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Mechanisms Driving the Extensive Antarctic Bottom Water in the Glacial Atlantic

Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Paleo‐proxy data indicate that during the Last Glacial Maximum (LGM), the volume of Antarctic Bottom Water (AABW) in the Atlantic was nearly four times greater than it is today. We employed an ocean‐only model to simulate the galcial ocean and sea‐ice conditions. Our simulations reveal two key mechanisms driving its greater volume.
Yugeng Chen, Pengyang Song, Xianyao Chen, Gerrit Lohmann   +3 more
wiley   +1 more source

Intense autumnal coastal biogenic particle settling fluxes align with phytoplankton phenology changes off the western Antarctic Peninsula. [PDF]

Sci Rep
Isla E, Menschel E, González HH.
europepmc   +1 more source

A horizontally transferred bacterial gene aids the freezing tolerance of Antarctic bdelloid rotifers. [PDF]

Proc Natl Acad Sci U S A
Raymond JA.
europepmc   +1 more source

Sea ice pattern effect on Earth's energy budget is characterized by hemispheric asymmetry. [PDF]

Sci Adv
Zhou C, Wang Q, Tan I, Zhang L, Zelinka MD, Wang M, Bloch-Johnson J.   +6 more
europepmc   +1 more source

Long-distance winter migrations of chinstrap penguins and elephant seals to a persistent bloom at the edge of the Ross Gyre. [PDF]

Sci Rep
Wilson C, Hinke JT, Mazloff M.
europepmc   +1 more source

Seasonal regimes of warm Circumpolar Deep Water intrusion toward Antarctic ice shelves. [PDF]

Commun Earth Environ
Lanham J, Mazloff M, Naveira Garabato AC, Siegert M, Mashayek A.   +4 more
europepmc   +1 more source

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BIOGEOCHEMISTRY OF ANTARCTIC SEA ICE

2002
Antarctic sea ice at its maximum extent in winter covers 40% of the Southern Ocean in a frozen layer, on average, 1 m thick. Sea ice is not solid, rather it is an ice crystal matrix permeated by a labyrinth of brine filled channels and pores in which life thrives.
Gerhard Dieckmann, David N. Thomas
openaire   +2 more sources

Whither Antarctic Sea Ice?

Science, 2003
The extent of sea ice around Antartica and the Arctic should be a sensitive indicator of climatic change at the poles. In his Perspective, Wolff highlights the report of Curran et al ., who have compared a potential chemical proxy for sea ice extent from an ice core with satellite records for sea ice extent in the nearby ocean.
openaire   +3 more sources

Productivity of Microalgae in Antarctic Sea Ice

Science, 1965
Midsummer productivity of Antarctic microalgae, commonly occurring in brown sea ice along the west coast of the Palmer Peninsula, averaged more than 900 milligrams of carbon per cubic meter per hour, with an assimilation number of about 2.6. The rate of photosynthesis increased with light intensity to a maximum of about 18,000 lux, above which some ...
Paul R. Burkholder, Enrique F. Mandelli
openaire   +3 more sources