中文摘要：

中国国家北极研究远征(CHINARE2003 ) 获得的温度和咸度数据被用来在白令海峡和周围的区域学习水结构。四水群众出现在研究区域：中间的 Bering 海水团(IBWM ) ，阿拉斯加沿海的水(ACW ) ， Anadyr 水(AW ) 和 Bering 架水(BSW ) 。AW 从 IBWM，而是上面的间层水发源极大地被改变了。在 28/29 2003 年 7 月上的巡航，仅仅在越过白令海峡(BSsection ) 的节有 BSW 和 ACW，但是在 9 月 12/13 日，巡航， AW， BSW 和 ACW 平行地流进 BeringStrait。这些水群众的上面的水都由于冰融化，流量，太阳辐射，并且风混合被改变。在白令海峡的中央、北的部分的水由二一致的层成层，当水的典型特征集中发源从，被表示和平。二层的结构也在 theChukchi 海的大多数部分统治了垂直成层结构。明显的潜水艇季节变异在 BS 节被观察，它引起了淡水，热，和物质的变化交通，并且生产了长期、广泛的影响在北极海洋。

英文摘要：

The temperature and salinity data obtained by the Chinese national arctic research expedition （CHINARE2003） are used to study the water structure in the Bering Strait and ambient regions. Four water masses appeared in the research region： the intermediate Bering Sea water mass （IBWM）, the Alaska coastal water （ACW）, the Anadyr water （AW） and the Bering shelf water （BSW）. The AW originates from the IBWM, but the upper layer water has been greatly altered. In the cruise on 28/29 July 2003, there were only the BSW and ACW in a section across the Bering Strait （BS section）, but in the September 12/13 cruise, the AW, BSW and ACW flowed parallelly into the Bering Strait. The upper waters of these water masses were all altered due to ice melting, runoff, solar radiation, and wind mixing. The waters in the central and northern parts of Bering Strait stratified by two uniform layers,were expressed as the typical feature of the water masses originating from the pacific. A two-layer structure also dominated the vertical stratification in most part of the Chukchi Sea. An obvious subseasonal variation was observed in the BS section, which caused varying transportation of fresh water, heat, and substance, and produced a long-term and extensive impact on the Arctic Ocean.