Abstract
Dynamics of the South Java Coastal Current revealed by RAMA observing network
Highlights
The South Java Costal Current (SJCC) is seasonally varying coastal currents observed along the south coast of Java (Wyrtki 1962)
It has been suggested that strong eastward equatorial jets forced by the westerly winds along the equator during monsoon breaks in April to May and October to November could reach the South Java region through the propagation of Kelvin waves (Iskandar et al 2005; Sprintall et al 2009)
Note that due to big gaps in the zonal currents observed by the Acoustic Doppler Current Profiler (ADCP) mounted along the equator, the correlation was calculated only for short data: from 2 September 2009 to 16 May 2010 for ADCP at 80.5°E, and from 9 November 2009 to 16 May 2010 for ADCP at 90°E
Summary
The South Java Costal Current (SJCC) is seasonally varying coastal currents observed along the south coast of Java (Wyrtki 1962). It is confined in the upper 150 m depth with maximum speed was found at a depth of about 50 m (Iskandar et al 2006). It shows spatial variation, in which the strongest current was observed off south Java. Using a relatively higher vertical resolution of observed currents from the near surface down to a depth of 136 m in the south coast of Java, this study is designed to address the following questions. Discussion on the dynamical forcing of the SJCC is presented in section 4 and the final section is reserved for the conclusion
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