scholarly journals On the Modified Circumpolar Deep Water Upwelling Over the Four Ladies Bank in Prydz Bay, East Antarctica

2018 ◽  
Vol 123 (11) ◽  
pp. 7819-7838 ◽  
Author(s):  
Chengyan Liu ◽  
Zhaomin Wang ◽  
Chen Cheng ◽  
Yang Wu ◽  
Ruibin Xia ◽  
...  
Keyword(s):  
Deep Water ◽  
East Antarctica ◽  
Prydz Bay ◽  
Circumpolar Deep Water

scholarly journals Circulation of modified Circumpolar Deep Water and basal melt beneath the Amery Ice Shelf, East Antarctica

2015 ◽  
Vol 120 (4) ◽  
pp. 3098-3112 ◽  
Author(s):  
Laura Herraiz-Borreguero ◽  
Richard Coleman ◽  
Ian Allison ◽  
Stephen R. Rintoul ◽  
Mike Craven ◽  
...  
Keyword(s):  
Deep Water ◽  
East Antarctica ◽  
Ice Shelf ◽  
Circumpolar Deep Water ◽  
Amery Ice Shelf

Young squid in the plankton of Prydz Bay, Antarctica

1994 ◽  
Vol 6 (2) ◽  
pp. 171-173 ◽  
Author(s):  
J.A. Filippova ◽  
E.A. Pakhomov
Keyword(s):  
Vertical Distribution ◽  
Deep Water ◽  
Abundant Species ◽  
Prydz Bay ◽  
Midwater Trawl ◽  
Circumpolar Deep Water ◽  
Vertical Range ◽  
The Antarctic

A collection of juvenile squid were caught with the Isaacs-Kidd midwater trawl (IKMT) and the Juday plankton net at 86 stations in Prydz Bay (60°–67°30′S, 60°–80°E) to a depth of 500 m but mostly at 0–200 m. Five species were identified, Psychroteuthis glacialis, Alluroteuthis antarcticus, Brachioteuthis sp. and the cranchiids Galiteuthis glacialis and Mesonychoteuthis hamiltoni. P. glacialis and the cranchiids were the most abundant species. Young P. glacialis (5–17 mm ML) were taken at depths of 5–200 m but concentrated in the upper 100 m whilst the cranchiids (5–35 mm ML) occurred over a wider vertical range (50–500 m). The regular occurrence of paralarvae and juveniles suggests that all the species reproduce in the Antarctic. Juvenile Vertical distribution appears to differ between species with P. glacialis concentrated relatively near the surface, the cranchiids in the upper part of the Circumpolar Deep Water and A. antarcticus widely distributed to a depth of 900 m.

Modified Circumpolar Deep Water intrusions in Vincennes Bay, East Antarctica.

2020 ◽  
Author(s):  
Natalia Ribeiro ◽  
Laura Herraiz-Borreguero ◽  
Stephen R. Rintoul ◽  
Clive R. McMahon ◽  
Mark Hindell ◽  
...  
Keyword(s):  
Deep Water ◽  
East Antarctica ◽  
Circumpolar Deep Water

scholarly journals Water masses distribution offshore the Sabrina Coast (East Antarctica)

2022 ◽  
Vol 14 (1) ◽  
pp. 65-78
Author(s):  
Manuel Bensi ◽  
Vedrana Kovačević ◽  
Federica Donda ◽  
Philip Edward O'Brien ◽  
Linda Armbrecht ◽  
...  
Keyword(s):  
Deep Water ◽  
Potential Temperature ◽  
Austral Summer ◽  
Water Masses ◽  
East Antarctica ◽  
Ocean Dynamics ◽  
Mixing Processes ◽  
Circumpolar Deep Water ◽  
Oceanographic Data ◽  
The Antarctic

Abstract. Current glacier melt rates in West Antarctica substantially exceed those around the East Antarctic margin. The exception is Wilkes Land, where for example Totten Glacier underwent significant retreat between 2000 and 2012, underlining its sensitivity to climate change. This process is strongly influenced by ocean dynamics, which in turn changes in accordance with the evolution of the ice caps. Here, we present new oceanographic data (temperature, salinity, and dissolved oxygen) collected during austral summer 2017 offshore the Sabrina Coast (East Antarctica) from the continental shelf break to ca 3000 m depth. This area is characterized by very few oceanographic in situ observations. The main water masses of the study area, identified by analysing thermohaline properties, are the Antarctic Surface Water with potential temperature θ>-1.5 ∘C and salinity S<34.2 (σθ<27.55 kg m−3), the Winter Water with -1.92<θ<-1.75 ∘C and 34.0<S<34.5 (potential density, 27.55<σθ<27.7 kg m−3), the modified Circumpolar Deep Water with θ>0 ∘C and S>34.5 (σθ>27.7 kg m−3), and Antarctic Bottom Water with -0.50<θ<0 ∘C and 34.63<S<34.67 (27.83<σθ<27.85; neutral density γn>28.30 kg m−3). The latter is a mixture of dense waters from the Ross Sea and Adélie Land continental shelves. Such waters are influenced by the mixing processes they undergo as they move westward along the Antarctic margin, also interacting with the warmer Circumpolar Deep Water. The spatial distribution of water masses offshore the Sabrina Coast also appears to be strongly linked with the complex morpho-bathymetry of the slope and rise area, supporting the hypothesis that downslope processes contribute to shaping the architecture of the distal portion of the continental margin. Oceanographic data presented here can be downloaded from https://doi.org/10.25919/yyex-t381 (CSIRO; Van Graas, 2021).

scholarly journals Water masses distribution offshore the Sabrina Coast (East Antarctica)

2021 ◽  
Author(s):  
Manuel Bensi ◽  
Vedrana Kovačević ◽  
Federica Donda ◽  
Philip E. O'Brien ◽  
Linda Armbrecht ◽  
...  
Keyword(s):  
Deep Water ◽  
Ross Sea ◽  
Austral Summer ◽  
Distal Portion ◽  
Water Masses ◽  
East Antarctica ◽  
Ocean Dynamics ◽  
Circumpolar Deep Water ◽  
Ice Caps ◽  
The Antarctic

Abstract. Current glacier melt rates in West Antarctica substantially exceed those around the East Antarctic margin. The exception is Wilkes Land where, e.g., Totten Glacier, underwent significant retreat between 2000 and 2012, underlining its sensitivity to climate change. This process is strongly influenced by ocean dynamics, which in turn changes in accordance with the evolution of the ice caps. Here, we present oceanographic data (temperature, salinity, density, dissolved oxygen) collected for the first time offshore the Sabrina Coast (East Antarctica), from the continental shelf break to ca 3000 m depth during austral summer 2017. The main water masses are identified by analysing thermohaline properties: the Antarctic Surface Water with θ > −1. 5 °C and S < 34.2 (σθ < 27.55 kg m−3), the Winter Water with −1.92 < θ < −1.75 °C and 34.0 < S < 34.5 (27.55 < σθ < 27.7 kg m−3), the modified Circumpolar Deep Water with θ > 0 °C and S > 34.5 (σθ > 27.7 kg m−3), and Antarctic Bottom Water with −0.50 < θ < 0 °C and 34.63 < S < 34.67 (27.83 < σθ < 27.85). The latter in this region is a mixture of dense waters originating from the Ross Sea and Adélie Land continental shelves, and is affected by the mixing process they undergo as they move westward along the Antarctic margin and interact with the locally formed dense waters, and with the warmer and saltier Circumpolar Deep Water. The spatial distribution of water masses offshore the Sabrina Coast also appears to be strongly linked with the complex morpho-bathymetry of the slope and rise area, supporting the hypothesis that downslope processes contribute to shaping the architecture of the distal portion of the continental margin.

Monazite petrochronology of polymetamorphic granulite‐facies rocks of the Larsemann Hills, Prydz Bay, East Antarctica

2021 ◽  
Author(s):  
Steven K. Spreitzer ◽  
Jesse B. Walters ◽  
Alicia Cruz‐Uribe ◽  
Michael L. Williams ◽  
Martin G. Yates ◽  
...  
Keyword(s):  
Granulite Facies ◽  
East Antarctica ◽  
Prydz Bay ◽  
Larsemann Hills

Spatial distribution and source apportionment of PAHs in marine surface sediments of Prydz Bay, East Antarctica

2016 ◽  
Vol 219 ◽  
pp. 528-536 ◽  
Author(s):  
Rui Xue ◽  
Ling Chen ◽  
Zhibo Lu ◽  
Juan Wang ◽  
Haizhen Yang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Source Apportionment ◽  
Surface Sediments ◽  
East Antarctica ◽  
Prydz Bay ◽  
Marine Surface

On the Tidal Currents Observed by Moorings in Prydz Bay, East Antarctica

2020 ◽  
Author(s):  
Chengyan Liu ◽  
Zhaomin Wang ◽  
Robin Robertson ◽  
Chen Cheng ◽  
Xi Liang ◽  
...  
Keyword(s):  
Tidal Currents ◽  
East Antarctica ◽  
Prydz Bay
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