Abstract:

The Prydz Bay in the Antarctic,the important supporting sea area when China built Zhongshan Station, is the only way that research ship passes in and out Zhongshan Station. In this paper, according to the sketch of the depth of the water in the Prydz Bay alongshore,we research and analyse the general situation of the topography. The underwater topography in the Prydz Bay is rugged and rough. By the SN direction from the top of the bay,it formed a sea-floor canyon,about 800m depth,which is continuous to the bottom of the ice sheet. The topography of the both sides of the canyon is complicate,and the underwater hills are jagged. In finally,with the suitable depth of water,ice berg which breaks apart from the canyon bypasses the obstacle of the topography,goes away with the wind and ocean current to the west by the canyon.There are few advantageous topography for research ships dropping anchor at the other sea area in the gulf,except the place named Zhongshan Anchorage where ships may drop anchor which is the shallow water of flat ground.