HYDROGRAPHIC SECTION ACROSS THE KUROSHIO NEAR 35-DEGREES-N, 143-DEGREES-E

A closely spaced conductivity-temperature-depth/hydrographic section w as conducted off the east coast of Japan in July 1992. The southeastwa rd section crossed the Japan Trench and the Kuroshio in the vicinity o f the Kashima 1 seamount. Vertical sections of temperature, salinity, density, oxygen, and nutrients are discussed in conjunction with the m ovement and interleaving of water masses. Complicated vertical and hor izontal mixings of water masses are inferred from the temperature and salinity relationships. Mixing processes are patchy and not continuous beneath the front. Warm, salty water found beneath the Kuroshio may r esult from upward mixing of water from intermediate depths. The main a xis of the Kuroshio, indicated by the 14-degrees-C isotherm at 200 m, is at 35.7-degrees-N, 142.6-degrees-E, about 20 km from the north wall surface thermal front. Geostrophic speeds exceed 170 cm s-1 at the su rface; volume transport through the section is 81 X 10(6) m3 s-1.