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镭同位素具有不同的半衰期,可以用来研究不同时空尺度的海洋学过程,在海洋学研究中得以广泛应用。镭同位素在海洋学中的应用主要包括溶解态物质输运,水体停留时间的估算,海洋地下水排放,沉积物的地球化学和放射年代学以及海洋水团分析5个方面的内容。从海洋中镭同位素的地球化学行为、测量方法及其在以上5个方面的研究综述了镭同位素海洋学研究进展,比较了海洋中镭同位素测量方法,阐释了各应用领域的示踪原理,给出各种应用的方法模式及公式,总结了镭同位素海洋学的发展变化,并指出我国镭同位素海洋学的发展前景和方向。
Radionuclides have different half-lives and can be used to study oceanographic processes at different spatio-temporal scales and are widely used in oceanographic research. The applications of radium isotopes in oceanography include the transport of dissolved matter, the estimation of water residence time, the discharge of marine groundwater, the geochemistry and radiochronology of sediments and the analysis of ocean water mass. The geochemical behavior and measurement methods of radium isotopes from the ocean and their research in the above five aspects are summarized, and the progress of radium isotope oceanography research is summarized. The radium isotope measurement method in the ocean is compared, and the tracer principle in each application field is explained. The methods and formulas of various applications are summarized, the development and changes of radium isotope oceanography are summarized, and the development prospect and direction of radium isotope oceanography in our country are pointed out.