pH-density relationships in seawater by JM Hernández-Ayón, A Zirino, SG Marinone, R Canino-Herrera, MS Galindo-Bect

“…  In surface waters from the Southern Ocean and from the west coast of Baja California, a relationship was found between pH and water column density. …”
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Impact of combining GRACE and GOCE gravity data on ocean circulation estimates by T. Janjić, J. Schröter, R. Savcenko, W. Bosch, A. Albertella, R. Rummel, O. Klatt

“…With the focus on the Southern Ocean circulation, results of assimilation of multi-mission-altimeter data and the GRACE/GOCE gravity data into the finite element ocean model (FEOM) are investigated. …”
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A detectable change in the air-sea CO 2 flux estimate from sailboat measurements by Jacqueline Behncke, Peter Landschützer, Toste Tanhua

“…By comparing ensembles of data-driven air-sea CO2 fluxes computed with and without sailboat data and applying a detection algorithm, we show that these sailboat observations significantly increase the regional carbon uptake in the North Atlantic and decrease it in the Southern Ocean. While compensating changes in both basins limit the global effect, the Southern Ocean–particularly frontal regions (40°S–60°S) during summertime—exhibited the largest air-sea CO2 flux changes, averaging 20% of the regional mean. …”
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The South Sandwich Islands – a community of meta-populations across all trophic levels by Hart, T, Convey, P

“…The South Sandwich Islands are a relatively pristine volcanic archipelago in the Southern Ocean that experience high levels of natural disturbance. …”

Mid-depth South Atlantic Ocean circulation and chemical stratification during MIS-10 to 12: Implications for atmospheric CO 2 by Dickson, A, Leng, M, Maslin, M

“…In addition, a 500 yr resolution record of the Cape Basin intermediate-deep δ 13C gradient shows that a reduction in deep Southern Ocean ventilation at the end of MIS-11 was consistent with a modeled CO 2 drawdown of ∼21-30 ppm. …”

Sediment source-to-sink processes of the southeastern Indian Ocean during the Late Eocene-Oligocene and their potential significance for paleoclimate by Qingchao Fan, Zhaokai Xu, Tianqi Sun, Tiegang Li, Fengming Chang

“…Understanding the paleoclimate responses in Southern Ocean and its surrounding land can help us to better explore the major climate transition mechanisms in geological history and predict the response ofthe earth system to abrupt climate changes in the future, while, there is still a lack of research on the paleoclimatere sponse of the surrounding land in Southern Ocean.Based on the age framework, major, traceand rare earth element compositions of the deep-sea sediments at Site U1516 of the International Ocean Discovery Program (IODP) 369, we determined that the sediments were mainly from the southwest continent of Australia, and then reconstructed the chemical weathering history of the source area on the tectonic time scale.In addition, we combined with the previous research results to discuss the paleoclimate evolution of continents surrounding Southern Ocean during the Late Eocene-Oligocene climate transition period and its response toglobal climate changes and regional paleogeographic changes.During the Eocene-Oligocene transition (e.g., 34.1 to 33.6 Ma and 31.3 to 29.8 Ma), the paleoclimate in the source area was mainly controlled by the significant changes in the paleogeographic pattern of the adjacent area, which was characterized by the climate conditions tending to bedry and cold and the decrease of chemical weathering intensity on the land surface.During the period of 33.6 to 31.3 Ma and 29.8 to 25.2 Ma, the palaeoclimate of the source area mainly responded to global climate changes.In theformer stage, the paleoclimate changed from dry and cold to wet and hot, the intensity of chemical weathering on the land surface increased correspondingly; In the latter stage, the climate maintained in a relatively stable dry and cold state, the intensity of chemical weathering on the land surface is also weak.…”
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Control of transient climate response and associated sea level rise by deep-ocean mixing by Michio Watanabe, Hiroaki Tatebe, Tatsuo Suzuki, Kaoru Tachiiri

“…In the case where deep-ocean mixing works to enhance ocean stratification in the Pacific intermediate-to-deep layers, because the Pacific water mass is transported to the Southern Ocean by the Pacific meridional overturning circulation, the subsurface stratification in the Southern Ocean is also enhanced and deep wintertime convection there is suppressed. …”
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Using the penguin watch network to examine phenology and breeding success in pygoscelis penguins by Jones, FM

“…This has implications for a number of Southern Ocean bird species, and with precipitation levels expected to increase under climate-change scenarios, continued monitoring is essential. …”

NEMO–ICB (v1.0): interactive icebergs in the NEMO ocean model globally configured at eddy-permitting resolution by R. Marsh, V. O. Ivchenko, N. Skliris, S. Alderson, G. R. Bigg, G. Madec, A. T. Blaker, Y. Aksenov, B. Sinha, A. C. Coward, J. Le Sommer, N. Merino, V. B. Zalesny

“…Iceberg drift patterns, and Southern Ocean iceberg mass, compare favourably with available observations. …”
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Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century by Xianliang L. Pan, Bofeng F. Li, Yutaka W. Watanabe

“…Due to the extreme environment of the Southern Ocean and the limitations of observational techniques, our understanding of the glacier-derived freshening of SOc is still vague. …”
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Formation of "Southern Component Water" in the Late Cretaceous: Evidence from Nd-isotopes by Robinson, SA, Murphy, D, Vance, D, Thomas, D

“…Ocean circulation models for the Late Cretaceous and early Paleogene suggest that significant deep-water production occurred in the Southern Ocean, but cannot constrain when this process commenced or what the temporal relationship was between opening tectonic gateways and Late Cretaceous climatic cooling. …”

Paleoproductivity and deep-sea oxygenation in Cosmonaut Sea since the last glacial maximum: impact on atmospheric CO2 by Liangming Hu, Liangming Hu, Yi Zhang, Yi Zhang, Yizhuo Wang, Pengyun Ma, Wendong Wu, Qian Ge, Qian Ge, Yeping Bian, Yeping Bian, Xibin Han, Xibin Han

“…The paleoproductivity in the Southern Ocean plays a crucial role in controlling the atmospheric CO2 concentration. …”
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Investigating controls on sea ice algal production using E3SMv1.1-BGC by Nicole Jeffery, Mathew E. Maltrud, Elizabeth C. Hunke, Shanlin Wang, Jon Wolfe, Adrian K. Turner, Susannah M. Burrows, Xiaoying Shi, William H. Lipscomb, Wieslaw Maslowski, Kate V. Calvin

“…Modeled ice algal chlorophyll-a concentrations and column-integrated values are broadly consistent with observations, though chl-a profile fractions indicate that upper ice communities of the Southern Ocean are underestimated. Simulations of polar integrated sea ice PP support the lower bound in published estimates for both polar regions with mean Arctic values of 7.5 and 15.5 TgC/a in the Southern Ocean. …”
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Impact of anthropogenic Pb and ocean circulation on the recent distribution of Pb isotopes in the Indian Ocean by Gamo, Toshitaka, Obata, Hajime, Norisuye, Kazuhiro, Echegoyen, Yolanda, Lee, Jong-Mi, Boyle, Edward A

“…This study presents the Pb and Pb isotopic composition (²⁰⁶Pb/²⁰⁷Pb, ²⁰⁸Pb/²⁰⁷Pb) of 11 deep stations from the Indian Ocean Japanese GEOTRACES cruise (KH-09-5), from the Bay of Bengal and Arabian Sea to the Southern Ocean (62°S). The Pb isotope ratios of the Indian Ocean range 1.140–1.190 for ²⁰⁶Pb/²⁰⁷Pb and 2.417–2.468 for ²⁰⁸Pb/²⁰⁷Pb, with lower ratios appearing in the shallow waters of the northern Indian Ocean and higher ratios appearing in the deep layers of the Southern Ocean. …”
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Late Cenozoic sea-surface-temperature evolution of the South Atlantic Ocean by F. S. Hoem, A. López-Quirós, A. López-Quirós, S. van de Lagemaat, J. Etourneau, J. Etourneau, M.-A. Sicre, C. Escutia, H. Brinkhuis, H. Brinkhuis, F. Peterse, F. Sangiorgi, P. K. Bijl

“…<p>At present, a strong latitudinal sea-surface-temperature (SST) gradient of <span class="inline-formula">∼</span> 16 <span class="inline-formula">^∘</span>C exists across the Southern Ocean, maintained by the Antarctic Circumpolar Current (ACC) and a set of complex frontal systems. …”
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Life strategy of Antarctic silverfish promote large carbon export in Terra Nova Bay, Ross Sea by Clara Manno, Erica Carlig, Pier Paolo Falco, Pasquale Castagno, Giorgio Budillon

“…Abstract Antarctic silverfish Pleuragramma antarcticum is the most abundant pelagic fish in the High Antarctic shelf waters of the Southern Ocean, where it plays a pivotal role in the trophic web as the major link between lower and higher trophic levels. …”
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Unsupervised Learning Reveals Geography of Global Ocean Dynamical Regions by Sonnewald, Maike, Wunsch, Carl, Heimbach, Patrick

“…Cluster 5 occurs primarily in the Southern Ocean. Residual “dominantly nonlinear” regions highlight where the BV approach is inadequate, found in areas of rough topography in the Southern Ocean and along western boundaries.…”
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Stochastic subgrid-scale ocean mixing: Impacts on low-frequency variability by Juricke, S, Palmer, TN, Zanna, L

“…Interannual variability of the Southern Ocean eddy and Eulerian streamfunctions is increased by an order of magnitude and by 20%, respectively. …”

Silicon isotopes in Antarctic sponges: an interlaboratory comparison by Hendry, K, Leng, M, Robinson, L, Sloane, H, Blusztjan, J, Rickaby, R, Georg, R, Halliday, A

“…Cycling of deepwater silicon (Si) within the Southern Ocean, and its transport into other ocean basins, may be an important player in the uptake of atmospheric carbon, and global climate. …”

Subduction of water masses in an eddying ocean by Marshall, D

“…Solutions from an idealized two-dimensional ocean model are presented to illustrate the eddy contribution to subduction rates in the Southern Ocean and in an open-ocean convective chimney. …”