Water masses in the Bering Strait revealed by radium isotopes
Water masses in the Bering Strait revealed by radium isotopes
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DOI：
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发表时间：
2011
影响因子：
1.4
通讯作者：
Yang Jun-hong
中科院分区：
文献类型：
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作者：
Yang Jun-hong
通过对白令海峡沿着64.3°N水柱中镭同位素的测定，揭示了太平洋水向北流动的特征。通过226 Ra和228 Ra的比活度以及228 Ra/226 Ra的A.R.show纵向变化，描述了太平洋水向北流动的途径。根据白令海峡的温度、盐度和镭同位素的分布，确定了3个水团：白令海峡的镭同位素具有明显的季节性变化，9月份的~（226）Ra、~（228）Ra和~（228）Ra/~（226）Ra比活度均高于7月份，而9月份的~（226）Ra和~（228）Ra比活度A.R.in均高于7月份。表明白令海峡西部的水在9月份受到西伯利亚沿岸流南下的影响。
Radium isotopes in the water column along 64.3°N in the Bering Strait were determined to reveal the northward flow of the Pacific water.The specific activities of 226Ra and 228Ra,and the 228Ra/226Ra)A.R.show a longitudinal variation in the Bering Strait,depicting the pathways of Pacific inflow.Based on the distributions of temperature,salinity and radium isotopes in the Bering Strait,three water masses were identified: the Anadyr Water in the western channel,the Alaskan Coastal Water in the eastern channel,and the Bering Shelf Water in the central strait.A subseasonal variation of radium isotopes in the Bering Strait was observed.The specific activities of 226Ra and 228Ra,and 228Ra/226Ra)A.R.in September are higher than those observed in July,indicating water in the western Bering Strait is influenced by the southward flow of the Siberia Coastal Current in September.