Variability in the mechanisms controlling Southern Ocean phytoplankton bloom phenology in an ocean model and satellite observations
Sign Up to like & getrecommendations! Published in 2017 at "Global Biogeochemical Cycles"
DOI: 10.1002/2016gb005615
Abstract: A coupled global numerical simulation (conducted with the Community Earth System Model) is used in conjunction with satellite remote sensing observations to examine the role of top-down (grazing pressure) and bottom-up (light, nutrients) controls on… read more here.
Keywords: phytoplankton bloom; bloom; model; southern ocean ... See more keywords
Do dust emissions from sparsely vegetated regions dominate atmospheric iron supply to the Southern Ocean
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2016jd025939
Abstract: Atmospheric deposition of dust aerosols is a significant source of exogenous iron (Fe) in marine ecosystems and is critical in setting primary marine productivity during summer. This dust-borne input of Fe is particularly important to… read more here.
Keywords: iron; southern ocean; dust emissions; sparsely vegetated ... See more keywords
Contributions of Greenhouse Gas Forcing and the Southern Annular Mode to Historical Southern Ocean Surface Temperature Trends
Sign Up to like & getrecommendations! Published in 2018 at "Geophysical Research Letters"
DOI: 10.1002/2017gl074964
Abstract: We examine the 1979-2014 Southern Ocean (SO) sea surface temperature (SST) trends simulated in an ensemble of coupled general circulation models and evaluate possible causes of the models’ inability to reproduce the observed 1979-2014 SO… read more here.
Keywords: southern annular; greenhouse gas; southern ocean; surface temperature ... See more keywords
Lagrangian Timescales of Southern Ocean Upwelling in a Hierarchy of Model Resolutions
Sign Up to like & getrecommendations! Published in 2018 at "Geophysical Research Letters"
DOI: 10.1002/2017gl076045
Abstract: In this paper we study upwelling pathways and timescales of Circumpolar Deep Water (CDW) in a hierarchy of models using a Lagrangian particle tracking method. Lagrangian timescales of CDW upwelling decrease from 87 years to… read more here.
Keywords: resolution; lagrangian timescales; climate; model ... See more keywords
Revisiting Ocean Color algorithms for chlorophyll a and particulate organic carbon in the Southern Ocean using biogeochemical floats
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jc012844
Abstract: The Southern Ocean (SO) ecosystem plays a key role in the carbon cycle by sinking a major part (43%) of the ocean uptake of anthropogenic CO2, and being an important source of nutrients for primary… read more here.
Keywords: organic carbon; carbon; biogeochemical floats; southern ocean ... See more keywords
Evaluating Southern Ocean Carbon Eddy‐Pump From Biogeochemical‐Argo Floats
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Geophysical Research"
DOI: 10.1002/2017jc012861
Abstract: The vertical transport of surface water and carbon into ocean's interior, known as subduction, is one of the main mechanisms through which the ocean influences Earth's climate. New instrumental approaches have shown the occurrence of… read more here.
Keywords: subduction events; carbon; eddy pump; subduction ... See more keywords
Dense shelf water spreading from Antarctic coastal polynyas to the deep Southern Ocean: A regional circumpolar model study
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jc012911
Abstract: The spreading of Dense Shelf Water (DSW) from Antarctic coastal margins to lower latitudes plays a vital role in the ocean thermohaline circulation and the global climate system. Through enhanced localized sea ice production in… read more here.
Keywords: water; model; southern ocean; shelf ... See more keywords
Oxygen in the Southern Ocean From Argo Floats: Determination of Processes Driving Air‐Sea Fluxes
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jc012923
Abstract: The Southern Ocean is of outsized significance to the global oxygen and carbon cycles with relatively poor measurement coverage due to harsh winters and seasonal ice cover. In this study, we use recent advances in… read more here.
Keywords: oxygen; air sea; sea; southern ocean ... See more keywords
Synchronized autonomous sampling reveals coupled pulses of biomass and export of morphologically different diatoms in the Southern Ocean
Sign Up to like & getrecommendations! Published in 2020 at "Limnology and Oceanography"
DOI: 10.1002/lno.11638
Abstract: The Southern Ocean hosts a large diversity of diatoms that play a major role in carbon fluxes. How the seasonal dynamics in the abundance of specific taxa in surface waters are linked to their contribution… read more here.
Keywords: export; autonomous sampling; diatom; southern ocean ... See more keywords
Examination of gene repertoires and physiological responses to iron and light limitation in Southern Ocean diatoms
Sign Up to like & getrecommendations! Published in 2017 at "Polar Biology"
DOI: 10.1007/s00300-017-2228-7
Abstract: Diatoms play a fundamental role at the base of the polar marine food web. In the Southern Ocean, low iron concentrations and light levels control diatom abundance and distribution. Diatoms must therefore employ strategies that… read more here.
Keywords: gene repertoires; ocean diatoms; iron light; southern ocean ... See more keywords
Ecophysiology and ecological limits of symbiotrophic vesicomyid bivalves (Pliocardiinae) in the Southern Ocean
Sign Up to like & getrecommendations! Published in 2020 at "Polar Biology"
DOI: 10.1007/s00300-020-02717-z
Abstract: Geothermal energy provides an important resource in Antarctic marine ecosystems, exemplified by the recent discovery of large-sized chemosymbiotic vesicomyid bivalves (subfamily Pliocardiinae) in the Southern Ocean. These clams, which we identified as Archivesica s.l. puertodeseadoi,… read more here.
Keywords: range; pliocardiinae southern; ecological limits; southern ocean ... See more keywords