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Hydrological character and Sea-current profiles structure are studied andanalyzed in sea-area of the front of Amery Ice Shelf,Prydz Bay with LADCP,CTDdata.These LADCP,CTD data were acquired during the 19th Chinese Antarctic Sci-entific Expedition.Results of this study agree with that,there exist four differentkinds of water masses in the area of the front of Amery Ice Shelf in the summer of Ant-arctica.Current distribution presents a semi-circumfluence which flows in at the eastand flows out in the west.Moreover,clockwise and anti-clockwise vortices werefound in upper layer and mid-layer in the Prydz Bay.Western areas of these anti-clockwise vortices are positions of inflows from Prydz Bay to Amery Ice Shelf.Thesource of these inflows is the coastal westward current originated in the east of PrydzBay.All these characteristics come down to the pattern of circumfluence,ice meltrate under Ice Shelf,scale of Ice Shelf water production and form of water exchangesbetween area of Ice Shelf and area of Prydz Bay. 相似文献
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Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area. 相似文献
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Emery冰架北缘热盐结构的不均匀性及其成因 总被引：1，自引：0，他引：1
根据2005-2006年夏季中国南极第22次南极科学考察的海洋水文资料(64°00′~69°15′S,68°00′~76°00′E),分析了普里兹湾内Emery冰架北缘浮冰区的水团性质。发现Emery冰架东西两端的表层热含量明显高于Emery冰架北缘中部。此外冰架北缘中部海域的上混合层和季节跃层的深度也明显小于东西两端。冰架北缘的底层热盐结构则无明显的东西差异。海洋遥感的证据表明:冰架北缘的表层水的不均匀性与浮冰和冰间湖的空间分布有着密切的联系。 相似文献
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