| Lan Jian,Wang Dongxiao.Optimal estimation of absolute geostrophic velocity field in vicinity of the Luzon Strait using variational data assimilation technique[J].Acta Oceanologica Sinica,2002,(2):157-163 |
| Optimal estimation of absolute geostrophic velocity field in vicinity of the Luzon Strait using variational data assimilation technique |
| Optimal estimation of absolute geostrophic velocity field in vicinity of the Luzon Strait using variational data assimilation technique |
| 投稿时间：2001-10-10 修订日期：2002-02-20 |
| DOI： |
| 中文关键词: The South China Sea the Luzon Strait variational data assimilation technique |
| 英文关键词:The South China Sea the Luzon Strait variational data assimilation technique |
| 基金项目:This work was supported by the knowledge Innovation Project of the Chinese Academy of Sciences under contract Grant No. KZCX2-205); the National Natural Science Foundation of China under contract Grand No. 40106002. |
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| 中文摘要: |
| A P-vector method is optimized using the variational data assimilation technique(VDAT).The absolute geostrophic velocity fields in the vicinity of the Luzon Strait (LS) are calculated,the spatial structures and seasonal variations of the absolute geostrophic velocity field are investigated.Our results show that the Kuroshio enters the South China Sea (SCS) in the south and middle of the Luzon Strait and flows out in the north,so the Kuroshio makes a slight clockwise curve in the Luzon Strait,and the curve is strong in winter and weak in summer.During the winter,a westward current appears in the surface,and locates at the west of the Luzon Strait.It is the north part of a cyclonic gyre which exits in the northeast of the SCS; an anticyclonic gyre occurs on the intermediate level,and it exits in the northeast of the SCS,and an eastward current exits in the southeast of the anti-cyclonic gyre. |
| 英文摘要: |
| A P-vector method is optimized using the variational data assimilation technique(VDAT).The absolute geostrophic velocity fields in the vicinity of the Luzon Strait (LS) are calculated,the spatial structures and seasonal variations of the absolute geostrophic velocity field are investigated.Our results show that the Kuroshio enters the South China Sea (SCS) in the south and middle of the Luzon Strait and flows out in the north,so the Kuroshio makes a slight clockwise curve in the Luzon Strait,and the curve is strong in winter and weak in summer.During the winter,a westward current appears in the surface,and locates at the west of the Luzon Strait.It is the north part of a cyclonic gyre which exits in the northeast of the SCS; an anticyclonic gyre occurs on the intermediate level,and it exits in the northeast of the SCS,and an eastward current exits in the southeast of the anti-cyclonic gyre. |
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