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
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 +1 more source
Geophysical Research Letters, 2023 The Antarctic Slope Current is guided by the topographic gradient of the Antarctic continental slope and creates a dynamical barrier between the continental shelf and the open ocean.
Wilma G. C. Huneke +2 more
doaj +1 more source
Ventilation of the abyss in the Atlantic sector of the Southern Ocean
Scientific Reports, 2021 The Atlantic sector of the Southern Ocean is the world’s main production site of Antarctic Bottom Water, a water-mass that is ventilated at the ocean surface before sinking and entraining older water-masses—ultimately replenishing the abyssal global ...
Camille Hayatte Akhoudas +10 more
doaj +1 more source
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +3 more sources
Southern Ocean polynyas and dense water formation in a high-resolution, coupled Earth system model [PDF]
The Cryosphere, 2023 Antarctic coastal polynyas produce dense shelf water, a primary source of Antarctic Bottom Water that contributes to the global overturning circulation. This paper investigates Antarctic dense water formation in the high-resolution version of the Energy ...
H. Jeong +14 more
doaj +1 more source
Shoaling of abyssal ventilation in the Eastern Indian Sector of the Southern Ocean
Communications Earth & Environment, 2022 Under rapid and persistent freshening in source waters, a decline in the supply of Antarctic Bottom Water to the Australian-Antarctic Basin is compensated by an increase in ventilation of the layer immediately above, suggests an analysis of in situ ...
Keishi Shimada +8 more
doaj +1 more source
Frontiers in Marine Science, 2023 Antarctic continental margin sediments are eroded from the shelf and transported to the slope/rise in association with changing ice sheet configuration.
Sunghan Kim +9 more
doaj +1 more source
On the export of Antarctic Bottom Water from the Weddell Sea [PDF]
Deep Sea Research Part II: Topical Studies in Oceanography, 2002 Abstract A survey of the current field over the South Scotia Ridge, obtained with a lowered Acoustic Doppler Current Profiler (LADCP), is presented. There is a pattern of northward (southward) flow on the western (eastern) side of each of four deep passages in the ridge, which is supported by tracer measurements.
Naveira Garabato, A.C. +4 more
openaire +3 more sources
The spreading of Antarctic bottom water in the tropical Atlantic [PDF]
Deep Sea Research Part I: Oceanographic Research Papers, 1998 Hydrographic and tracer [chlorofluorocarbon (CFC), component F11] data in the tropical Atlantic off Brazil taken in spring 1994 are used to describe the development of the water mass characteristics of Antarctic Bottom Water (AABW) between 10 degrees S and 11 degrees N.
Monika Rhein +2 more
openaire +3 more sources