【摘要】 <正> 一、引言南大洋蕴藏着极为丰富的矿产资源和海洋生物资源,是地球上一个未开发的宝地。研究南大洋深层水的涌升,对海洋生物资源的开发具有重要的意义。海洋中海水的垂直运动与水平环流存在着密切的关系,深层水的上升可以用海洋的温盐结构场明显地体现出来。涌升水将下层营养丰富的有机物源源不断地带到上层,因此深层水的涌升是各种生物聚集的主要原更多还原

【Abstract】 Based on the data obtained from XBT and CTD of the First Internatinal BIO- MASS Experiment (FIBEX) in the January--March 1981. We described briefly the main hydrographic characteristics of the upwelling region in the prydz Bay and off shore and attempt to made an explanation of them. It is clear that lower temperature, higher salinity, dense density and higher nutrient salt is main feature in the surface and subsurfacp of the upwelling region in the off shore of the prydz Bay, but higher temperature, salinity and density in the Antarctic Divergence Zone. The cause may be divided into two sorts, one is surface water divergence in the interface region between the west wind drift and the east wind drift formed in the polar easterlies. The other is that water upwell along the slope as sea water flows from the lower latitude to the higher latitude. Upwelling plays a part of important role to the development of the BIOMASS.更多还原