
pp. 1368-1386 ◽  
Author(s):  
Sébastien Moreau ◽  
Alice Della Penna ◽  
Joan Llort ◽  
Ramkrushnbhai Patel ◽  
Clothilde Langlais ◽  
...  
Keyword(s):  
Antarctic Circumpolar Current ◽  
Circumpolar Current ◽  
The Antarctic ◽  
Carbon Transport
Sign in / Sign up

Export Citation Format

Share Document