Features of Circumpolar Deep Water, Antarctic Bottom Water and their movement near the Prydz Bay

PU Shu-zhen; HU Xiao-min; DONG Zhao-qian; YU Fei; CHEN Xing-rong

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PU Shu-zhen, HU Xiao-min, DONG Zhao-qian, YU Fei, CHEN Xing-rong. Features of Circumpolar Deep Water, Antarctic Bottom Water and their movement near the Prydz Bay[J]. Haiyang Xuebao, 2002, 24(3): 1-8.

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PU Shu-zhen, HU Xiao-min, DONG Zhao-qian, YU Fei, CHEN Xing-rong. Features of Circumpolar Deep Water, Antarctic Bottom Water and their movement near the Prydz Bay[J]. Haiyang Xuebao, 2002, 24(3): 1-8.

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Features of Circumpolar Deep Water, Antarctic Bottom Water and their movement near the Prydz Bay

1.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
2.
Polar Research Institute of China, Shanghai 200129, China

Received Date: 2000-08-10
Rev Recd Date: 2001-01-05

Abstract

Abstract

Historical CTD data of the full-depth measurements which were conducted during the 15th Antarctic Survey of China in the period from November 1998 to February 1999 are used to analyze and discuss the marine physical characteristics of the Circumpolar Deep Water (CDW) and the Antarctic Bottom Water (AABW),and their spacial distribution in the Southern Ocean to the north of the Prydz Bay.The results are compared with the discovery by other oceano graphers in the historical liter ature.It is pointed out that CDW extends southward in the depths from 100×10⁴ Pa to 2 000×10⁴ Pa in the studied area.Both the high temperature core (t>1.2℃) and the high salinity core (S>34.7) of CDW become the thickest and extend the furthest southward in the 75°E section among all the 3 sections.AABW extends northward from the continental shelf in the depthsbelow 2 500×10⁴ Pa.The high-density water (σ_θ>27.875) becomes the thickest and extends the furthest northward in the 70°E section.In addition,the CTD data from the measurements are used to provide the scientific evidence for the longitudinal circulation pattern in CDW and AABW,which is coincident with the features of deacan cell,sub-polar cell and deep cell in the Southern Ocean.
- Circumpolar Deep Water,
- Antarctic Bottom Water,
- Prydz Bay

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References(10)

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