首页|期刊导航|中国海洋湖沼学报（英文版）|Optimal estimation of zonal velocity and transport through Luzon Strait using variational data assimilation technique
中国海洋湖沼学报（英文版）2004，Vol.22Issue(4)：335-339,5.
Optimal estimation of zonal velocity and transport through Luzon Strait using variational data assimilation technique
Optimal estimation of zonal velocity and transport through Luzon Strait using variational data assimilation technique
摘要
Abstract
A P-vector method was optimized using variational data assimilation technique, with which the vertical structures and seasonal variations of zonal velocities and transports were investigated. The results showed that westward and eastward flowes occur in the Luzon Strait in the same period in a year. However the net volume transport is westward. In the upper level (0m - -500m),the westward flow exits in the middle and south of the Luzon Strait, and the eastward flow exits in the north. There are two centers of westward flow and one center of eastward flow. In the middle of the Luzon Strait, westward and eastward flowes appear alternately in vertical direction. The westward flow strengthens in winter and weakens in summer. The net volume transport is strong in winter (5.53 Sv) but weak in summer (0.29 Sv). Except in summer, the volume transport in the upper level accounts for more than half of the total volume transport (0m - bottom). In summer, the net volume transport in the upper level is eastward (1.01 Sv), but westward underneath.关键词
South China Sea/Luzon Strait/zonal velocity and transport/variational data assimilation techniqueKey words
South China Sea/Luzon Strait/zonal velocity and transport/variational data assimilation technique分类
海洋科学引用本文复制引用
LAN Jian,BAO Xianwen,GAO Guoping..Optimal estimation of zonal velocity and transport through Luzon Strait using variational data assimilation technique[J].中国海洋湖沼学报（英文版）,2004,22(4):335-339,5.基金项目
Supported by the Major State Basic Research Program (No. G1999043810), Open Laboratory for Tropical Marine Environmental Dynamics (LED), South China Sea Institute of Oceanology, Chinese Academy of Sciences, and the NSFC (No. 40306004). （No. G1999043810）
