Origins and pathways of the subsurface and intermediate waters of Indonesian throughflow derived from historical and Argo data

ZHANG Yan-hui; YU Xiao-lin; WANG Fan

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ZHANG Yan-hui, YU Xiao-lin, WANG Fan. Origins and pathways of the subsurface and intermediate waters of Indonesian throughflow derived from historical and Argo data[J]. Haiyang Xuebao, 2008, 30(3): 1-8.

Citation:

ZHANG Yan-hui, YU Xiao-lin, WANG Fan. Origins and pathways of the subsurface and intermediate waters of Indonesian throughflow derived from historical and Argo data[J]. Haiyang Xuebao, 2008, 30(3): 1-8.

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Origins and pathways of the subsurface and intermediate waters of Indonesian throughflow derived from historical and Argo data

1.
Key Laboratory of Ocean Circulation and Waves, Institute of Oceanography, Chinese Academy of Science, Qingdao 266071, China;Graduate University of Chinese Academy of Science, Beijing 100049, China
2.
Key Laboratory of Ocean Circulation and Waves, Institute of Oceanography, Chinese Academy of Science, Qingdao 266071, China

Received Date: 2007-06-05
Rev Recd Date: 2007-10-21

Abstract

Abstract

Based on Argo data and historic temperature/salinity data from the World Ocean Database 2001 (WOD01),origins and spreading pathways of the subsurface and interm ediate water masses in the Indonesian Throughflow(ITF) region were discussed by analyzing distributions of salinity on representative isopycnal layers.Results were shown that,subsurface water mostly comes from the North Pacific while the intermediate water originates from both the North and South Pacific Ocean,even possibly from the Indian Ocean.Spreading through Sulawesi Sea,Makassar Strait,reach Flores Sea,the North Pacific Subsur face Water and North Pacific Intermediate Water dominate the western part of the Indonesian Archipelago.Furthermore as the depth increases,the features of the North Pacific sourced water masses become more obvious.In the eastern part of the waters,high salinity South Pacific Subsurface Water is blocked by a strong salinity front between Halmahera and New Guinea.Int er mediate watert here owns salinity higher than North Pacific Intermediate Water and Antarctica Intermediate Water(AAIW),possibly coming from thevertical mixing between subsurface water and the AAIW from the South Pacific,and possibly coming from the northward extending of the AAIW in the Indian Ocean as well.
- Indonesian Throughflow,
- subsurface water,
- inter mediate water,
- origin,
- pathway

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References(21)

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