| ZHANG Yanhui,YU Xiaolin,WANG Fan. 2008. Origins and pathways of the subsurface and intermediate water masses of the Indonesian Throughflow derived from historical and Argo data. Acta Oceanologica Sinica, (4):17－25 |
| Origins and pathways of the subsurface and intermediate water masses of the Indonesian Throughflow derived from historical and Argo data |
| Origins and pathways of the subsurface and intermediate water masses of the Indonesian Throughflow derived from historical and Argo data |
| Received:August 13, 2007 Revised:March 06, 2008 |
| DOI： |
| Key words:Indonesian Throughflow subsurface water intermediate water origin pathway |
| 中文关键词: Indonesian Throughflow subsurface water intermediate water origin pathway |
| 基金项目:This study is supported by the National Basic Research Program of China ("973" program) under contract No. 2006CB403601 and the National Natural Science Foundation of China under contract No. 40576016. |
| Author Name | Affiliation | E-mail | | ZHANG Yanhui | Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100049, China | | | YU Xiaolin | Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100049, China | | | WANG Fan | Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | fwang@ms.qdio.ac.cn |
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| Abstract: |
| On the basis of Argo data and historic temperature/salinity data from the World Ocean Database 2001 (WOD01), origins and spreading pathways of the subsurface and intermediate 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 Ocean while the intermediate water originates from both the North and South Pacific Ocean, even possibly from the Indian Ocean. Spreading through the Sulawesi Sea, the Makassar Strait, and the Flores Sea, the North Pacific subsurface water and the 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. Intermediate water in the eastern interior region owns salinity higher than the North Pacific intermediate water and the antarctic intermediate water (AAIW), possibly coming from the vertical mixing between subsurface water and the AAIW from the Pacific Ocean, and possibly coming from the northward extending of the AAIW from the Indian Ocean as well. |
| 中文摘要: |
| On the basis of Argo data and historic temperature/salinity data from the World Ocean Database 2001 (WOD01), origins and spreading pathways of the subsurface and intermediate 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 Ocean while the intermediate water originates from both the North and South Pacific Ocean, even possibly from the Indian Ocean. Spreading through the Sulawesi Sea, the Makassar Strait, and the Flores Sea, the North Pacific subsurface water and the 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. Intermediate water in the eastern interior region owns salinity higher than the North Pacific intermediate water and the antarctic intermediate water (AAIW), possibly coming from the vertical mixing between subsurface water and the AAIW from the Pacific Ocean, and possibly coming from the northward extending of the AAIW from the Indian Ocean as well. |
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