CERTAIN PROPERTIES AND CAUSES OF VARIATIONS OF THE SOUTH EQUA-TORIAL COUNTERCURRENT IN THE PACIFIC OCEAN

Marine investigations were carried out in the western Central Equatorial Pacific region from 1976 to 1979 by three Chinese research vessels "Xiangyanghong 05", "Xiangyanghong 09" and "Shijian" belonging to the National Bureau of Oceanography. The data of currents, surface wind, drift of the ship, temperature, salinity, and so on, were obtained during the investigations, which provides more reliable basis for further studies on the South Equatorial Countercurrent in the Pacific Ocean. In this paper certain properties and causes of variations of the South Equatorial Countercurrent in the Pacific Ocean are analysed according to the above-mentioned data.