Characteristics of hydrographic structure and source of bottom water in the Prydz Bay and vicinity sea area

Yu Honghua; Su Jilan; Miao Yutian

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Yu Honghua, Su Jilan, Miao Yutian. Characteristics of hydrographic structure and source of bottom water in the Prydz Bay and vicinity sea area[J]. Haiyang Xuebao, 1998, 20(1): 11-20.

Citation:

Yu Honghua, Su Jilan, Miao Yutian. Characteristics of hydrographic structure and source of bottom water in the Prydz Bay and vicinity sea area[J]. Haiyang Xuebao, 1998, 20(1): 11-20.

Yu Honghua, Su Jilan, Miao Yutian. Characteristics of hydrographic structure and source of bottom water in the Prydz Bay and vicinity sea area[J]. Haiyang Xuebao, 1998, 20(1): 11-20.

Citation:

Yu Honghua, Su Jilan, Miao Yutian. Characteristics of hydrographic structure and source of bottom water in the Prydz Bay and vicinity sea area[J]. Haiyang Xuebao, 1998, 20(1): 11-20.

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Characteristics of hydrographic structure and source of bottom water in the Prydz Bay and vicinity sea area

Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012

Received Date: 1996-09-05
Rev Recd Date: 1997-03-25

Abstract

Abstract

Based on, the data of CTD in the Prydz Bay and the vicinity sea area by CHINARE-9, hydrographic structure and the source of Antarctic Bottom Water (AABW) is analysed in the paper.Results show that,near-surface current flows from west to east in the deep waters,there is a cyclonic eddy in the Prydz Bay.The main characteristics of oceanography hydrographic structure are that:(1) the upwelling phenomenon of Circumpolar Deep Water (CDW).The strongest location of upwelling is sea area north of Mcrobsion Land.The most obvious depth is in 50~200 m.The cold water in winter is divided in two parts by the CDW of upwelling.An isolated warm water is formed among them.(2)Boundary of continental margin water is obvious.This is the front between CDW and Antarctic cold water of subsurface,it is in 64°~66°S.(3) There is double thermocline structure.(4) During observation there is AABW north of the Prydz Bay.The source of AABW may have two: (1) it is formed in the locality, (2) it comes from the Ross Sea.
- The Prydz Bay,
- characteristics of hydrographic structure,
- AABW

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References(12)

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