Results 1 to 10 of about 217,171 (193)

No detectable Weddell Sea Antarctic Bottom Water export during the Last and Penultimate Glacial Maximum [PDF]

Nature Communications, 2020
The Southern Ocean plays a key role in glacial-interglacial transitions and today, Weddell Sea derived Antarctic Bottom Water is one of the most important deep water masses.
Huang Huang, Marcus Gutjahr, Anton Eisenhauer, Gerhard Kuhn   +3 more
doaj   +3 more sources

Age distribution of Antarctic Bottom Water off Cape Darnley, East Antarctica, estimated using chlorofluorocarbon and sulfur hexafluoride [PDF]

Scientific Reports, 2022
Chlorofluorocarbon (CFC) and sulfur hexafluoride (SF6) were used to investigate the timescale of Antarctic Bottom Water (AABW) that spreads off Cape Darnley (CD) in East Antarctica. The age of the AABW was estimated based on the observed SF6/CFC-12 ratio
Yoshihiko Ohashi, Michiyo Yamamoto-Kawai, Kazuya Kusahara, Ken’ichi Sasaki, Kay I. Ohshima   +4 more
doaj   +3 more sources

Circum-Antarctic bottom water formation mediated by tides and topographic waves [PDF]

Nature Communications
The downslope plumes of dense shelf water (DSW) are critical for the formation of Antarctic Bottom Water (AABW), and thus to the exchange of heat and carbon between surface and abyssal ocean.
Xianxian Han, Andrew L. Stewart, Dake Chen, Markus Janout, Xiaohui Liu, Zhaomin Wang, Arnold L. Gordon   +6 more
doaj   +3 more sources

The suppression of Antarctic bottom water formation by melting ice shelves in Prydz Bay [PDF]

Nature Communications, 2016
Antarctic bottom water (AABW) production is critical to the global ocean overturning circulation. Here, the authors show new observations of AABW formation from seal CTD data in Prydz Bay, East Antarctica that highlights its susceptibility to increased ...
G. D. Williams, L. Herraiz-Borreguero, F. Roquet, T. Tamura, K. I. Ohshima, Y. Fukamachi, A. D. Fraser, L. Gao, H. Chen, C. R. McMahon, R. Harcourt, M. Hindell   +11 more
doaj   +3 more sources

Tides regulate the flow and density of Antarctic Bottom Water from the western Ross Sea. [PDF]

Sci Rep, 2023
Antarctic Bottom Water (AABW) stores heat and gases over decades to centuries after contact with the atmosphere during formation on the Antarctic shelf and subsequent flow into the global deep ocean.
Bowen MM, Fernandez D, Gordon AL, Huber B, Castagno P, Falco P, Budillon G, Gunn KL, Forcen-Vazquez A.   +8 more
europepmc   +2 more sources

Dominant frazil ice production in the Cape Darnley polynya leading to Antarctic Bottom Water formation. [PDF]

Sci Adv, 2022
Antarctic Bottom Water (AABW) occupies the abyssal layer of the world ocean and contributes to the global overturning circulation. It originates from dense shelf water, which forms from brine rejection during sea ice production.
Ohshima KI, Fukamachi Y, Ito M, Nakata K, Simizu D, Ono K, Nomura D, Hashida G, Tamura T.   +8 more
europepmc   +2 more sources

Observing Antarctic Bottom Water in the Southern Ocean

Frontiers in Marine Science, 2023
Dense, cold waters formed on Antarctic continental shelves descend along the Antarctic continental margin, where they mix with other Southern Ocean waters to form Antarctic Bottom Water (AABW).
Alessandro Silvano, Sarah Purkey, Arnold L. Gordon, Pasquale Castagno, Andrew L. Stewart, Stephen R. Rintoul, Stephen R. Rintoul, Stephen R. Rintoul, Annie Foppert, Annie Foppert, Kathryn L. Gunn, Laura Herraiz-Borreguero, Laura Herraiz-Borreguero, Shigeru Aoki, Yoshihiro Nakayama, Alberto C. Naveira Garabato, Carl Spingys, Camille Hayatte Akhoudas, Camille Hayatte Akhoudas, Jean-Baptiste Sallée, Casimir de Lavergne, E. Povl Abrahamsen, Andrew J. S. Meijers, Michael P. Meredith, Shenjie Zhou, Takeshi Tamura, Takeshi Tamura, Kaihe Yamazaki, Kaihe Yamazaki, Kay I. Ohshima, Pierpaolo Falco, Giorgio Budillon, Tore Hattermann, Tore Hattermann, Tore Hattermann, Markus A. Janout, Pedro Llanillo, Melissa M. Bowen, Elin Darelius, Svein Østerhus, Keith W. Nicholls, Craig Stevens, Craig Stevens, Denise Fernandez, Laura Cimoli, Laura Cimoli, Stanley S. Jacobs, Adele K. Morrison, Andrew McC. Hogg, F. Alexander Haumann, F. Alexander Haumann, F. Alexander Haumann, Ali Mashayek, Zhaomin Wang, Rodrigo Kerr, Guy D. Williams, Won Sang Lee   +56 more
doaj   +2 more sources

Improving Antarctic Bottom Water precursors in NEMO for climate applications [PDF]

Geoscientific Model Development, 2023
The world's largest ice shelves are found in the Antarctic Weddell Sea and Ross Sea where complex interactions between the atmosphere, sea ice, ice shelves and ocean transform shelf waters into High Salinity Shelf Water (HSSW) and Ice Shelf Water (ISW ...
K. Hutchinson, J. Deshayes, C. Éthé, C. Rousset, C. de Lavergne, M. Vancoppenolle, N. C. Jourdain, P. Mathiot   +7 more
doaj   +2 more sources

Reversal of freshening trend of Antarctic Bottom Water in the Australian-Antarctic Basin during 2010s. [PDF]

Sci Rep, 2020
The Antarctic continental margin supplies the densest bottom water to the global abyss. From the late twentieth century, an acceleration in the long-term freshening of Antarctic Bottom Waters (AABW) has been detected in the Australian-Antarctic Basin ...
Aoki S, Yamazaki K, Hirano D, Katsumata K, Shimada K, Kitade Y, Sasaki H, Murase H.   +7 more
europepmc   +2 more sources

Antarctic Bottom Water Warming and Circulation Slowdown in the Argentine Basin From Analyses of Deep Argo and Historical Shipboard Temperature Data

Geophysical Research Letters, 2022
A decadal warming trend of 2.1 (±0.2) m°C yr−1 in Antarctic Bottom Water within the western Argentine Basin is found by comparing Deep Argo temperature profiles from 2021 to 2022 to nearby historical shipboard data from 1972 to 1998.
Gregory C. Johnson
doaj   +2 more sources