NDLI: Near-surface eddy dynamics in the Southern Ocean

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The occurrence of coreless winters in central Spitsbergen and their synoptic conditions

An inter-comparison of six latent and sensible heat flux products over the Southern Ocean

Coastal erosion dynamics on the permafrost-dominated Bykovsky Peninsula, north Siberia, 1951–2006

High-Arctic gamasid mites (Acari, Mesostigmata): community composition on Spitsbergen, Svalbard

UV-B absorbing pigments in spores: biochemical responses to shade in a high-latitude birch forest and implications for sporopollenin-based proxies of past environmental change

Dolerites of Svalbard, north-west Barents Sea Shelf: age, tectonic setting and significance for geotectonic interpretation of the High-Arctic Large Igneous Province

Community vulnerability to climate change in the context of other exposure-sensitivities in Kugluktuk, Nunavut

Thousand years of winter surface air temperature variations in Svalbard and northern Norway reconstructed from ice-core data

Response of Eyjafjallajökull, Torfajökull and Tindfjallajökull ice caps in Iceland to regional warming, deduced by remote sensing

Phosphate solubilizing ability of two Arctic Aspergillus niger strains

Oil spill emergency preparedness in the Russian Arctic: a study of the Murmansk region

The oldest plesiosaur (Reptilia, Sauropterygia) from Antarctica

Killer whale (Orcinus orca) photo-identification in the eastern Canadian Arctic

Colonization and demographic structure of Deschampsia antarctica and Colobanthus quitensis along an altitudinal gradient on Livingston Island, South Shetland Islands, Antarctica

Antarctic bacterial isolates that produce cold-active extracellular proteases at low temperature but are active and stable at high temperature

Variability of nutrient and thermal structure in surface waters between New Zealand and Antarctica, October 2004–January 2005

At-sea observations of the spring migration and pair bonding of ivory gulls (Pagophila eburnea) around Svalbard and East Greenland

Spatial modelling of wetness for the Antarctic Dry Valleys

The intraseasonal variability of winter semester surface air temperature in Antarctica

Spatio-temporal variability of snowmelt across Svalbard during the period 2000–08 derived from QuikSCAT/SeaWinds scatterometry

Spring phytoplankton onset after the ice break-up and sea-ice signature (Adélie Land, East Antarctica)

Diversity and physiology of marine lignicolous fungi in Arctic waters: a preliminary account

Greenland sharks (Somniosus microcephalus) scavenge offal from minke (Balaenoptera acutorostrata) whaling operations in Svalbard (Norway)

Oslo Science Conference, 8–12 June 2010: selected IPY papers

Some like it cold: microbial transformations of mercury in polar regions

Near-surface eddy dynamics in the Southern Ocean

Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert

Global southern limit of flowering plants and moss peat accumulation

Princess Elisabeth Antarctica: an International Polar Year outreach and media success story

Qanuqtuurniq—finding the balance: an IPY television series using community engagement

The fostering of cross-disciplinary science as a result of the IPY: “connectivity” created by the Canada Three Oceans project

Warm Arctic—cold continents: climate impacts of the newly open Arctic Sea

Making science animations: new possibilities for making science accessible to the public

Validating satellite derived and modelled sea-ice drift in the Laptev Sea with in situ measurements from the winter of 2007/2008

Impact of Laptev Sea flaw polynyas on the atmospheric boundary layer and ice production using idealized mesoscale simulations

Near-bottom water warming in the Laptev Sea in response to atmospheric and sea-ice conditions in 2007

Spatio-temporal variability of polynya dynamics and ice production in the Laptev Sea between the winters of 1979/80 and 2007/08

The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic

Evaluation of simulated sea-ice concentrations from sea-ice/ocean models using satellite data and polynya classification methods

Atmospheric controlled freshwater release at the Laptev Sea continental margin

Review of A woman in the polar night, by Christiane Ritter, translated by Jane Degras and with an introduction by Lawrence Millman (2010).

Review of Return to Antarctica: the amazing adventure of Sir Charles Wright on Robert Scott's journey to the South Pole, by Adrian Raeside (2009).

Review of Biology of polar benthic algae, edited by Christian Wiencke (2011)

Review of Greetings from Spitsbergen: tourists at the eternal ice, 1827-1914, by John T. Reilly (2009).

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Review of Antarctic climate change and the environment, edited by John Turner, Robert Bindschadler, Pete Convey, Guido di Prisco, Eberhard Fahrbach, Julian Gutt, Dominic Hodgson, Paul Mayewski & Colin Summerhayes (2009).

Review of Paleoclimates. Understanding climate change past and present, by Thomas M. Cronin (2010).

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Review of The great ocean of truth, by Peter Wadhams (2009).

Review of Tourism and change in polar regions: climate, environment and experience, by C. Michael Hall & Jarkko Saarinen (2010), and Cruise tourism in polar regions: promoting environmental and social sustainability?, by Michael Lück, Patrick T. Maher & Emma J. Stewart (2010).

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Near-surface eddy dynamics in the Southern Ocean

Content Provider	Taylor & Francis Online
Author	Trani, Marilisa Falco, Pierpaolo Zambianchi, Enrico
Abstract	The Antarctic Circumpolar Current (ACC) is a crucial component of the global ocean conveyor belt, acting as a zonal link among the major ocean basins but, to some extent, limiting meridional exchange and tending to isolate the ocean south of it from momentum and heat income. In this work we investigate one of the most important mechanisms contributing to the poleward transfer of properties in the Southern Ocean, that is the eddy component of the dynamics. For this particular purpose, observations obtained from near-surface drifters have been used: they represent a very useful data set to analyse the eddy field because of their ability to catch a large number of scales of motion while providing a quasi-synoptic coverage of the investigated area. Estimates of the eddy heat and momentum fluxes are carried out using data taken from the Global Drifter Program databank; they refer to Surface Velocity Program drifter trajectories collected in the area south of 35°S between 1995 and 2006. Eddy kinetic energies, variance ellipses, momentum and heat fluxes have been calculated using the pseudo-Eulerian method, showing patterns in good agreement with those present in the literature based on observational and model data, although there are some quantitative differences. The eddy fluxes have been separated into their rotational and divergent portions, the latter being responsible for the meridional transports. The associated zonal and depth-exponentially integrated meridional heat transport exhibits values spanning over a range between -0.4 PW and –1.1 PW in the ACC region, consistent with previous estimates.
File Format	PDF HTM / HTML
ISSN	17518369
DOI	10.3402/polar.v30i0.11203
Journal	Polar Research
Volume Number	30
Issue Number	1
Language	English
Publisher	Routledge
Publisher Date	2011-12-30
Access Restriction	Open
Subject Keyword	Antarctic Circumpolar Current Eddy fluxes Global Drifter Program data Lagrangian oceanography Helmholtz decomposition
Content Type	Text
Resource Type	Article
Subject	1900/1901 Environmental Chemistry Environmental Science Oceanography

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