Antarctic Bottom Water Sensitivity to Spatio‐Temporal Variations in Antarctic Meltwater Fluxes
Geophysical Research Letters, 2023 Ice sheet melting into the Southern Ocean can change the formation and properties of the Antarctic Bottom Water (AABW). Ocean models often mimic ice sheet melting by adding freshwater fluxes in the Southern Ocean under diverse spatial distributions.
Wilton Aguiar +6 more
doaj +3 more sources
How Does Antarctic Bottom Water Cross the Southern Ocean?
Geophysical Research Letters, 2022 Antarctic Bottom Water (AABW), which fills the global ocean abyss, is derived from dense water that forms in several distinct Antarctic shelf regions. Previous modeling studies have reached conflicting conclusions regarding export pathways of AABW across
A. Solodoch +7 more
semanticscholar +4 more sources
Influence of Ross Sea Bottom Water changes on the warming and freshening of the Antarctic Bottom Water in the Australian-Antarctic Basin [PDF]
Ocean Science, 2012 Changes to the properties of Antarctic Bottom Water in the Australian-Antarctic Basin (AA-AABW) between the 1990s and 2000s are documented using data from the WOCE Hydrographic Program (WHP) and repeated hydrographic surveys.
K. Shimada +3 more
doaj +5 more sources
Can the Topography of Tibetan Plateau Affect the Antarctic Bottom Water?
Geophysical Research Letters, 2021 The Tibetan Plateau (TP) plays a vital role in shaping global climate. So far, however, few studies have focused on the impact of the TP on Southern Ocean (SO) circulation.
Qin Wen +4 more
doaj +2 more sources
Wind– and Sea‐Ice–Driven Interannual Variability of Antarctic Bottom Water Formation
Journal of Geophysical Research: Oceans, 2023 Antarctic Bottom Water (AABW) is a major component of the global overturning circulation, originating around the Antarctic continental margin. In recent decades AABW has both warmed and freshened, but there is also evidence of large interannual ...
C. Schmidt, A. Morrison, M. England
semanticscholar +3 more sources
Boundary Upwelling of Antarctic Bottom Water by Topographic Turbulence
AGU Advances, 2023 The lower cell of the meridional overturning circulation (MOC) is sourced by dense Antarctic Bottom Waters (AABWs), which form and sink around Antarctica and subsequently fill the abyssal ocean.
L. E. Baker +2 more
doaj +4 more sources
Euphotic Zone Residence Time of Antarctic Bottom Water
Geophysical Research LettersAntarctic Bottom Water (AABW) transports surface nutrients deep into the ocean, sequestering them for centuries. Enhancing its biological carbon fixation could augment carbon sinks and reduce atmospheric CO2.
Yinghuan Xie +6 more
doaj +2 more sources
Reshaping the Antarctic Circumpolar Current via Antarctic Bottom Water Export
Journal of Physical Oceanography, 2017 AbstractZonal momentum input into the Antarctic Circumpolar Current (ACC) by westerly winds is ultimately removed via topographic form stress induced by large bathymetric features that obstruct the path of the current. These bathymetric features also support the export of Antarctic Bottom Water (AABW) across the ACC via deep, geostrophically balanced ...
A. Stewart, A. Hogg
semanticscholar +3 more sources
Impact of West Antarctic ice shelf melting on Southern Ocean hydrography [PDF]
The Cryosphere, 2020 Previous studies show accelerations of West Antarctic glaciers, implying that basal melt rates of these glaciers were previously small and increased in the middle of the 20th century. This enhanced melting is a likely source of the observed Ross Sea (RS)
Y. Nakayama +3 more
doaj +1 more source
Slowdown of Antarctic Bottom Water export driven by climatic wind and sea-ice changes
Nature Climate Change, 2023 Dense-water formation around Antarctica could be reduced as climate change alters sea-ice formation and circulation patterns. This study shows there has been an over 40% reduction in dense-water formation in the Weddell Sea since 1992, which could affect
Shenjie Zhou +7 more
semanticscholar +1 more source