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划分水团之间的边界对于海洋学和漁业生产等有着重要的意义。所谓水团是在具体的自然地理条件下形成的,在较长时期中具有此较一致的物理、化学和生物特性和一定休积的水体,并作为一个统一的整体而传播。并且,作为这个水体内部特征的物理和化学性質,将在上述“比较一改”的某个范围内变动,这个范围的大小,则视形成这个水团的自然地理条件而定。本文将根据这个定义,并从数理统计的理论出发,提出用海水温度和盐度的概率分布来划分水团之间边界的方法。文中用严格的数学方法证明:在什么情况下,以海水温盐度的等值线密集(卽梯度大)作为水团边界与
The division of boundaries between water masses is of great importance to oceanography and fishery production. The so-called water mass is formed under specific physical and geographical conditions and has more consistent physical, chemical and biological properties and certain rest water bodies over a longer period of time and spread as a unified whole. Moreover, the physical and chemical properties of the interior of this body of water vary within a certain range of the above-mentioned “amending”. The size of this range depends on the natural and geographical conditions that form the water mass. Based on this definition and based on the theory of mathematical statistics, this paper proposes a method of dividing the boundaries between water masses by the probability distribution of seawater temperature and salinity. The paper uses rigorous mathematical methods to prove: Under what conditions, with the salinity of seawater salinity contour (卽 gradient) as the water mass boundary and