Abstract: Variational assimilation is used to combine velocity and sea-surface height anomaly (SSHA) measurements with a system of dynamics to estimate the seasonal flow through the Taushima/Korean Strait for the summer, autumn and winter seasons of 1999-2000. The velocity measurements are from two lines of moored acoustic Doppler Current profilers (ADCPs) spanning the Tsushima/Korean strait just north and south of Tsushima island and the SSHA measurements are from the TOPEX altimeter. The dynamics are the linear, time-independent, shallow-water equations and are forced by winds from the Navy Global Ocean and Atmospheric Prediction System. A weighted least-squares technique is used to determine the seasonal flow fields that simultaneously minimize the weighted residuals of the two data sets and the system of dynamics. The weights are based on expected errors, allowing the assimilation system to put more emphasis on the component of data and dynamics that are known more accurately.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Journal article |
| Pages: |
22 |
| Report Date: |
21 JUL 2005 |
| Report Number: |
A002844 |
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