NDLI: Turbulent dissipation and mixing in Prydz Bay

Content Provider	Springer Nature Link
Author	Yang, Qingxuan Tian, Jiwei Zhao, Wei Xie, Lingling
Copyright Year	2012
Abstract	In this paper, we present measurements of velocity, temperature, salinity, and turbulence collected in Prydz Bay, Antarctica, during February, 2005. The dissipation rates of turbulent kinetic energy (ɛ) and diapycnal diffusivities (K z ) were estimated along a section in front of the Amery Ice Shelf. The dissipation rates and diapycnal diffusivities were spatially non-uniform, with higher values found in the western half of the section where ɛ reached 10−7 W/kg and K z reached 10−2 m2/s, about two and three orders of magnitude higher than those in the open ocean, respectively. In the western half of the section both the dissipation rates and diffusivities showed a high-low-high vertical structure. This vertical structure may have been determined by internal waves in the upper layer, where the ice shelf draft acts as a possible energy source, and by bottom-generated internal waves in the lower layer, where both tides and geostrophic currents are possible energy sources. The intense diapycnal mixing revealed in our observations could contribute to the production of Antarctic Bottom Water in Prydz Bay.
Starting Page	445
Ending Page	453
Page Count	9
File Format	PDF
ISSN	02544059
Journal	Chinese Journal of Oceanology and Limnology
Volume Number	31
Issue Number	2
e-ISSN	19935005
Language	English
Publisher	SP Science Press
Publisher Date	2013-03-07
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	turbulent mixing Prydz Bay Antarctic Bottom Water (AABW) microstructure observation Oceanography
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Oceanography

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Age groups of antarctic krill,Euphausia superba dana, in the Prydz Bay region

Possible source of the antarctic bottom water in the Prydz Bay Region

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Possible source of the antarctic bottom water in the Prydz Bay Region

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Supercooled water in austral summer in Prydz Bay, Antarctica

Topographic features around Zhongshan Station, southeast of Prydz Bay

Possible source of the antarctic bottom water in the Prydz Bay Region

Statolith microstructure of seven species of Antarctic squid captured in Prydz Bay, Antarctica

Meridional distribution of 226Ra in the west pacific and the southern ocean surface waters

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