| LAN Jian,ZHANG Ningning,WANG Caixia. 2012. The destiny of the North Pacific Intermediate Water in the South China Sea. Acta Oceanologica Sinica, (5):41－45 |
| The destiny of the North Pacific Intermediate Water in the South China Sea |
| The destiny of the North Pacific Intermediate Water in the South China Sea |
| Received:March 12, 2012 Revised:May 22, 2012 |
| DOI：10.1007/s13131-012-0234-8 |
| Key words:North Pacific Intermediate Water South China Sea P-vector method |
| 中文关键词: North Pacific Intermediate Water South China Sea P-vector method |
| 基金项目:National Basic Research Program of China under contract No. 2011CB403502; Ocean Public Welfare Scientific Research Project under contract No. 201105002-11. |
| Author Name | Affiliation | E-mail | | LAN Jian | Department of Oceanography, Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China | lanjian@ouc.edu.cn | | ZHANG Ningning | Department of Oceanography, Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China | | | WANG Caixia | Department of Oceanography, Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| The previous studies show that the spreading path of the subtropical salinity minimum of the North Pacific Intermediate Water (NPIW) is southwestward pointing to the Luzon Strait. Based on the P-vector method and generalized digital environmental model (GDEM) data, the volume transport of NPIW through Luzon Strait and the upward transport on the NPIW lower and upper boundaries are calculated to examine the destiny of NPIW in the South China Sea (SCS). On the annual mean, the estimation of NPIW transport into the SCS through the Luzon Strait is 1.72 Sv (1Sv=106 m3/s). The upward transport over the SCS is 0.31 Sv on the NPIW upper boundary and 1.31 Sv on the NPIW lower boundary. There is no strait or passage deeper than the surface for the NPIW to extend, except for the Luzon Strait. For the volume balance in the SCS NPIW, the volume transport of 2.72 Sv has to flow out of the SCS NPIW layer through the Luzon Strait. |
| 中文摘要: |
| The previous studies show that the spreading path of the subtropical salinity minimum of the North Pacific Intermediate Water (NPIW) is southwestward pointing to the Luzon Strait. Based on the P-vector method and generalized digital environmental model (GDEM) data, the volume transport of NPIW through Luzon Strait and the upward transport on the NPIW lower and upper boundaries are calculated to examine the destiny of NPIW in the South China Sea (SCS). On the annual mean, the estimation of NPIW transport into the SCS through the Luzon Strait is 1.72 Sv (1Sv=106 m3/s). The upward transport over the SCS is 0.31 Sv on the NPIW upper boundary and 1.31 Sv on the NPIW lower boundary. There is no strait or passage deeper than the surface for the NPIW to extend, except for the Luzon Strait. For the volume balance in the SCS NPIW, the volume transport of 2.72 Sv has to flow out of the SCS NPIW layer through the Luzon Strait. |
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