THE CIRCULATION IN THE SOURCE AREA OF THE SOUTH EQUATORIAL CURRENT INTHE EASTERN INDIAN-OCEAN

Direct current measurements and geostrophic transport estimates, using hydrographic data collected in the eastern Indian Ocean, reveal that during October 1987 the South Equatorial Current carried about 22 x 10 (6) m(3)/S in the upper 500 m of the water column. The Indonesian thro ughflow from the Pacific Ocean supplied about half of that transport; the other half came from the recirculation of the southern hemisphere subtropical gyre. The mixing of the Indian Central Water and the Austr alasian Mediterranean Water in the thermocline occurred mainly off the northwest Australian shelf due to enhanced mesoscale current variabil ity in that area.